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Standard CodeANSI Standard NameANSI A126 Gray cast iron valves, flanges, and fittingsANSI A181 Steel flanges and forged fittings, generally; valves and parts made of forged materialsANSI/ASTM A217M-2004 Specification for castings of martensitic stainless steel and alloy steel for high-temperature pressure servicesANSI B1.1-1989 Unified British threads (UN and UNR thread forms)ANSI B1.5-1988 Trapezoidal threads (ACME)ANSI B1.8-1988 Short-taper trapezoidal threads (ACME)ANSI B1.20.1-1983 Pipe threads – General purposeANSI B1.20.3-1976 Sealed pipe threadsANSI B2.1-1968 Pipe threads (other than dry-sealed threads)ANSI B16.1-1988 Cast iron pipe flanges and flanged fittingsANSI B16.5-1992 Flanges and flange fittingsANSI B16.10-1996 Valve face lengthsANSI B16.11-1991 Forged pipe fittings with socket weld and threaded connectionsANSI B16.14-1991 Steel pipe plugs, bushings, and lock nuts (with pipe threads)ANSI B16.20-1992 Channel steel flanges and ring metal gasketsANSI B16.21-1978 Non-metallic flat gaskets (for pipe flanges)ANSI B16.24-1991 Bronze flanges and flanged fittings, CL150 and CL300ANSI B16.25-1992 Butt-weld endsANSI B16.34-1996 Flanges, threaded, and welded-end valvesANSI B16.42-1987 Forged cast iron pipe flanges and fittingsANSI B18.2.2-1987 Square nuts and hex nuts (British series)ANSI B18.5-1985 Round head screwsANSI B31.3-1990 Piping in chemical plants and refineriesANSI B36.10M-1985 Welded pipes and seamless steel pipesANSI B46.1-1985 Surface finish (surface roughness, waviness)ANSI B95.1-1985 Terms for pressure reducing devicesANSI/AWWA C504-1994 Butterfly valves with rubber gasket sealsANSI/AWWA C 509-2001 Elastic seated gate valves for water supplyANSI/FCI 69-1-1989 Standard for pressure ratings of steam trapsANSI/FCI 70-2-1998 Controlling seat leakage in control valvesANSI/FCI 85-1-1989 Testing of steam trap productsANSI/FCI 87-1-1994 Classification and operating principles of steam trapsANSI/FCI 87-2-1990 Power signal standards for spring-loaded control valvesANSI/FCI 91-1-1997 Quality standards for sealing in control valvesANSI/UL 132-2002 Safety standards for safety valves used with anhydrous ammonia and liquefied petroleum gasANSI/UL 144-2001 Safety standards for pressure regulating valves used with liquefied petroleum gasANSI/UL 753-1996 Alarm accessories for automatic water supply control valves used in fire protection systemsANSI/API 527-1991 Seat tightness of safety valvesANSI/API 608-2002 Metal ball valves with butt-weld and flanged endsANSI/ASSE 1003-1995 Pressure reducing valves for domestic water supply systemsANSI/ASSE 1046-1990 Thermal expansion pressure reducing valvesANSI/ASTM F 1508-1997 Specification for angle-type pressure reducing valves used in steam, gas, and liquid applicationsANSI T 3.5.14 R1-1997 Hydraulically actuated – Direct-acting valves – Method for determining boundary characteristicsANSI(NFPA)T3.21.4 R2-2000 Pneumatic valvesNFPA/T2.6.1 R2-2000 Supplement: Pressure ratings for hydraulic components; Testing fatigue and determining pressures for hydraulic and pneumatic valves with metal housingsANSI/(NFPA) T 3.21.8-1990 Pneuhydraulics – Measurement of response time – Direct-acting valvesANSI Z21.22a Addenda-1990 Safety valves and gas shut-off systems for hot water supply systems – SupplementsANSI Z21.22-1986 Safety valves and gas shut-off systems for hot water supply systemsANSI Z 21.22a-1999 Pressure reducing valves and vacuum pressure reducing valvesANSI Z 21.22b-2001 Pressure reducing valves for hot water supply systemsANSI/ASHRAE 17-1986 Test method for rated capacity of constant temperature refrigerant expansion valvesANSI/ARI 750-1987 Refrigerant constant temperature expansion valvesANSI/ISA 75.01.01-2002 Flow equations for size-controlled valvesANSI/ISA 75.08.01-2002 Face-to-face dimensions of integral flanged ball control valve bodies (types 125, 150, 250, 300, and 600)ANSI/ISA 75.08.02-2003 Dimensions between the faces of flangeless control valves (classes 150, 300, and 600)ANSI/ISA S 75.08.03-2001 Face-to-face dimensions of socket-welded and threaded-end ball control valvesANSI/ISA S 75.08.04-2001 Face-to-face dimensions of butt-welded-end ball control valvesANSI/ISA 75.08.05-2002 Face-to-face dimensions of end-butted ball control valves (types 150, 300, 600, 900, 1500, and 2500)ANSI/ISA 75.08.06-2002 Face-to-face dimensions of flanged ball control valve bodies (types 900, 1500, and 2500)ANSI/ISA S 75.08.07-2001 Face-to-face dimensions of independently flanged ball control valvesANSI/ISA S 75.15-1993 Face-to-face dimensions of butt-welded end ball control valves (ANSI classes 150, 300, 600, 900, 1500, 2500)ANSI/ISA S 75.19.01-2001 Hydrostatic testing of control valvesANSI/IEEE 1290-1996 Guide for application, protection, control, and testing of electric control valve motors in nuclear power plants