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What is the standard of valves？
What are the valve for valves？
International valves and related standards are shown in Table 1-1.
Table 1-1 International Standards (ISO)
| Standard code name | The Standard name |
| ISO4126-1—2006 | Overvoltage protection safety device, Part 1: Safety valve |
| ISO4126-2—2009 | Overvoltage protection safety devices- -Part 2: explosion-proof plate safety equipment |
| ISO4126-3—2009 | Overvoltage protection safety devices- -Part 3: Combined explosion-proof board safety equipment and safety valves |
| ISO4126-4—2009 | Overvoltage protection safety devices- -Part 4: Hydraulic control relief valves |
| ISO4126-5—2009 | Overvoltage protection safety devices-Part 5: Controlled safety pressure relief system (CSPRS) |
| ISO4126-6—2004 | Overvoltage protection safety devices- -Part 6: Application, selection and installation of explosion-proof plate safety equipment |
| ISO4126-7—2009 | Overvoltage protection safety devices- -Part 7: General data |
| ISO5208—2008 | Pressure test for metal valves for industrial valves |
| ISO5209—1977 | Mark the valves for industrial use |
| ISO5210—1991 | Industrial valve and one multi-rotary valve drive device is connected |
| ISO5211—2001 | Part of the industrial valve rotary drive device connection |
| ISO5752—1982 | Structural length of the metal valves in the flange piping system |
| ISO5781—2000 | Assembly surface of hydraulic transmission pressure reducing valve, sequence valve, unloading valve, throttle valve and check valve |
| ISO5996—1984 | cast iron gate valve |
| ISO6002—1992 | A bolted steel gate valve |
| ISO6552—2009 | Automatic steam drain valve term definition |
| ISO6553—1980 | Automatic steam trap sign |
| ISO6554—1980 | Flange connection automatic steam trap structure length |
| ISO6704-1983 | Automatic steam trap classification |
| ISO6708—1995 | Definition and selection of pipe element DN (nominal size) |
| ISO6892.1—2009 | Tensile testing for metallic materials — Part 1: room temperature |
| ISO6892.2—2011 | High-temperature tensile tests for metal materials- -Part 2: Test methods |
| ISO6948—1981 | Automatic steam trap product test and working characteristics test |
| ISO7005-1—2011 | Metal flanges — Part I; steel flanges |
| ISO7005-2—1988 | Metal flange I, part 2, cast iron flange |
| ISO7005-3—1988 | Metal flange I part III; copper and copper alloy flange |
| ISO7121—2006 | Falled-connected steel ball valve |
| ISO7259—1988 | Underground cast iron gate valve mainly operated by a wrench |
| ISO7268—1984 | Definition and selection of pipe component PN (nominal pressure) |
| ISO7841-1988 | Test method for measuring air leakage capacity of automatic steam trap |
| ISO7842-1988 | Test method for measuring the displacement of automatic steam drain valve |
| ISO8233-1988 | Test method for torque testing of thermoplastic valves |
| ISO8242—1989 | Basic size of polypropylene valve for pressure pipe, meter-made series |
| ISO8659—1989 | Hot plastic valve fatigue strength, test method |
| ISO9393-1—2004 | Pressure test methods for thermoplastic valves- -Part 1: General Provisions |
| ISO9393—2—2005 | Pressure test methods and requirements for thermoplastic valves- -Part 2: Test conditions for polyethylene, polypropylene, unplasticized polyvinyl chloride and polyvinylidene valves |
| ISO10400—1993 | Oil and natural gas industry- -the performance formula and calculation of casing, oil pipe, drill pipe and pipeline pipe |
| ISO10417—2004 | Design, assembly, operation and repair of underground safety valve systems for the oil and gas industry |
| ISO10432—2004 | Oil and natural gas industry drop hole equipment underground safety valve equipment |
| ISO10434—2004 | Steel gate valve for petroleum, petrochemical and related industrial bolts |
| ISO10474—1991 | Steel and Steel products- -Inspection documents |
| ISO10497—2010 | Valve test-Requirements for refractory type test |
| ISO10631—1994 | General metal butterfly valve |
| ISO12149—1999 | Universal steel stop valve for bolted valve cap |
| ISO12238—2001 | Measurement of control valve transition time |
| ISO13623—2009 | Oil and natural gas industrial pipeline delivery system |
| ISO14313—2009 | Oil and gas industry-pipeline delivery system-pipeline valves |
| ISO14723—2009 | Oil and gas industry-pipeline transmission system-submarine pipeline valves |
| ISO15590-3—2004 | Intake elbows, fittings and flanges for oil and gas industry pipeline delivery systems-Part 3: flanges |
| ISO/TS15649—2004 | Oil and gas industrial pipelines |
| ISO15848-1—2006 | Industrial Valves-Measurement, Testing and Qualification Certificate Part I System test classification and quality approval procedures for type testing |
| ISO15848-2—2006 | Industrial valve 1 measurement, test and qualification certificate part of the acceptance test of products |
| ISO16135—2006 | Industrial valves, thermoplastic material, ball valves |
| ISO16136—2006 | Industrial valve thermoplastic material butterfly valve |
| ISO16137—2006 | Check valve of thermoplastic material for industrial valves |
| ISO16138—2006 | Industrial valve thermoplastic material diaphragm valve |
| ISO16139—2006 | Industrial valve thermoplastic material gate valves |
| ISO17292—2004 | Metal ball valves for petroleum, petrochemical and related industrial use |
| ISO21787—2006 | Thermoplastic material stop valve for industrial valves |
