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 What is the American valve standard?
What is the national standard of American valves?
American valves and related standards are shown in Table 1-1
Table 1-1 US National Standards (ANSI)
| Standard code name | The Standard name | 
| ANSIB1.1—1989 | Unified English thread (UN and UNR thread form) | 
| ANSIB2.1—1968 | Pipe thread (except for dry seal threads) | 
| ANSIB16.14—1991 | Steel pipe plug, bushing and locking nuts (with pipe thread) | 
| ANSIZ21.15—2009 | Gas equipment, manual gas valve for equipment connection valve and hose terminal valve | 
| ANSIZ21.21—2011 | Automatic valve for gas appliances | 
| ANSIZ21.22—2008 | Pressure reducing valve for hot water supply | 
| ANSI/ASSE1003—2009 | Energy requirements of the pressure reducing valve | 
| ANSI/ASSE1018—2001 | Separator seal start valve light water supply device | 
| ANSI/ASSE 1024—2008 | Double check valve type return protection device | 
| ANSI/ASSE1044—2001 | Separator seal start valve drain device type and electronic design type | 
| ANSI/ASSE1046—1990 | Thermal expansion decompression valve | 
| ANSI/ASSE1051—2009 | Gas inlet valve for sewage pipe system | 
| ANSI/ASSE1056—2001 | Inverted siphon return vacuum closing valve | 
| ANSJ/ASSE1069-2005 | Performance requirements for automatic temperature-controlled hybrid valves | 
| ANSIAWWAC111A21.11—2007 | Rubber pad joints for ductile iron pressure pipe and fittings | 
| ANSIAWWAC200—2005 | Steel pipes for waterways with 6in (150mm) and more than 6in | 
| ANSIAWWAC216—2007 | Polyolefin coating with special parts, connections and fittings for water supply steel pipe | 
| ANSI/AWWAC500—2009 | Gate valve is used for the drainage system | 
| ANSIAWWAC501—1992 | cast iron gate valve | 
| ANSI/AWWAC504—2010 | Rubber pad-sealed butterfly valve | 
| ANSI/AWWAC507—2011 | 6~48in (150~1200mm) ball valve | 
| ANSI/AWWAC508—2009 | 2~24in (50~600mm) rotary check valve for water supply system | 
| ANSI/AWWAC509—2009 | Elastic seat gate valve for feed water | 
| ANSI/AWWAC510—2007 | Double check valve return protection assembly | 
| ANSI/AWWAC512—2007 | Air valve, air / vacuum and mixed air valves for water supply unit | 
| ANSI/AWWAC517—2009 | Soft-sealed cast-iron eccentric stopcock | 
| ANSI/AWWAC540—2002 | Power drive device valves and gate valves | 
| ANSI/AWWAC550—2005 | Protective internal coating for valves and fire hydrants | 
| ANSI/AWWAC800—2005 | Underground pipe valves and fittings | 
| ANSI/IASNGV4.6—1999 | Manual control valve for natural gas assembly system | 
| ANSI/IASNGV4.7—1999 | Automatic pressure control valve for natural gas sub-assembly system | 
| ANSI/ISA75.01.01—2007 | Flow balancing is used for the dimensional control valve | 
| ANSI/ISA75.02.01—2008 | The Control Valve Capacity Test Procedure | 
| ANSI/ISA75.04—1995 | Structural dimensions of the control valve (150,300 and 600) | 
| ANSI/ISA75.05.01—2005 | Control valve terms | 
| ANSI/ISA75.08.01—2007 | Structural size of integral flange connection ball control body (125,150,250,300 and 600) | 
| ANSI/ISA75.08.02—2009 | Structural dimensions of disconnected control valves (150,300 and 600) | 
| ANSI/ISA75.08.03—2007 | Structural dimensions of the spherical control valve for bearing welded ends and spiral ends | 
| ANSI/ISA75.08.04—2007 | Structural dimensions of spherical control valve | 
| ANSI/ISA75.08.05—2007 | Structural dimensions of the control valve (150,300,600,900,1500 and 2500) | 
| ANSI/ISA75.08.06—2007 | Structural dimensions of flange connected ball control valve body (900,1500 and 2500) | 
| ANSI/ISA75.08.07—2007 | Structural size of the independent flange ball control valve | 
| ANSI/ISA75.08.09—2010 | Structural size of control valve (150,300 and 600) | 
| ANSI/ISA75.11.01—1985(R2002) | The inherent flow characteristics and adjustable range of the control valve | 
| ANSI/ISA75.14—1993 | Structural size of butt welding connection ball control valve | 
| ANSI/ISA75.15—1994 | Face-to-face size of butt-welded spherical control valve (ANSI grade 150,300,600,900,1500,2500) | 
| ANSI/ISA75.19.01—2007 | Hydrostatic test of the control valve | 
| ANSI/ISA75.22—1999 | Structural dimensions of flange connection spherical angle control valve body | 
| ANSI/ISA75.25.01—2010 | Step pper control valve reaction measurement test procedure | 
| ANSI/ISA93.00.01—1999 | Standard method for external leakage assessment of manual and automatic opening and closing valves | 
| ANSI/FCI69-1—2004 | Standard for the pressure rating of the drain valve | 
| ANSI/FCI70-2—2006 | Control the valve seat leakage | 
| ANSI/FCI74-1—1991 | Spring-loaded lift diaphragm check valve | 
| ANSI/FCI85-1—2003 | Reservoir valve product test | 
| ANSI/FCI87-1—2009 | Classification and operation principle of the water trap | 
| ANSI/FCI87-2—2008 | Standard of spring formwork drive control valve | 
| ANSI/FCI91-1—2010 | Qualification criteria for controlling the sealing of the valve | 
| ANSI/UL125—2011 | Safety standards for anhydrous ammonia and liquefied gas valves (except safety valves) | 
| ANSI/UL132—2010 | Safety standards for safety valves for anhydrous ammonia and liquefied petroleum gas | 
| ANSI/ASSE1044—2001 | Separator seal start valve drain device type and electronic design type | 
| ANSI/ASSE1046—1990 | Thermal expansion decompression valve | 
| ANSI/ASSE1051—2009 | Gas inlet valve for sewage pipe system | 
| ANSI/ASSE1056—2001 | Inverted siphon return vacuum closing valve | 
| ANSJ/ASSE1069-2005 | Performance requirements for automatic temperature-controlled hybrid valves | 
| ANSIAWWAC111A21.11—2007 | Rubber pad joints for ductile iron pressure pipe and fittings | 
| ANSIAWWAC200—2005 | Steel pipes for waterways with 6in (150mm) and more than 6in | 
| ANSIAWWAC216—2007 | Polyolefin coating with special parts, connections and fittings for water supply steel pipe | 
| ANSI/AWWAC500—2009 | Gate valve is used for the drainage system | 
| ANSIAWWAC501—1992 | cast iron gate valve | 
| ANSI/AWWAC504—2010 | Rubber pad-sealed butterfly valve | 
| ANSI/AWWAC507—2011 | 6~48in (150~1200mm) ball valve | 
| ANSI/AWWAC508—2009 | 2~24in (50~600mm) rotary check valve for water supply system | 
| ANSI/AWWAC509—2009 | Elastic seat gate valve for feed water | 
| ANSI/AWWAC510—2007 | Double check valve return protection assembly | 
| ANSI/AWWAC512—2007 | Air valve, air / vacuum and mixed air valves for water supply unit | 
| ANSI/AWWAC517—2009 | Soft-sealed cast-iron eccentric stopcock | 
| ANSI/AWWAC540—2002 | Power drive device valves and gate valves | 
| ANSI/AWWAC550—2005 | Protective internal coating for valves and fire hydrants | 
| ANSI/AWWAC800—2005 | Underground pipe valves and fittings | 
| ANSI/IASNGV4.6—1999 | Manual control valve for natural gas assembly system | 
| ANSI/IASNGV4.7—1999 | Automatic pressure control valve for natural gas sub-assembly system | 
| ANSI/ISA75.01.01—2007 | Flow balancing is used for the dimensional control valve | 
| ANSI/ISA75.02.01—2008 | The Control Valve Capacity Test Procedure | 
| ANSI/ISA75.04—1995 | Structural dimensions of the control valve (150,300 and 600) | 
| ANSI/ISA75.05.01—2005 | Control valve terms | 
| ANSI/ISA75.08.01—2007 | Structural size of integral flange connection ball control body (125,150,250,300 and 600) | 
| ANSI/ISA75.08.02—2009 | Structural dimensions of disconnected control valves (150,300 and 600) | 
| ANSI/ISA75.08.03—2007 | Structural dimensions of the spherical control valve for bearing welded ends and spiral ends | 
| ANSI/ISA75.08.04—2007 | Structural dimensions of spherical control valve | 
| ANSI/ISA75.08.05—2007 | Structural dimensions of the control valve (150,300,600,900,1500 and 2500) | 
| ANSI/ISA75.08.06—2007 | Structural dimensions of flange connected ball control valve body (900,1500 and 2500) | 
| ANSI/ISA75.08.07—2007 | Structural size of the independent flange ball control valve | 
| ANSI/ISA75.08.09—2010 | Structural size of control valve (150,300 and 600) | 
| ANSI/ISA75.11.01—1985(R2002) | The inherent flow characteristics and adjustable range of the control valve | 
| ANSI/ISA75.14—1993 | Structural size of butt welding connection ball control valve | 
| ANSI/ISA75.15—1994 | Face-to-face size of butt-welded spherical control valve (ANSI grade 150,300,600,900,1500,2500) | 
| ANSI/ISA75.19.01—2007 | Hydrostatic test of the control valve | 
| ANSI/ISA75.22—1999 | Structural dimensions of flange connection spherical angle control valve body | 
| ANSI/ISA75.25.01—2010 | Step pper control valve reaction measurement test procedure | 
| ANSI/ISA93.00.01—1999 | Standard method for external leakage assessment of manual and automatic opening and closing valves | 
| ANSI/FCI69-1—2004 | Standard for the pressure rating of the drain valve | 
| ANSI/FCI70-2—2006 | Control the valve seat leakage | 
| ANSI/FCI74-1—1991 | Spring-loaded lift diaphragm check valve | 
| ANSI/FCI85-1—2003 | Reservoir valve product test | 
| ANSI/FCI87-1—2009 | Classification and operation principle of the water trap | 
| ANSI/FCI87-2—2008 | Standard of spring formwork drive control valve | 
| ANSI/FCI91-1—2010 | Qualification criteria for controlling the sealing of the valve | 
| ANSI/UL125—2011 | Safety standards for anhydrous ammonia and liquefied gas valves (except safety valves) | 
| ANSI/UL132—2010 | Safety standards for safety valves for anhydrous ammonia and liquefied petroleum gas | 
| ANSI/UL144—2010 | Safety standards for LPG pressure regulating valve | 
| ANSI/UL193—2008 | Alarm valve is used for fire-fighting facilities | 
| ANSI/UL 312—2010 | Check valve is used for fire-fighting facilities | 
| ANSI/UL668—2008 | Water belt valve for fire protection facilities | 
| ANSI/UL753—2009 | Alarm accessories for automatic water supply control valve for fire fighting | 
| ANSI/UL842—2011 | Valve for flammable liquid | 
| ANSI/UL1002—2006 | Electric valve for classifying dangerous places | 
| ANSI/UL1468-2007 | Direct acting relief and pressure control valves for fire fighting facilities | 
| ANSI/UL1478—2008 | Fire-fighting water dish pressure relief valve | 
| ANSI/UL1486—2010 | Safety standards for quick start to pipe valve devices for fire fighting facilities | 
| ANSI/UL1739—2007 | Pilot-type hydraulic control valve for fire protection | 
| ANSI/IEEE382—2006 | Qualification of the actuator of power operating valve components with safety-related functions for nuclear power plants | 
| ANSI/IEEE1290—2005 | Guide for motor application, protection, control and test of electric control valves in nuclear power station | 
| ANSI/ARI 750—2007 | Refrigerant constant temperature expansion valve | 
| ANSI/ARI770—2007 | Refrigoling pressure regulating valve | 
| ANSI/ASHRAE17—1998 | Test method for capacity classification of cooling safety valve for temperature regulation | 
| ANSI/ASHRAE158.1—2012 | Test method for the capacity of the cooling solenoid valve | 
| ANSI/IIAR3—2005 | Ammonia refrigerator valve | 
| ANSI(NFPA)T3.21.4R2—200C | Pneumatic valve NFPA / T2.6.1 R2-2000 supplement; pressure rating of hydraulic component to test fatigue and determine the pressure of hydraulic pneumatic valve containing metal housing | 
| ANSI/(NFPA)T3.21.8—1990 | Measurement of the pneumatic-hydraulic reaction time directly controls the valve |