A M E R I C A S N T A N D A R D Graphical Symbols- for Pipe Fittings, Valves, and Piping ASA 232.2.3-1949 UDC 003.62:621.644:744 Reaffirmed, 1953 American Institute of Electrical Engineers The American Society of Mechanical Engineers J3,6k, Led 6, THE AMERICAN SOCIETY U n i t eEdn g i n e e r i nCge n t e r COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services OF MECHANICAL 345 E a s4 t7 tSht r e eNte w ENGINEERS Y o r k , N. Y. 10017 .ASME Y 3 2 - 2 . 3 47 0757b70 0074656 T m .FOREWORD T h i ss t a n d a r dh a sb e e nd e v e l o p e d by t h e ASA SectionalCommitteeonStanfor U s e onDrawínps,232. dardization of GraphicalSymbolsandAbbreviations T h e work of this committee is under the joint sponsorship of t h e American Instiof Mechanical Engineers, t u t e of Electrical Engineers and the American Society T h e s t a n d a r d i s t h e s e c o n d of a group of standards which represent a revision and expansion of an existing standard, American Standard Graphical Symbols for Use on Drawings in Mechanical Engineering, 232.2-1941. In preparing the list of pipe fittings, valves, and piping symbols for use on drawings, over one hundied companies and their representatives were consulted. Great care was exercised to avoid conflicts with the symbols being assembled by committees in allied fields. T h e 73 s y m b l s s h o w n are a minimum requirement. Many other piping symbols exist; for instance, such as those used in petroleum piping. Following apprpval of the sectional committee and the sponsor organizations, thisproposalwasapprovedbytheAmericanStandardsAssociationon,April 1949, and designated a s 232.2.3-1949. 8, OfficersofSectionalCommitteeonStandardization ofGraphical Symbols andAbbreviations for Use on Drawings, 232 S. L. Heard, Chairman W. J . Kunz, Vice-chairman W. H . Deacy, Sr., Secretary Persoanel of Subgroup No. 4 on Pipe F i t t i n g s and Valve Symbols of Subcommittee No. 1 on SymbolsforUse in MechanicalEngineering L. W; Benoit, Chairman, Gcn.&cy,ManufacturersStandardizationSociety of theValve and Fittings Industry, New York, N.Y. Bureau of Shipa, Code 350, U. S. Navy Department, Washington, D.C. Royal J . Cooney, john H. Cooney, Inca, Harrison, N.J. L . W. Kattelle, A s s t . Ch Eng:, Walworth Company, New York, N.Y. A. E. Spitzfaden, Asst. Ch Draftsman, Consolidated Edison Co. of New York, New York,N.Y. V. N . Zippler, Gibbs & Cox, lnc., New' York, N.Y. AMERICAN .NATIONAL STANDARD This s t a n d a r d i s o n e of more than 4000 approved 'as e i t h e r a USA Standard or a s an American Standard. It.become an American National Standard in October 1969 when the Institute changed its name to American National Standards Institute, Inc, Copyright, 1949, by T H E AMERICAN SOCIETY O F MECHANICALENGMEERS Prlntcd ln U.S.A. COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services A m c r i c m Scandud GRAPHICAL SYMBOLS FOR PIPE FITTINGS, VALVES, AND PIPING scope This standard has been developed for use on drawings. Architects, engineers, and confractors, by the use of t h e s t s y m b o l s on their plans, will have a standard method of indication for pipe fittings, valves, piping m.d allied itcms. Confusion in the interpretations of r e q u i r e m e n t s c a n t h u s be avoided. B a s i c Priaciples Clarity and simplicity were, considered paramount in the assembling of these symbols.Wheneverpossible,simplification in thedraftingwasprimarily considered and identification letters were used only when there was a question of a n error because of similarity of form. Only those symbols, about which there was nationwide consensus, were included. There are still maay symbols t h a t are used in a particular section but are not nationally recognized. COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services L17 W 0759670 007'ib58 3 W ASME Y 3 2 . 2 . 3 ' A'MERICAN STANDARD WELDED ELL 6 SPIGOT FLANGED SOLDERED I BUSHING "D- 3 2 CAP * 3 CROSS 3.1 REDUCING 3.2 STRAIGHT SIZE 4 CROSSOVER 6 ELBOW 5.1 &DEGREE 5.2 %DEGREE 5.3 TURNED DOWN i" i" k iP i" o+@+ 5.4 TURNED UP 5.5 BASE 5.6 DOUBLE BRANCH LL T 4 COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services 0" @-e- GRAPHICAL SYMBOLS FOR PIPE FITTINGS d V A L V H FLANGED 5.7 LONGRADIUS 5.8 REDUCING SCREWED LELL 6 SPlGOT r;" 4= 5.9 SIDE OUTLET (OUTLET DOWN) 5.10 SIDE OUTLET (OUTLET UP) 5.11 STREET 6 JO1 NT 6.1 CONNECTING PIPE U + 6.2 E X PANSI ON 7 LATERAL 8 ORIFICEFLANGE 9 REDUCING FLANGE 5 COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services WELMD SOLDERER AMERICAN STANDARD FLANGED )ELL L SPIGOT SCREWED WELDED SOLDERED IO PLUGS 10.1 BULL PLUG c 10.2 PIPE PLUG I I REDUCER 11.1 CONCENTRIC 1 1.2 ECCENTR IC +Y- 12 SLEEVE +" +--t I3 ?€E t 13.1 (STRAIGHT SIZE) 13.2 (OUTLET UP) 13.3- (0UTLE.T DOWN) 13.4 DOUBLE SWEEP -2 1 13.5 REDUCING 6. 13.6 SINGLE SWEEP) 41 TT COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services e---% +c--* ~- GRAPHICAL SYMBOLS FOR PIPE FITTINGS d VALVES FLANGED 13.7 SIDE OUTLET (OUTLET DOWN) SCREWED BE11 6 SPIGOT WELDED SOLDERED =% 13. SIDE OUTLET (OUTLET UP) I4 UN ON 4 I 6 ANGLE VALVE f- 15.1 CHECK 15.2 GATE IELEVATION) 15.3 GATE (PLAN) 15.4 GLOBE (ELEVATION) 15.5 GLOBE (P LAN) 15.6 HOSE ANGLE PSAME A 5 4" SYMBOL I6 AUTOMAT I C VALVE 16.1 BY-PASS 7 COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services 23.1 ASME Y 3 2 - 2 . 3 4 7 m 0757670 0074662 5 m AMERICAN STANDARD FLANGED SCREWED SELL b SPIGOT SAME AS SYMBOL 15<1 WELDED SOLOERE0 16.2 GOVERNOROPERATED 16.3 REDUCING I7 CHECK VALVE 17.1 ANGLE CHECK 17.2(STRAIGHT WAY) I8 COCK at- ISDIAPHRAGM VALVE 20 FLOAT VALVE 21 GATE V.ALVE +o" '21.1 21.2 ANGLE GATE SAME AS SYMBCLS 15.2 & 15.3 21.3 HOSE GATE SAME AS SYMBOL 23.2 *ALSO USED FOR GENERAL STOP VALVE SYMBOL W H E N AMPLIFIED BY .SPECIFICATION 8 COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services ._ GRAPHICAL SYMBOLS FOR PIPE FITTINGS LELL 6 SPIGOT FLANGED SCREWED P P 22.2 ANGLE GLOBE SAME AS SYMBOLS 15.4 6 15.5 22.3 HOSE GLOBE SAME AS SYMBOL 23.3 2 1.4 MOTOROPERATED 22 GLOBE VALVE 22.1 22.4 MOTOROPERATED W 23 HOSE VALVE "- 23.1 .ANGLE 23.2 GATE 23.3GLOBE 24 LOCKSHIELD VALVE -Pb- 25 QU I CK OPEN 1 NG VALVE 26 SAFETY VALVE 27 STOP VALVE SAME A S SYMBOL 9 COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services 21-1 6 VALVES WELDED SOLDERED m 0759670 007LIbb4 9 m 49 ASME Y 3 2 . 2 . 3 AMERICAN STANDARD AIR CONDITIONING 28 BRINE RETURN 29 BRINE SUPPLY 30 CIRCULATING CHILLED OR HOT-WATER FLOW 31 CIRCULATING CHILLED OR HOT-WATER RETURN 32 CONDENSER FATER FLOW 33 CONDENSER WATER RETURN ' 34 DRAIN 35 HUMIDIFICATIONLINE 36 MAUE-UP WATER 37 REFRIGERANT DISCHARGE 38 REFRIGERANT LIQUID 39 REFRIGERANT SUCTION HEAT I NG 40 AIR-RELIEF'LINE 41 BOILER BLOW OFF 42 COMPRESSEDAIR 43 CONDENSATE OR VACUUM PUMP DISCHARGE 44 FEEDWATER PUMPDISCHARGE 45 FUEL-OIL FLOW 46 FUEL-OIL RETURN . 47 FUEL-OIL TANK VENT ,48 HIGH-PRESSURE RETURN 49 HIGHYPRESSURE STEAM - 50 HOT-WATER HEATING RETURN 51 HOT-WATER HEATING SUPPLY . . COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services CH --" C H R- -- GRAPHICAL SYMBOLS FOR PIPING 52 LOW-PRESSURE RETURN """- 53 LOW-PRESSURE STEAM '54 MAKE-UP WATER """- 55 MEDIUM PRESSURE RETURb -+-I-+ 56 MEDIUM PRESSURE STEAM I PLUMB I NG 57 ACID WASTE 58 COLD WATER r I ACID """." 59 COMPRESSEDAIR 60 DRINKING-WATER FLOW 61 DRINKING-WATER RETURN "- 62 FIRELINE -F -0 F 63 GAS 64 HOT WATER 65 HOT-WATER RETURN 66 SOIL, WASTEOR LEADER (ABOVE GRADE) 67 SOIL, WASTEOR LEADER (BELOW GRADE) """- 68 VACUUM CLfANlNG -V 69 VENT """""- V PNEUMAT I C TUBES 70 TUBË RUNS SPRINKLERS 71 BRANCH AND HEAD 72 DRAIN 73- MAIN SUPPLIES COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services S P USAStandards of ParticularInterestto Designers.ArchitectsandDraftsmen TITLE O F STANDARD USA Standard Drafting Practices Y14.1-1957 Section 1 Size and Format Section 2 LineConventions.Sectioning and Lettering Y14.2-1957 Section 3 Projections Y14.3-1957 Section 4 Pictorial Drawing Y14.4-1957 Y14.5-1966 Section 5 Dimensioningand Notes Section 6 Screw Threads Y14.6-1957 Section 7 Gears.SplinesandSerrations . . . . . . . . . . . . . Y14.7-1958 In Preparation Section 8 Castings Section 9 Forgings Y14.9-1958 Section 10 Metal Stampings Y14.10-1959 Section 11 Plastics Y14.11-1958 Section 12 Die Castings . . . . . . . . . . . . . . . In Preparation In Preparation Section13 Springs. Helical and Flat Y14.14-1961 Section14 Mechanical Assemblies Section15ElectricalandElectronics Diagrams Y14.15-1966 Section16Tools.Dies and Gages In Preparation Section17Fluid PowerDiagrams ~14.17-1966 Section 18 Drawings for OpticalParts In Preparation In Preparation Section19EngineeringDrawings for PhotographicReproduction Illustrations for PublicationandProjection Y15.1-1959 Time SeriesCharts Y15.2-1960 Graphic Symbols for: Metallizing Symbols . . . . . . . . . . . . . . . . . Y32.12-1960 Welding Y32.3-1959 Plumbing Y32.4-1955 PipeFittings.Valves and Piping 232.2.3-1949(Reaffirmed1953) Heating.Ventilating and Air Conditioning 232.2.4-1949 Y32.7-1957 Use on Railroad Maps and Profiles 232.2.6-1950 (Reaffirmed 1956) Heat-Power Apparatus Y32.101967 FluidPower Diagrams ProcessFlow Diagrams in PetroleumandChemical Industries Y32.11-1961 Nondestructive Testing Symbols i Y32.17-1962 232.13-1950 Abbreviations for Use on Drawings Letter Symbols for: Hydraulics Y10.2-1958 Rocket Propulsion Y10.14-1959 Mechanics for Solid Bodies 210.3-1948 Structural Analysis 210.8-1949 Heat and Thermodynamics Y10.4-1957 Quantities Used in Electrical Science and Electrical Engineering Y10.5-1968 Physics 210.6-1948 Aeronautical Sciences . Y10.7-1954 Radio Y10.9-1953 Meteorology Y10.10-1953 Y10.11-1953 (Reaffirmed 1959) Acoustics Y10.12-1955 (Reaffirmed 1961) Chemical Engineering Y10.15-1958 Petroleum Reservoir Engineering-and Electric Logging Shell Theory Y10.16-1964 Guide for Selecting Greek. Letters Used as Letter Symbols for Engineering Mathematics Y10.17-1961 IlluminatingEngineering Y10.18-1967 Units Used in Electrical-Science and Electrical Engineering Y10.19-1967 Y32.18-1968 Symbols forMechanlcalandAcoustica1 Elements a s Used inschematic Diagrams AbbreviationsforScientific andEngineeringTerms 210.1-1941 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ~ I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .......................... ......... .. . . . . . . . . . . COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services