BUCHER CHECK VALVE Mini Catalog

1
Check
Valves
MODEL
DESCRIPTION
CVFP-08
CVPF-08
CVFP-10
CVFP-12
CVFP-16
FORWARD GUIDED POPPET TYPE
REVERSE GUIDED POPPET TYPE
1
CVRP-08
CVRP-10
CVRP-12
CVRP-16
10 GPM
18 GPM
36 GPM
50 GPM
C0820
C1020
C1220
C1620
1-021.0
1-022.0
1-023.0
1-024.0
CVFB-04
CVFB-08
CVFB-10
FORWARD GUIDED BALL TYPE
1
2.5 GPM
10 GPM
18 GPM
C0420
C0820
C1020
1-030.0
1-031.0
1-032.0
POCI-08
POCI-10
POCI-12
PILOT OPERATED CHECK, INTERNAL PILOT
10 GPM
18 GPM
35 GPM
C0825
C1025
C1225
1-101.0
1-102.0
1-103.0
POCX-08
POCX-10
POCX-12
PILOT OPERATED CHECK, EXTERNAL PILOT
10 GPM
18 GPM
35 GPM
C0820
C1020
C1220
1-111.0
1-112.0
1-113.0
PDCV-08
POCD-08
POCD-10
PILOT OPERATED DUAL CHECK
DPOC-08
DPOC-10
DPOC-12
DUAL PILOT OPERATED CHECK
10 GPM
18 GPM
36 GPM
C0825
C1025
C1225
1-141.0
1-142.0
1-143.0
PTCC-10
PILOT OPERATED CHECK, CLOSEPILOT
10 GPM
C1025
1-202.0
1
2
2
2
2
1
3
2
1
P
1
2
V1
replaced by CVPF-08
C0820
1-041.0
C1020
1-012.0
C1220
1-013.0
C1620
1-014.0
5 GPM
10 GPM
C0840
1-151.0
replaced by PDCV-08
C1040
1-132.0
C2
V2
1
2
10 GPM
18 GPM
36 GPM
60 GPM
CAVITY PAGE NO.
4
3
C1
FLOW
3
Reference: 520-P-010000-EN-02/02.2020
Cartridge Check Valve, Size SAE 08 / NG 5
Qmax = 10.0 gpm [38l/min],pmax = 5000 psi [350bar]
seat design, poppet style forward guided
Series CVPF-08…
S Compact construction for cavity type C0820
S Wide selection of bias springs allows flexibility for
back-pressure applications
S 100% performance-tested
S All exposed parts with zinc plating
S Can be fitted in a line-mounting body
S Replaces CVFP-08…
1
Description
This valve is a screw in cartridge type, guided poppet, hy­
draulic check valve. Use as a blocking or load holding de­
vice for 5000 psi (350 bar) applications. All external parts of
the cartridge are zinc plated to DIN 50979 and are thus sui­
2
table for use in the harshest operating environments. If you
intend to manufacture your own cavities or are designing a
line-mounting installation, please refer to the section “Rela­
ted data sheets”.
Symbol
USASI:
ISO:
2
1
2
3
Technical data
1
General characteristics
Description, value, unit
Designation
cartridge check valve
Design
seat design, poppet style forward guided
Mounting method
screw-in cartridge 3/4-16 UNF-2A
Size
SAE 08 / NG 5, for cavity type C0820
Weight
0.15 lbs
Mounting attitude
unrestricted
Ambient temperature range
-40°F … +248°F
Hydraulic characteristics
Description, value, unit
Maximum operating pressure
5000psi
[350bar]
Maximum flow rate
10.0 gpm
[38l/min]
Flow direction
shut-off direction 2 → 1
Opening pressure 1 → 2
5/15/30/60psi
[.35/1/2/4bar]
Leakage flow rate
5drops @ 5000psi
[5drops @ 350bar]
Hydraulic fluid
HL and HLP mineral oil to DIN 51 524;
for other fluids, please contact BUCHER
Hydraulic fluid temperature range
-13°F … +176°F
[0.07 kg]
[-40°C … +120°C]
[-25°C … +80°C]
Reference: 520-P-010410-EN-01
Issue: 02.2020
1/3
Hydraulic characteristics
Description, value, unit
Viscosity range
10…500mm2/s (cSt), recommended 15...250mm2/s (cSt)
Minimum fluid cleanliness
Cleanliness class to ISO 4406:1999
class 20/18/15
4
Performance graphs
[measured with oil viscosity 33mm2/s (cSt)]
Δp = f (Q) Pressure drop - Flow rate characteristic
p [psi (bar)]
150 (10.5)
120
EL_P0002.ai
(8.3)
60 psi
90 (6.2)
15 psi
30 psi
60 (4.2)
5 psi
30 (2.0)
0
(0)
0
(0)
4
(15.1)
2
(7.6)
6
(22.7)
8
(30.3)
10
(38)
Q [gpm (l/min)]
5
Dimensions & sectional view
6
Installation information
.875 HEX (22.2)
IMPORTANT!
When fitting the cartridges, use the specified tigh­
tening torque. No adjustments are necessary,
since the cartridges are set in the factory.
.45
(11,4)
MA = 2)
ATTENTION!
Only qualified personnel with mechanical skills
may carry out any maintenance work. Generally,
the only work that should ever be undertaken is to
check, and possibly replace, the seals. When
changing seals, oil or grease the new seals tho­
roughly before fitting them.
3
1.10
(27,9)
1.55
(39.29)
3/4−16 UNF−2A
2
2
Seal kit
1
1
Tightening torque MA 2)
Cavity type
When fitted in aluminium
When fitted in steel
C0820
25…30 ft-lbs (34 - 42[Nm])
35…40 ft-lbs (47 - 54[Nm])
Item
Qty.
Description
1
1
Backup ring
2
1
O-ring
3
1
O-ring
∅9.5 x 1.5
no. 908 ∅0.644 x 0.087
∅9.5 x 1.5
IMPORTANT!
Item no. 5207300004 = Seal kit NBR (Buna)
Item no. 5207300055 = Seal kit FKM (Viton)
2/3
520-P-010410-EN-01/02.2020
Series CVPF-08…
7
Ordering code
CVPF - 08
CVPF
= Check Valve Poppet-style Forward-guided
08
= size SAE 08 / NG 5
N
V
= NBR (Nitrile) seals (standard)
= FKM (Viton) seals
(special seals - please consult BUCHER)
0
02BA
02BS
06TA
06TS
=
=
=
=
=
005
015
030
060
120
opening (crack) pressure
=
5 psi [.35bar]
= 15 psi [1bar]
= 30 psi [2bar]
= 60 psi [4bar]
= 120 psi [8bar] (on request)
8
cartridge only (standard))
line-mounting body G ¼ BSPP
line-mounting body G ¼ BSPP
line-mounting body SAE-#6
line-mounting body SAE-#6
- N
-
0
- 005
aluminum (on request)
steel (on request)
aluminum
steel
Related data sheets
Reference
(Old no.)
520-P-000050
Description
Form tools
520-P-000110
(0–011.0)
Cavity type C0820
520-P-000111
(0–011.1)
Line-mounting body, 8 Series – 2 way
info.el@bucherhydraulics.com
www.bucherhydraulics.com/commoncavity
E 2020 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense. The
information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to continual
improvement, we reserve the right to amend the product specifications contained in this catalogue.
Classification: 430.315.340.305.310.330
520-P-010410-EN-01/02.2020
Series CVPF-08…
3/3
CVFP-10
CHECK VALVE FORWARD GUIDED POPPET
1
2
TORQUE:
Steel = 55/60 Ft-Lb. [74/81 Nm]
Aluminum = 35/40 Ft-Lb. [47/54 Nm]
1.06" [27,0] HEX
.800"
[20,3]
2.00"
[50,8]
1.28"
[32,5]
2
1
2.00"
[50,8]
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-012.1
L/M (28,5 cSt)
CVFP-10-X-X-XXX
200
19
38
57
76
14,0
SEALS
N = BUNA "N"
V = VITON
PORTS
0
02BX
03BX
06TX
08TX
=
=
=
=
=
CARTRIDGE ONLY
G 1/4" BSPP
G 3/8" BSPP
SAE - #6
SAE - #8
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
CRACK PRESSURE
005 =
5 PSI
015 =
15 PSI
030 =
30 PSI
060 =
60 PSI
120 = 120 PSI
PRESSURE DROP (
SIZE
10 = 7/8"-14 UNF
P)
BASIC
150
10,5
100
7,0
50
3,5
BAR
PSI
0
5
10
G.P.M.(135 SUS)
15
20
Reference: 520-P-010120-EN-00/09.2015
CVFP-10
CHECK VALVE FORWARD GUIDED POPPET
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided poppet,
hydraulic check valve, for use as a blocking or load holding
device for high pressure applications.
OPERATIONS
This valve allows free flow from port 1 to port 2 and blocks
flow from port 2 to port 1 or holding a load.
FEATURES AND BENEFITS
Wide selection of bias springs allows flexibility for
back-pressure application.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 18.0 GPM [68 l/m] nominal. See performance chart.
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-1021 Buna "N"
SKV-1021 Viton
WEIGHT: .25 lb [.12 kg] cartridge only.
VALVE CAVITY: #C1020, See Page 0-012.0.
info.el@bucherhydraulics.com
www.bucherhydraulics.com/commoncavity
© 2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-010120-EN-00/09.2015
CVFP-12
CHECK VALVE FORWARD GUIDED POPPET
2
1
TORQUE:
Steel = 70/75 Ft-Lb. [95/102 Nm]
Aluminum = 55/60 Ft-Lb. [74/81 Nm]
1.31" [33,3] HEX
1.13"
[28,7]
2.75"
[69,9]
1.75"
[44,5]
2
1
2.75"
[69,9]
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-013.1
CVFP-12-X-X-XXX
200
38
L/M (28,5 cSt)
76
114
151
14,0
SEALS
N = BUNA "N"
V = VITON
PORTS
0
04BX
06BX
10TX
12TX
=
=
=
=
=
CARTRIDGE ONLY
G 1/2" BSPP
G 3/4" BSPP
SAE - #10
SAE - #12
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
CRACK PRESSURE
5 PSI
005 =
15 PSI
015 =
30 PSI
030 =
60 PSI
060 =
120 = 120 PSI
PRESSURE DROP (
SIZE
12 = 1.062"-12 UNF
P)
BASIC
150
10,5
100
7,0
50
3,5
BAR
PSI
0
10
20
G.P.M.(135 SUS)
30
40
Reference: 520-P-010130-EN-00/01.2021
CVFP-12
CHECK VALVE FORWARD GUIDED POPPET
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided poppet,
hydraulic check valve, for use as a blocking or load holding
device for high pressure applications.
OPERATIONS
This valve allows free flow from port 1 to port 2 and blocks
flow from port 2 to port 1 or holding a load.
FEATURES AND BENEFITS
Wide selection of bias springs allows flexibility for
back-pressure application.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 36.0 GPM [136 l/m] nominal. See performance chart.
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-1221 Buna "N"
SKV-1221 Viton
WEIGHT: 0.50 lb [0.22 kg] cartridge only.
VALVE CAVITY: #C1220, See Page 0-013.0.
Reference: 520-P-010130-EN-00/01.2021
CVFP-16
CHECK VALVE FORWARD GUIDED POPPET
2
1
TORQUE:
Steel = 95/100 Ft-Lb. [129/136 Nm]
Aluminum = 70/75 Ft-Lb. [95/102 Nm]
1.50" [38,1] HEX
1.35"
[34,3]
3.00"
[76,2]
1.82"
[46,2]
2
1
3.00"
[76,2]
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-014.1
CVFP-16-X-X-XXX
200
38
L/M (28,5 cSt)
76
114
152
190
228
14,0
SEALS
N = BUNA "N"
V = VITON
PORTS
0
06BX
08BX
12TX
16TX
=
=
=
=
=
CARTRIDGE ONLY
G 3/4" BSPP
G 1.0" BSPP
SAE - #12
SAE - #16
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
CRACK PRESSURE
5 PSI
005 =
15 PSI
015 =
30 PSI
030 =
60 PSI
060 =
120 = 120 PSI
PRESSURE DROP (
SIZE
16 = 1.312"-12 UNF
P)
BASIC
150
10,5
100
7,0
50
3,5
BAR
PSI
0
10
20
30
40
G.P.M.(135 SUS)
50
60
Reference: 520-P-010140-EN-00/09.2015
CVFP-16
CHECK VALVE FORWARD GUIDED POPPET
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided poppet,
hydraulic check valve, for use as a blocking or load holding
device for high pressure applications.
OPERATIONS
This valve allows free flow from port 1 to port 2 and blocks
flow from port 2 to port 1 or holding a load.
FEATURES AND BENEFITS
Wide selection of bias springs allows flexibility for
back-pressure application.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 60.0 GPM [228 l/m] nominal. See performance chart.
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-1621 Buna "N"
SKV-1621 Viton
WEIGHT: 0.86 lb [0.39 kg] cartridge only.
VALVE CAVITY: #C1620, See Page 0-014.0.
info.el@bucherhydraulics.com
www.bucherhydraulics.com/commoncavity
© 2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-010140-EN-00/09.2015
CVRP-08
CHECK VALVE REVERSE GUIDED POPPET
TORQUE:
Steel = 35/40 Ft-Lb. [47/54 Nm]
Aluminum = 25/30 Ft-Lb. [34/41 Nm]
1.00" [25,4] HEX
.850"
[21,5]
1.88"
[47,62]
1.10"
[27,96]
2
1
.140"
[3,5]
1.88"
[47,62]
.312"
[7,9]
NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.438 DIA.)
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-011.1
CVRP-08-X-X-XXX
L/M (28,5 cSt)
7,6
SIZE
08 = 3/4"-16 UNF
SEALS
N = BUNA "N"
V = VITON
PORTS
0 = CARTRIDGE ONLY
02BX = G 1/4" BSPP
06TX = SAE - #6
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
CRACK PRESSURE
5 PSI
005 =
15 PSI
015 =
30 PSI
030 =
60 PSI
060 =
120 = 120 PSI
PRESSURE DROP (
P)
BASIC
15,1
22,7
30,3
38
300
21
250
17,2
200
14,0
150
10,5
7,0
100
3,5
50
BAR
0
PSI
2
4
6
8
10
G.P.M.(135 SUS)
Reference: 520-P-010210-EN-00/09.2015
CVRP-08
CHECK VALVE REVERSE GUIDED POPPET
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided poppet,
hydraulic check valve, for use as a blocking or load holding
device for high pressure applications.
OPERATIONS
This valve allows free flow from port 2 to port 1 and blocks
flow from port 1 to port 2 or holding a load.
FEATURES AND BENEFITS
Wide selection of bias springs allows flexibility for
back-pressure application.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 10.0 GPM [38 l/m] nominal. See performance chart.
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-0821 Buna "N"
SKV-0821 Viton
WEIGHT: .20 lb [.12 kg] cartridge only.
VALVE CAVITY: #C0820, See Page 0-011.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-010210-EN-00/09.2015
CVRP-10
CHECK VALVE REVERSE GUIDED POPPET
1
2
TORQUE:
Steel = 55/60 Ft-Lb. [74/81 Nm]
Aluminum = 35/40 Ft-Lb. [47/54 Nm]
1.06" [27,0] HEX
.80"
[20,3]
2.00"
[50,8]
1.28"
[32,5]
2.00"
[50,8]
2
1
.15" [3,8]
NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.570" DIA.)
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-012.1
L/M (28,5 cSt)
CVRP-10-X-X-XXX
200
19
38
57
76
14,0
SEALS
N = BUNA "N"
V = VITON
PORTS
0
02BX
03BX
06TX
08TX
=
=
=
=
=
CARTRIDGE ONLY
G 1/4" BSPP
G 3/4" BSPP
SAE - #10
SAE - #12
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
CRACK PRESSURE
5 PSI
005 =
15 PSI
015 =
30 PSI
030 =
60 PSI
060 =
120 = 120 PSI
PRESSURE DROP (
SIZE
10 = 7/8" - 14 UNF
P)
BASIC
150
10,5
100
7,0
50
3,5
BAR
PSI
0
5
10
G.P.M.(135 SUS)
15
20
Reference: 520-P-010220-EN-01/01.2016
CVRP-10
CHECK VALVE REVERSE GUIDED POPPET
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided poppet,
hydraulic check valve, used as a blocking or load holding
device for high pressure applications.
OPERATIONS
This valve allows free flow from port 2 to port 1 and blocks
flow from port 1 to port 2 or holding a load.
FEATURES AND BENEFITS
Wide selection of bias springs allows flexibility for
back-pressure application.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 18.0 GPM [68 l/m] nominal. See performance chart.
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-1021 Buna "N"
SKV-1021 Viton
WEIGHT: .25 lb [.12 kg] cartridge only.
VALVE CAVITY: #C1020, See Page 0-012.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-010220-EN-01/01.2016
CVRP-12
CHECK VALVE REVERSE GUIDED POPPET
1
2
TORQUE:
Steel = 70/75 Ft-Lb. [95/102 Nm]
Aluminum = 55/60 Ft-Lb. [74/81 Nm]
1.31" [33,3] HEX
1.13"
[28,7]
2.75"
[69,9]
2.75"
[69,9]
1.75"
[44,5]
2
1
.22" [5,6]
NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.750" DIA.)
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-013.1
CVRP-12-X-X-XXX
200
38
L/M (28,5 cSt)
76
114
151
14,0
SEALS
N = BUNA "N"
V = VITON
PORTS
0
04BX
06BX
10TX
12TX
=
=
=
=
=
CARTRIDGE ONLY
G 1/2" BSPP
G 3/4" BSPP
SAE - #10
SAE - #12
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
CRACK PRESSURE
5 PSI
005 =
15 PSI
015 =
30 PSI
030 =
60 PSI
060 =
120 = 120 PSI
PRESSURE DROP (
SIZE
12 = 1.062"-12 UNF
P)
BASIC
150
10,5
100
7,0
50
3,5
BAR
PSI
0
10
20
G.P.M.(135 SUS)
30
40
Reference: 520-P-010230-EN-00/09.2015
CVRP-12
CHECK VALVE REVERSE GUIDED POPPET
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided poppet,
hydraulic check valve, used as a blocking or load holding
device for high pressure applications.
OPERATIONS
This valve allows free flow from port 2 to port 1 and blocks
flow from port 1 to port 2 or holding a load.
FEATURES AND BENEFITS
Wide selection of bias springs allows flexibility for
back-pressure application.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 36.0 GPM [136 l/m] nominal. See performance chart.
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-1221 Buna "N"
SKV-1221 Viton
WEIGHT: 0.50 lb [0.22 kg] cartridge only.
VALVE CAVITY: #C1220, See Page 0-013.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-010230-EN-00/09.2015
CVRP-16
CHECK VALVE REVERSE GUIDED POPPET
1
2
TORQUE:
Steel = 95/100 Ft-Lb. [129/136 Nm]
Aluminum = 70/75 Ft-Lb. [95/102 Nm]
1.50" [38,1] HEX
1.35"
[34,3]
3.00"
[76,2]
1.82"
[46,2]
2
1
3.00"
[76,2]
.28" [7,1]
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-014.1
L/M (28,5 cSt)
CVRP-16-X-X-XXX
200
38
76
114
151
189
14,0
SEALS
N = BUNA "N"
V = VITON
PORTS
0
04BX
06BX
10TX
12TX
=
=
=
=
=
CARTRIDGE ONLY
G 1/2" BSPP
G 3/4" BSPP
SAE - #10
SAE - #12
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
CRACK PRESSURE
5 PSI
005 =
15 PSI
015 =
30 PSI
030 =
60 PSI
060 =
120 = 120 PSI
PRESSURE DROP (
SIZE
16 = 1.312"-12 UNF
P)
BASIC
150
10,5
100
7,0
50
3,5
BAR
PSI
0
10
20
30
G.P.M.(135 SUS)
40
50
Reference: 520-P-010240-EN-00/09.2015
CVRP-16
CHECK VALVE REVERSE GUIDED POPPET
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided poppet,
hydraulic check valve, used as a blocking or load holding
device for high pressure applications.
OPERATIONS
This valve allows free flow from port 2 to port 1 and blocks
flow from port 1 to port 2 or holding a load.
FEATURES AND BENEFITS
Wide selection of bias springs allows flexibility for
back-pressure application.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry
common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 50.0 GPM [190 l/m] nominal. See performance chart.
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-1621 Buna "N"
SKV-1621 Viton
WEIGHT: 0.82 lb [0.37 kg] cartridge only.
VALVE CAVITY: #C1620, See Page 0-014.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-010240-EN-00/09.2015
CVFB-04
CHECK VALVE FORWARD GUIDED BALL
1
2
.56"
[14,2]
.188"
[4,8]
HEX.
TORQUE to 10/12 Ft-Lb.
[14/16 N-m].
.100"
[2,54]
.93"
[23,6]
2
1
CVFB-04-X-0-XXX
L/M (28,5 cSt)
SEALS
N = BUNA "N"
V = VITON
PORTS
0 = CARTRIDGE ONLY
(NO HOUSING OFFERED)
CRACK PRESSURE
005 = 5 PSI
020 = 20 PSI
5,7
7,6
9,5
11,4
100
7,0
75
5,3
50
3,5
25
1,8
PRESSURE DROP (
BASIC
SIZE
04 = 7/16"-20 UNF
3,8
P)
150
1,9
BAR
PSI
0
0.5
1.0
1.5
2.0
2.5
3.0
G.P.M.(135 SUS)
Reference: 520-P-010300-EN-00/09.2015
CVFB-04
CHECK VALVE FORWARD GUIDED BALL
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided ball,
hydraulic check valve, for use as a blocking or load holding
device for high pressure applications.
OPERATIONS
This valve allows free flow from port 1 to port 2 and blocks
flow from port 2 to port 1 or holding a load.
FEATURES AND BENEFITS
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 2.5 GPM [9,5 l/m] nominal. See performance chart.
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-0421 Buna "N"
SKV-0421 Viton
WEIGHT: .08 lb [.04 kg] cartridge only.
VALVE CAVITY: #C0420.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-010300-EN-00/09.2015
CVFB-08
2
CHECK VALVE FORWARD GUIDED BALL
1
TORQUE:
Steel = 35/40 Ft-Lb. [47/54 Nm]
Aluminum = 25/30 Ft-Lb. [34/41 Nm]
1.00" [25.4] HEX
.478
[12,1]
1.88"
[47,8]
2
1.100
[27,9]
1.88"
[47,8]
1
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-011.1
CVFB-08-X-X-XXX
L/M (28,5 cSt)
SEALS
N = BUNA "N"
V = VITON
PORTS
0 = CARTRIDGE ONLY
02BX = G 1/4" BSPP
06TX = SAE - #6
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
CRACK PRESSURE
005 =
5 PSI
010 =
10 PSI
025 =
25 PSI
050 =
50 PSI
15,1
22,7
30,3
38
P)
SIZE
08 = 3/4"-16 UNF
7,6
240
PRESSURE DROP (
BASIC
200
17,2
160
14
120
10,5
7,0
80
3,5
40
0
PSI
21
BAR
2
4
6
8
10
G.P.M.(135 SUS)
Reference: 520-P-010310-EN-00/09.2015
CVFB-08
CHECK VALVE FORWARD GUIDED BALL
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided ball,
hydraulic check valve, for use as a blocking or load holding
device for high pressure applications.
OPERATIONS
This valve allows free flow from port 1 to port 2 and blocks
flow from port 2 to port 1 or holding a load.
FEATURES AND BENEFITS
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 10.0 GPM [38 l/m] nominal. See performance chart.
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-0821 Buna "N"
SKV-0821 Viton
WEIGHT: .20 lb [.12 kg] cartridge only.
VALVE CAVITY: #C0820, See Page 0-011.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-010310-EN-00/09.2015
CVFB-10
CHECK VALVE FORWARD GUIDED BALL
1
2
TORQUE:
Steel = 55/60 Ft-Lb. [74/81 Nm]
Aluminum = 35/40 Ft-Lb. [47/54 Nm]
1.06" [27,0] HEX
2.00"
[50,8]
.558"
[14,2]
1.28"
[32,5]
2
1
2.00"
[50,8]
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-012.1
L/M (28,5 cSt)
CVFB-10-X-X-XXX
200
19
38
57
76
14,0
SEALS
N = BUNA "N"
V = VITON
PORTS
0
02BX
03BX
06TX
08TX
=
=
=
=
=
CARTRIDGE ONLY
G 1/4" BSPP
G 3/4" BSPP
SAE - #10
SAE - #12
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
CRACK PRESSURE
5 PSI
005 =
15 PSI
015 =
30 PSI
030 =
60 PSI
060 =
120 = 120 PSI
PRESSURE DROP (
SIZE
10 = 7/8" - 14 UNF
P)
BASIC
150
10,5
100
7,0
50
3,5
BAR
PSI
0
5
10
G.P.M.(135 SUS)
15
20
Reference: 520-P-010320-EN-01/01.2016
CVFB-10
CHECK VALVE FORWARD GUIDED BALL
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided ball,
hydraulic check valve, for use as a blocking or load holding
device for high pressure applications.
OPERATIONS
This valve allows free flow from port 1 to port 2 and blocks
flow from port 2 to port 1 for holding a load.
FEATURES AND BENEFITS
Wide selection of bias springs allows flexibility for
back-pressure application.
All external parts are zinc plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 18.0 GPM [68 l/m] nominal. See performance chart.
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-1021 Buna "N"
SKV-1021 Viton
WEIGHT: .25 lb [.12 kg] cartridge only.
VALVE CAVITY: #C1020, See Page 0-012.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-010320-EN-01/01.2016
POCI-08
PILOT OPERATED CHECK VALVE POPPET TYPE,
1
2
PILOT TO OPEN, 3 TO 1 PILOT RATIO
3
TORQUE:
Steel = 35/40 Ft-Lb. [47/54 Nm]
Aluminum = 25/30 Ft-Lb. [34/41 Nm]
1.00"
[25,4]
HEX
.88"
[22,4]
3
2.50"
[63,5]
1.60"
[40,6]
2
1
.15"
[3,8]
.312"
[7,9]
2.25"
[57,2]
NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.500 DIA.).
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-021-1.
POCI-08-X-F-X-XXX
L/M (28,5 cSt)
200
CRACK PRESSURE
10 PSI
010 =
30 PSI
030 =
60 PSI
060 =
SEALS
N = BUNA "N"
V = VITON
PORTS
0 = CARTRIDGE ONLY
03BX = G 3/8" BSPP
08TX = SAE - #8
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
PRESSURE DROP (
SIZE
08 = 3/4"-16 UNF
ADJUSTMENT
F = FIXED
7,6
15,1
22,7
30,3
38
14,0
P)
BASIC
60
150
30
100
10,5
7,0
10
3,5
50
0
PSI
2
4
6
8
BAR
10
G.P.M.(135 SUS)
Reference: 520-P-011010-EN-00/09.2015
POCI-08
PILOT OPERATED CHECK VALVE POPPET TYPE,
PILOT TO OPEN, 3 TO 1 PILOT RATIO.
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided poppet,
hydraulic pilot operated check valve, for use as a blocking
or load holding device for high pressure applications.
OPERATIONS
This valve allows free flow from port 2 to port 1 and blocks
flow from port 1 to port 2 or holding a load. Flow will be allowed
from port 1 to port 2 when pressure is applied to port 3.
This pilot operated check valve has a 3 to 1 pilot ratio, meaning
that it takes at least one-third of the load pressure held at port 1
that is required at port 3 to open the valve.
FEATURES AND BENEFITS
A low friction seal on pilot piston is standard.
A seperate heavy spring assures fast return of the pilot piston for
a very quick, reliable and positve valve re-seat.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 10.0 GPM [38 l/m] nominal. See performance chart.
PILOT RATIO: 3 TO 1
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-0828 Buna "N"
SKV-0828 Viton
WEIGHT: .26 lb [.12 kg] cartridge only.
VALVE CAVITY: #C0825, See Page 0-021.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-011010-EN-00/09.2015
POCI-10
PILOT OPERATED CHECK VALVE POPPET TYPE,
1
2
PILOT TO OPEN, 3 TO 1 PILOT RATIO.
3
TORQUE:
Steel = 55/60 Ft-Lb. [74/81 Nm]
Aluminum = 35/40 Ft-Lb. [47/54 Nm]
1.06"
[27,0]
HEX
"M" MANUAL LOAD RELEASE
1/2" [12,7] HEX
"F" FIXED
1.63"
[42,3]
.795"
[20,2]
2.75"
[69,8]
3
1.85"
[46,9]
2
.15" [3,8]
1
2.50"
[63,5]
NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSIONS (.563 DIA.)
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-022-1.
L/M (28,5 cSt)
POCI-10-X-X-X-XXX
250
19
38
57
76
17,0
SIZE
10 = 7/8"-14 UNF
CRACK PRESSURE
10 PSI
010 =
30 PSI
030 =
60 PSI
060 =
SEALS
N = BUNA "N"
V = VITON
ADJUSTMENT
F = FIXED
M = MANUAL RELEASE
PORTS
0
02BX
03BX
06TX
08TX
=
=
=
=
=
CARTRIDGE ONLY
G 1/4" BSPP
G 3/8" BSPP
SAE - #6
SAE - #8
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
PRESSURE DROP (
P)
BASIC
200
13,6
150
10,2
100
6,8
50
3,4
PSI
0
5
10
G.P.M.(135 SUS)
15
BAR
20
Reference: 520-P-011020-EN-00/09.2015
POCI-10
PILOT OPERATED CHECK VALVE
POPPET TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO.
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided poppet,
hydraulic pilot operated check valve, for use as a blocking
or load holding device for high pressure applications.
OPERATIONS
This valve allows free flow from port 2 to port 1 and blocks
flow from port 1 to port 2 or holding a load. Flow will be allowed
from port 1 to port 2 when pressure is applied to port 3.
This pilot operated check valve has a 3 to 1 pilot ratio, meaning
that it takes at least one-third of the load pressure held at port 1
that is required at port 3 to open the valve.
FEATURES AND BENEFITS
A low friction seal on pilot piston is standard.
A seperate heavy spring assures fast return of the pilot piston for
a very quick, reliable and positve valve re-seat.
Optional screw type manual load release is available.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 18.0 GPM [70 l/m] nominal. See performance chart.
PILOT RATIO: 3 TO 1
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-1028 Buna "N"
SKV-1028 Viton
WEIGHT: .39 lb [.18 kg] cartridge only.
VALVE CAVITY: #C1025, See Page 0-022.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-011020-EN-00/09.2015
POCI-12
PILOT OPERATED CHECK VALVE POPPET TYPE,
1
2
PILOT TO OPEN, 3 TO 1 PILOT RATIO.
3
TORQUE:
Steel = 70/75 Ft-Lb. [95/102 Nm]
Aluminum = 55/60 Ft-Lb. [74/81 Nm]
1.31"
[33,4]
HEX
"M" MANUAL LOAD RELEASE
1/2" [12,7] HEX
"F" FIXED
1.99"
[50,5]
1.13"
[28,6]
3.50"
[88,9]
3
2.45"
[62,2]
2
.19" [4,8]
3.00"
[76,2]
1
NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.750 DIA.).
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-023-1.
L/M (28,5 cSt)
POCI-12-X-X-X-XXX
250
19
38
57
76
94
114
132
17,0
CRACK PRESSURE
10 PSI
010 =
30 PSI
030 =
60 PSI
060 =
SEALS
N = BUNA "N"
V = VITON
ADJUSTMENT
F = FIXED
M = MANUAL RELEASE
PORTS
0
04BX
06BX
10TX
12TX
=
=
=
=
=
CARTRIDGE ONLY
G 1/2" BSPP
G 3/4" BSPP
SAE - #10
SAE - #12
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
PRESSURE DROP (
SIZE
12 = 1.062"-12 UNF
P)
BASIC
200
13,6
150
10,2
100
6,8
50
3,4
PSI
0
5
10
15
20
G.P.M.(135 SUS)
25
30
BAR
35
Reference: 520-P-011030-EN-00/09.2015
POCI-12
PILOT OPERATED CHECK VALVE
POPPET TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO.
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided poppet,
hydraulic pilot operated check valve, for use as a blocking
or load holding device for high pressure applications.
OPERATIONS
This valve allows free flow from port 2 to port 1 and blocks flow
from port 1 to port 2 or holding a load. Flow will be allowed from
port 1 to port 2 when sufficient pilot pressure is applied to port 3.
This pilot operated check valve has a 3 to 1 pilot ratio, meaning
that it takes at least one-third of the load pressure held at port 1
that is required at port 3 to open the valve.
FEATURES AND BENEFITS
A low friction seal on pilot piston is standard.
A seperate heavy spring assures fast return of the pilot piston for
a very quick, reliable and positve valve re-seat.
Optional screw type manual load release is available.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 35.0 GPM [132.4 l/m] nominal. See performance chart.
PILOT RATIO: 3 TO 1
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-1228 Buna "N"
SKV-1228 Viton
WEIGHT: 0.63 lb [0,25 kg] cartridge only.
VALVE CAVITY: #C1225, See Page 0-023.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-011030-EN-00/09.2015
POCX-08
PILOT OPERATED CHECK VALVE POPPET TYPE,
PILOT TO OPEN, 3 TO 1 PILOT RATIO.
1
2
P
TORQUE:
Steel = 35/40 Ft-Lb. [47/54 Nm]
Aluminum = 25/30 Ft-Lb. [34/41 Nm]
1.00"
[25,4]
HEX
"P" PILOT PORT
1.75"
[44,45]
1.88"
[47,75]
1.10"
[27,94]
2
1
.140"
[4,0]
1.88"
[47,75]
.312"
[7,9]
NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.500 DIA.).
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-011.1
L/M (28,5 cSt)
POCX-08-X-X-4T-XXX
SIZE
08 = 3/4"-16 UNF
SEALS
N = BUNA "N"
V = VITON
CRACK PRESSURE
30 PSI
030 =
60 PSI
060 =
120 = 120 PSI
PORTS
0 = CARTRIDGE ONLY
02BX = G 1/4" BSPP
06TX = SAE - #6
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
"P" PILOT PORT
4T = SAE - #4
PRESSURE DROP (
P)
BASIC
200
7,6
15,1
22,7
30,3
38
14,0
150
10,5
100
7,0
50
3,5
0
PSI
2
4
6
8
BAR
10
G.P.M.(135 SUS)
Reference: 520-P-01111 0-EN-00/09.2015
POCX-08
PILOT OPERATED CHECK VALVE POPPET TYPE,
PILOT TO OPEN, 3 TO 1 PILOT RATIO
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided poppet,
hydraulic pilot operated check valve, for use as a blocking
or load holding device for high pressure applications.
OPERATIONS
This valve allows free flow from port 2 to port 1 and blocks
flow from port 1 to port 2 or holding a load. Flow will be allowed
from port 1 to port 2 when pressure is applied to pilot port "P".
This pilot operated check valve has a 3 to 1 pilot ratio, meaning
that it takes at least one-third of the load pressure held at port 1
that is required at pilot port "P" to open the valve.
We recommend to use an orifice to dampen the pilot signal (X) when used
with an on/off (hard shifting) valve.
FEATURES AND BENEFITS
Wide selection of bias springs allows flexibility for
back-pressure application.
A low friction seal on pilot piston is standard.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 10.0 GPM [38,0 l/m] nominal. See performance chart.
PILOT RATIO: 3 TO 1
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-0821 Buna "N"
SKV-0821 Viton
WEIGHT: .34 lb [.15 kg] cartridge only.
VALVE CAVITY: #C0820, See Page 0-011.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-01111 0-EN-00/09.2015
POCX-10
PILOT OPERATED CHECK VALVE POPPET TYPE,
1
2
PILOT TO OPEN, 3 TO 1 PILOT RATIO.
P
TORQUE:
Steel = 55/60 Ft-Lb. [74/81 Nm]
Aluminum = 35/40 Ft-Lb. [47/54 Nm]
1.06"
[27,0]
"P" PILOT PORT
1.70"
[43,2]
1.06" [27.0] HEX
2.00"
[50,8]
1.28"
[32,5]
2
.15" [3,8]
2.00"
[50,8]
1
NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION (.563 DIA.).
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-012.1
L/M (28,5 cSt)
POCX-10-X-X-XX-XXX
200
19
57
76
14,0
120
SEALS
N = BUNA "N"
V = VITON
CRACK PRESSURE
30 PSI
030 =
60 PSI
060 =
120 = 120 PSI
PORTS
=
=
=
=
=
CARTRIDGE ONLY
G 1/4" BSPP
G 3/8" BSPP
SAE - #6
SAE - #8
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
"P" PILOT PORT
2B = G 1/4" BSPP
4T = SAE - #4
PRESSURE DROP (
SIZE
10 = 7/8"-14 UNF
P)
BASIC
0
02BX
03BX
06TX
08TX
38
150
10,5
60
100
7,0
30
50
3,5
BAR
PSI
0
5
10
G.P.M.(135 SUS)
15
20
Reference: 520-P-011120-EN-00/09.2015
POCX-10
PILOT OPERATED CHECK VALVE
POPPET TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO.
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided poppet,
hydraulic pilot operated check valve, for use as a blocking
or load holding device for high pressure applications.
OPERATIONS
This valve allows free flow from port 2 to port 1 and blocks
flow from port 1 to port 2 or holding a load. Flow will be allowed
from port 1 to port 2 when pressure is applied to pilot port "P".
This pilot operated check valve has a 3 to 1 pilot ratio, meaning
that it takes at least one-third of the load pressure held at port 1
that is required at pilot port "P" to open the valve.
We recommend to use an orifice to dampen the pilot signal (X) when used
with an on/off (hard shifting) valve.
FEATURES AND BENEFITS
Wide selection of bias springs allows flexibility for
back-pressure application.
A low friction seal on pilot piston is standard.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 18.0 GPM [70 l/m] nominal. See performance chart.
PILOT RATIO: 3 TO 1
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-1021 Buna "N"
SKV-1021 Viton
WEIGHT: .31 lb [.14 kg] cartridge only.
VALVE CAVITY: #C1020, See Page 0-012.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-011120-EN-00/09.2015
POCX-12
PILOT OPERATED CHECK VALVE POPPET TYPE,
PILOT TO OPEN, 3 TO 1 PILOT RATIO.
1
2
P
TORQUE:
Steel = 70/75 Ft-Lb. [95/102 Nm]
Aluminum = 55/60 Ft-Lb. [74/81 Nm]
1.31"
[33,4]
HEX
"P" PILOT PORT
2.15"
[54,6]
2.75"
[69,9]
1.75"
[44,5]
2
.22" [5,6]
2.75"
[69,9]
1
NOTE: CAVITY BOTTOM HOLE MUST ALLOW FOR POPPET EXTENSION(.630 DIA.).
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-013.1
L/M (28,5 cSt)
POCX-12-X-X-XX-XXX
SEALS
N = BUNA "N"
V = VITON
CRACK PRESSURE
30 PSI
030 =
60 PSI
060 =
120 = 120 PSI
PORTS
0
04BX
06BX
10TX
12TX
=
=
=
=
=
CARTRIDGE ONLY
G 1/2" BSPP
G 3/4" BSPP
SAE - #10
SAE - #12
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
"P" PILOT PORT
2B = G 1/4" BSPP
4T = SAE - #4
PRESSURE DROP (
SIZE
12 = 1.062"-12 UNF
76
114
151
14,0
120
P)
BASIC
200
38
150
10,5
60
100
7,0
30
50
3,5
BAR
PSI
0
10
20
G.P.M.(135 SUS)
30
40
Reference: 520-P-011130-EN-00/09.2015
POCX-12
PILOT OPERATED CHECK VALVE
POPPET TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO.
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided poppet,
hydraulic pilot operated check valve, for use as a blocking
or load holding device for high pressure applications.
OPERATIONS
This valve allows free flow from port 2 to port 1 and blocks flow
from port 1 to port 2 or holding a load. Flow will be allowed from
port 1 to port 2 when sufficient pilot pressure is applied to port "P".
This pilot operated check valve has a 3 to 1 pilot ratio, meaning
that it takes at least one-third of the load pressure held at port 1
that is required at pilot port "P" to open the valve.
We recommend to use an orifice to dampen the pilot signal (X) when used
with an on/off (hard shifting) valve.
FEATURES AND BENEFITS
Wide selection of bias springs allows flexibility for
back-pressure application.
A low friction seal on pilot piston is standard.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 35.0 GPM [132,5 l/m] nominal. See performance chart.
PILOT RATIO: 3 TO 1
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-1221 Buna "N"
SKV-1221 Viton
WEIGHT: 0.31 lb [0,14 kg] cartridge only.
VALVE CAVITY: #C1220, See Page 0-013.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-011130-EN-00/09.2015
Dual P.O. Check Valve Cartridge, SAE 08 / NG 5
Qmax = 5 gpm (19 l/min),pmax = 3600psi (250 bar)
Pilot operated
Series PDCV-08…
S A low friction pilot piston is standard
S Compact construction for cavity types:
C0840 and AN/C0840 – 3/4-16 UNF
S Separate springs assure fast return to neutral position
S Reliable and high positive re-seat duration
S All exposed parts with zinc-nickel plating
S Can be fitted in a line-mounting body
S Replaces POCD-08…
1
Description
The PDCV­08… series dual pilot operated check valve
cartridges are size SAE 08 / NG 5, high performance
screw­in valves with a 3/4­16 UNF mounting thread. This
unit is a cartridge type, high strength steel guided poppet for
realizable low leakage performance, dual hydraulic pilot
operated check valve, for use as a blocking or load holding
device at high pressure applications.This valve allows free
flow from port 2 to port 1 and from port 3 to port 4 and it
blocks flow from port 1 to port 2 and from port 4 to port 3.
2
Flow is allowed from port 1 to port 2 when pilot pressure is
sensed at port 3 or flow is allowed from port 4 to port 3 when
pilot pressure is sensed at port 2. In order to pilot the valve
opens, the pressure at port 2 or port 3 needs to exceed onethird of the load pressure from port 1 or port 4. All external
parts of the cartridge are zinc-nickel plated according to DIN
EN ISO 19 598 and are thus suitable for use in the harshest
operating environments. For self-assembly, please refer to
the section related data sheets.
Symbol
4
1
4
3
2
PDCV-08-…-C…
3
1
2
3
PDCV-08-…-3…
Technical data
General characteristics
Description, value, unit
Designation
dual p.o. check valve cartridges
Design
pilot operated
Mounting method
screw-in cartridge 3/4-16 UNF-2A
Size
SAE 08 / NG 5 for cavity type C0840 and AN/C0840
Weight
0.26 lbs
Mounting attitude
unrestricted
Ambient temperature range
-40°F…+250°F
Optional internal thermal relief valve
from port 4 to port 3
3000 psi (210 bar), not adjustable
(0.12 kg)
(-40°C…+120°C)
Reference: 520-P-011510-EN-02
Issue: 04.2021
1/4
Hydraulic characteristics
Description, value, unit
Maximum operating pressure
3600 psi
(250bar)
Maximum flow rate
5 gpm
(19l/min)
Pilot Ratio
3.0 to 1
Leakage flow rate
5 drops/min @ 3500 psi
Flow direction
see symbol
Hydraulic fluid
HL and HLP mineral oil to DIN 51 524;
for other fluids, please contact BUCHER
Hydraulic fluid temperature range
-40°F…+250°F
Viscosity range
15…380mm2/s
Minimum fluid cleanliness
Cleanliness class to ISO 4406:1999
class 18/16/13
4
(5 drops/min @ 240 bar)
(-40°C…+120°C)
(cSt), recommended 20...130mm2/s (cSt)
Performance graphs
measured with oil viscosity 33mm2/s (cSt)
Δp = f (Q) Pressure drop - Flow rate characteristic
Δp = f (Q) Pressure drop - Flow rate characteristic
“free flow 2 → 1“
“free flow 3 → 4“
p [psi (bar)]
250 (17.2)
p [psi (bar)]
EL_P0022.ai
250 (17.2)
200 (13.8)
200 (13.7)
150 (10.3)
150 (10.3)
100
(6.9)
100
(6.9)
50
(3.5)
50
(3.5)
0
(0)
0
(0)
0
(0)
1
(3.8)
2
(7.8)
3
(11.4)
4
(15)
5
(19)
EL_P0023.ai
0
(0)
1
(3.8)
Q [gpm (l/min)]
2
(7.8)
3
(11.4)
4
(15)
5
(19)
Q [gpm (l/min)]
Attention:
When flow passes through the check valve and
there is a large pressure difference, the poppet in
the main stage can be damaged.
Q = f (I; Δp) Flow rate adjustment characteristic
Q = f (Δp; I) Flow rate adjustment characteristic
“pilot 2 flow 4 → 3“
“pilot 3 flow 1 → 2“
p [psi (bar)]
250 (17.2)
p [psi (bar)]
EL_P0024.ai
250 (17.2)
200 (13.7)
200 (13.7)
150 (10.3)
150 (10.3)
100
(6.9)
100
(6.9)
50
(3.5)
50
(3.5)
0
(0)
0
(0)
0
(0)
1
(3.8)
2
(7.8)
3
(11.4)
Q [gpm (l/min)]
2/4
4
(15)
5
(19)
EL_P0025.ai
0
(0)
1
(3.8)
2
(7.8)
3
(11.4)
4
(15)
5
(19)
Q [gpm (l/min)]
520-P-011510-EN-02/04.2021
Series PDCV-08…
5
Dimensions & sectional view
Dimensions in inches (millimeters)
1.00 HEX
[25.4]
.85
[21.6]
Tightening torque MA 2)
MA= 2)
±10%
Cavity type
C0840, AN/C0840
When fitted in steel
37 ft-lbs (50[Nm])
When fitted in aluminium
27 ft-lbs (37[Nm])
4
3/4−16 UNF−2A
3.00
[76.2]
4
2.15
[54.6]
2
6
3
2
1
5
1
3
7
3
2
1
6
Installation information
Important:
When fitting the cartridges, use the specified
tightening torque. No adjustments are necessary,
since the cartriges are set in the factory.
ATTENTION!
Only qualified personnel with mechanical skills
may carry out any maintenance work. Generally,
the only work that should ever be undertaken is to
check, and possibly replace, the seals. When
changing seals, oil or grease the new seals tho­
roughly before fitting them.
Seal kit NBR no. SKN-0842 1)
Item
Qty.
4
1
O-ring
6
2
O-ring
5
2
7
2
2
IMPORTANT!
Description
no.908 ∅0.644x0.087
1)
N90
Inch
∅13.00x1.50
FKM
mm
O-ring
∅11.00x1.50
FKM
mm
O-ring
∅ 9.50x1.50
FKM
mm
2
Backup ring
∅13.00x1.50x1.00 FI0751
mm
1
2
Backup ring
∅11.30x1.50x1.00 FI0751
mm
3
2
Backup ring
∅ 9.50x1.50x1.00 FI0751
mm
520-P-011510-EN-02/04.2021
Series PDCV-08…
Seal kit with FKM (Viton) seals, no. SKV-0842
3/4
7
Ordering code
PDCV - 08 - N - C -
PDCV
= pilot operated dual check valve
08
= size SAE 08 / NG 5
N
V
= NBR (Nitrile) seals (standard)
= FKM (Viton) seals
(special seals - please consult BUCHER)
C
3
= no thermal relief
= 3000 psi (210 bar) internal thermal relief from port 4 to port 3, not adjustable
0
02BA
02BS
06TA
06TS
=
=
=
=
=
8
O
cartridge only
line-mounting body G1/4 BSPP
line-mounting body G1/4 BSPP
line-mounting body SAE-#6
line-mounting body SAE-#6
aluminum
steel
aluminum
steel
Related data sheets
Reference
(Old no.)
Description
520-P-000050
Form tools
520-P-000410
Cavity type C0840
…
Cavity type AN/C0840
520-P-000411
Line-mounting body, 08 Series – 4-way
info.el@bucherhydraulics.com
www.bucherhydraulics.com/commoncavity
E 2021 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense. The
information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to continual
improvement, we reserve the right to amend the product specifications contained in this catalogue.
Classification: 430.315.345.305.305
4/4
520-P-011510-EN-02/04.2021
Series PDCV-08…
POCD-10
PILOT OPERATED DUAL CHECK VALVE
WITH OPTIONAL THERMAL RELIEF
1
4
1
4
2
3
2
3
TORQUE:
Steel = 55/60 Ft-Lb. [74/81 Nm]
Aluminum = 35/40 Ft-Lb. [47/54 Nm]
1.06"
[27,0]
HEX
1.00
[25,4]
3.50"
[88,9]
4
2.49"
[63,2]
3
2
2.50"
[63,5]
1
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-042.1
POCD-10-X-X-X
L/M (28,5 cSt)
SIZE
10 = 7/8"-14 UNF
SEALS
N = BUNA "N"
V = VITON
TYPE
C = NO THERMAL RELIEF
3 = 3000 PSI RELIEF
5 = 5000 PSI RELIEF
CARTRIDGE ONLY
G 1/4" BSPP
G 3/8" BSPP
SAE - #6
SAE - #8
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
200
7,6
15,1
22,7
30,3
37,9
13,8
175
PRESSURE PSI
BASIC
PORTS
0 =
02BX =
03BX =
06TX =
08TX =
0
D
TE
LO
I
P
150
125
EE
100
6,9
FR
75
LOW
E F
50
FRE
25
TED
PILO
0
10,3
OW
FL
0
2
3,4
4
6
8
BAR
10
G.P.M. (135 SUS)
Reference: 520-P-011320-EN-00/09.2015
POCD-10
PILOT OPERATED DUAL CHECK VALVE
WITH OPTIONAL THERMAL RELIEF
DESCRIPTION
This unit is a SCREW IN, cartridge type, guided poppet,
hydraulic pilot operated dual check valve, for use as a blocking
or load holding device for high pressure applications.
Thermal relief option available in one direction.
OPERATIONS
This check valve allows free flow from port 2 to port 1 and
from port 3 to port 4.
It blocks flow from port 1 to port 2
and from port 4 to port 3 or holds a load. Flow will be allowed
from port 1 to port 2 when pilot pressure is applied to port 3
that is higher than one-third of the load pressure at port 1.
Flow will be allowed from port 4 to port 3 when pilot pressure
is applied to port 2 that is higher than one-third of the load
pressure at port 4.
This pilot operated check valve has a 3 to 1 pilot ratio.
Port 4 can be equipped with a thermal relief.
The relief is set to
open when the pressure in port 4 exceeds the relief setting.
FEATURES AND BENEFITS
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 10.0 GPM [37.9 l/m] nominal. See performance chart.
PILOT RATIO: 3 TO 1
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-1042 Buna "N"
SKV-1042 Viton
WEIGHT: .40 lb. [.19 kg] cartridge only.
VALVE CAVITY: #C1040, See Page 0-042.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-011320-EN-00/09.2015
DPOC-08
DUAL PILOT OPERATED CHECK VALVE POPPET
TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO.
C1
C2
V1
V2
"F" FIXED
0.85
[21,6]
V2
Elgin, Illinois
MODEL NUMBER
DPOC-08-X-F-X-XX
V2
V1
1.12
[28,5]
C1
2.50
[63,5]
C2
0.60
[15,2]
1.37
[34,8]
3.37
[85,6]
1.20
[30,5]
3.75
[95,3]
FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-026.0
DPOC-08-X-X-X-XXX
L/M (28,5 cSt)
SIZE
08 = 3/4"-16 UNF
CRACK PRESSURE
010 =
10 PSI
030 =
30 PSI
060 =
60 PSI
SEALS
N = BUNA "N"
V = VITON
ADJUSTMENT
F = FIXED
PORTS
03BX = G 3/8" BSPP
04BX = G 1/2" BSPP
08TX = SAE - #8
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
PRESSURE DROP (
P)
BASIC
200
7,6
15,1
22,7
30,3
60
150
30
100
10
50
0
PSI
2
4
6
8
38
14,0
10,5
7,0
3,5
BAR
10
G.P.M.(135 SUS)
Reference: 520-P-011410-EN-00/09.2015
DPOC-08
DUAL PILOT OPERATED CHECK VALVE
POPPET TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO.
DESCRIPTION
This unit is a cartridge type, guided poppet, with cross line
pilot, dual hydraulic pilot operated check valve, for use as a blocking
or load holding device for high pressure applications.
OPERATIONS
This valve allows free flow from port V1 to port C1 and V2 to C2
then blocks reverse flow until a pilot pressure is sensed at pilot
ports which are connected to ports V1 and V2 therefore opening flow
from port C1 or port C2.
This pilot operated check valve has a 3 to 1 pilot ratio, meaning
that it takes at least one-third of the load pressure held at port 1
that is required at port 3 to open the valve.
FEATURES AND BENEFITS
A low friction seal on pilot piston is standard.
A separate heavy spring assures fast return of the pilot piston for
a very quick, reliable and positve valve re-seat.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 10.0 GPM [38 l/m] nominal. See performance chart.
PILOT RATIO: 3 TO 1
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-0828 Buna "N"
SKV-0828 Viton
WEIGHT: 1.70 lb [.77 kg].
VALVE CAVITIES: #C0825, See Page 0-021.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-011410-EN-00/09.2015
DPOC-10
DUAL PILOT OPERATED CHECK VALVE POPPET
TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO.
C1
C2
V1
V2
"M" MANUAL LOAD RELEASE
1.63"
[42,3]
.795"
[20,1]
V2
1.30"
[33,0]
V2
V1
3.00"
[76,2]
C2
C1
1.50"
[38,1]
.63"
[15,9]
3.63"
[92,1]
1.25"
[31,8]
4.00"
[101,6]
L/M (28,5 cSt)
DPOC-10-X-X-X-XXX
250
19
38
57
76
17,0
SIZE
10 = 7/8"-14 UNF
CRACK PRESSURE
10 PSI
010 =
30 PSI
030 =
60 PSI
060 =
SEALS
N = BUNA "N"
V = VITON
ADJUSTMENT
F = FIXED
M = MANUAL RELEASE
PORTS
03BX
04BX
08TX
10TX
=
=
=
=
G 3/8" BSPP
G 1/2" BSPP
SAE - #8
SAE - #10
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
PRESSURE DROP (
P)
BASIC
13,6
200
60
150
30
10,2
10
100
6,8
50
3,4
PSI
0
5
10
G.P.M.(135 SUS)
15
BAR
20
Reference: 520-P-011420-EN-00/09.2015
DPOC-10
DUAL PILOT OPERATED CHECK VALVE
POPPET TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO.
DESCRIPTION
This unit is a cartridge type, guided poppet, with cross line
pilot, dual hydraulic pilot operated check valve, for use as a blocking
or load holding device for high pressure applications.
OPERATIONS
This valve allows free flow from port V1 to port C1 and V2 to C2
then blocks reverse flow until a pilot pressure is sensed at pilot
ports which are connected to ports V1 and V2 therefore opening flow
from port C1 or port C2.
This pilot operated check valve has a 3 to 1 pilot ratio, meaning
that it takes at least one-third of the load pressure held at port 1
that is required at port 3 to open the valve.
FEATURES AND BENEFITS
A low friction seal on pilot piston is standard.
A separate heavy spring assures fast return of the pilot piston for
a very quick, reliable and positve valve re-seat.
Optional screw type manual load release is available.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 18.0 GPM [70 l/m] nominal. See performance chart.
PILOT RATIO: 3 TO 1
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-1028 Buna "N"
SKV-1028 Viton
WEIGHT: 1.85 lb [.92 kg].
VALVE CAVITIES: #C1025, See Page 0-022.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-011420-EN-00/09.2015
DPOC-12
DUAL PILOT OPERATED CHECK VALVE POPPET
TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO.
C1
C2
V1
V2
"M" MANUAL LOAD RELEASE
1.99"
[50,5]
1.13"
[28,6]
1.67"
[42,4]
V2
V1
V2
3.50"
[88,9]
C2
C1
1.90"
[48,3]
.81"
[20,7]
4.50"
[114,3]
1.63"
[41,3]
5.00"
[127]
L/M (28,5 cSt)
DPOC-12-X-X-X-XXX
250
34
68
102
136
17,0
SIZE
12 = 1.062"-12 UNF
CRACK PRESSURE
10 PSI
010 =
30 PSI
030 =
60 PSI
060 =
SEALS
N = BUNA "N"
V = VITON
ADJUSTMENT
F = FIXED
M = MANUAL RELEASE
PORTS
04BX
06BX
10TX
12TX
=
=
=
=
G 1/2" BSPP
G 3/4" BSPP
SAE - #10
SAE - #12
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
PRESSURE DROP (
P)
BASIC
13,6
200
60
150
30
10,2
10
100
6,8
50
3,4
PSI
0
9
18
G.P.M.(135 SUS)
27
BAR
36
Reference: 520-P-011430-EN-00/09.2015
DPOC-12
DUAL PILOT OPERATED CHECK VALVE
POPPET TYPE, PILOT TO OPEN, 3 TO 1 PILOT RATIO.
DESCRIPTION
This unit is a cartridge type, guided poppet, with cross line
pilot, dual hydraulic pilot operated check valve, for use as a blocking
or load holding device for high pressure applications.
OPERATIONS
This valve allows free flow from port V1 to port C1 and V2 to C2
then blocks reverse flow until a pilot pressure is sensed at pilot
ports which are connected to ports V1 and V2 therefore opening flow
from port C1 or port C2.
This pilot operated check valve has a 3 to 1 pilot ratio, meaning
that it takes at least one-third of the load pressure held at port 1
that is required at port 3 to open the valve.
FEATURES AND BENEFITS
A low friction seal on pilot piston is standard.
A separate heavy spring assures fast return of the pilot piston for
a very quick, reliable and positve valve re-seat.
Optional screw type manual load release is available.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 36.0 GPM [136.3 l/m] nominal. See performance chart.
PILOT RATIO: 3 TO 1
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
FILTRATION: 25 microns or better.
SEAL KIT: SKN-1228 Buna "N"
SKV-1228 Viton
WEIGHT: 2.65 lb [1.21 kg] Aluminium. 5.25 lbs [2.38] Steel.
VALVE CAVITIES: #C1225
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-011430-EN-00/09.2015
PTCC-10
PILOT OPERATED CHECK VALVE POPPET TYPE,
1
2
PILOT TO CLOSE, PILOT RATIO.
3
TORQUE:
Steel = 55/60 Ft-Lb. [74/81 Nm]
Aluminum = 35/40 Ft-Lb. [47/54 Nm]
1.06"
[27,0]
HEX
"M" MANUAL LOAD RELEASE
1/2" [12,7] HEX
"F" FIXED
1.63"
[42,3]
.847"
[21,5]
2.75"
[69,8]
3
1.85"
[46,9]
2
1
2.50"
[63,5]
NOTE: FOR ALUMINUM OR STEEL VALVE HOUSING CONFIGURATIONS SEE PAGE 0-022.1.
L/M (28,5 cSt)
PTCC-10-X-X-X-X
125
11,3
22,7
34,1
45,4
8,6
SEALS
N = BUNA "N"
V = VITON
ADJUSTMENT
F = FIXED
M = MANUAL RELEASE
PILOT RATIO
2 = 2 TO 1
3 = 3 TO 1
PORTS
0 = CARTRIDGE ONLY
06TX = SAE - #6
08TX = SAE - #8
02BX = 1/4" BSPP
03BX = 3/8" BSPP
"A" - ALUM. HOUSING
"S" - STEEL HOUSING
PRESSURE DROP (
SIZE
10 = 7/8"-14 UNF
P)
BASIC
6,8
100
5,2
75
3 TO 1 RATIO
2 TO 1 RATIO
50
3,4
25
1,7
PSI
0
3
6
G.P.M.(135 SUS)
9
BAR
12
Reference: 520-P-012020-EN-00/09.2015
PTCC-10
PILOT OPERATED CHECK VALVE
POPPET TYPE, PILOT TO CLOSE, PILOT RATIO.
DESCRIPTION
This unit is a SCREW-IN cartridge type, guided poppet,
hydraulic pilot operated check valve, for use as a blocking
or load holding device for high pressure applications.
OPERATIONS
This valve allows free flow from port 1 to port 2 and blocks
flow from port 2 to port 1 for holding a load. Flow will not be
allowed from port 2 to port 1 when pressure is applied to port 3.
This pilot operated check valve has a 3 to 1 or 2 to 1 pilot ratio,
meaning that port 3 requires at least one-third or half of the load
pressure held at port 2 to close the valve.
FEATURES AND BENEFITS
A low friction seal on pilot piston is standard.
A separate heavy spring assures fast return of the pilot piston for
a very quick, reliable and positve valve re-open.
Optional screw type manual load release is available.
All external carbon steel parts are plated for longer life against the elements.
All cartridge valves are 100% functionally tested.
Industry common cavity.
SPECIFICATIONS
OPERATING PRESSURE: 5,000 PSI [350 Bar]
PROOF PRESSURE: 10,000 PSI [700 Bar]
FLOW: 10.0 GPM [38 l/m] nominal. See performance chart.
PILOT RATIO: 3 TO 1 OR 2 TO 1
INTERNAL LEAKAGE: 5 drops per minute maximum @ 5,000 PSI [350 Bar]
VALVE HOUSINGS: 2500 PSI [175 Bar] = Aluminum - Anodized.
5000 PSI [350 Bar] = Steel - Unplated.
OPERATING TEMPERATURE: -40° to +250° F. [-40° to +120° C.]
OPERATING MEDIA: All general purpose hydraulic fluids such as
MIL-H-5606, SAE-#10, SAE-#20, etc.
INSTALLATION: No restrictions.
SEAL KIT: SKN-1028 Buna "N"
SKV-1028 Viton
WEIGHT: .32 lb [.15 kg] cartridge only.
VALVE CAVITY: #C1025, See Page 0-022.0.
info.el@bucherhydraulics.com
©
www.bucherhydraulics.com/commoncavity
2015 by Bucher Hydraulics, Inc., 2545 Northwest Parkway, Elgin, Illinois 60124, USA
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense.
The information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to
continual improvement, we reserve the right to amend the product specifications contained in this catalogue.
Reference: 520-P-012020-EN-00/09.2015