The relevant industry standards of various types of gate valves are widely used in the petroleum, chemical, power station, ship, water system and gas industries. The gate valves used in some special industries should not only comply with the national standards, but also strictly implement the relevant industry standards to ensure the healthy, safe and efficient use of gate valves in the industry, Relevant industry standards are as follows: JB/T 5298-91 Steel Flat Gate Valves for Pipelines JB/T 9092-1999 Inspection and Test of Valves JB/T 2769-2010 Relevant industrial standards for various types of gate valves High pressure threaded flanges for full gate valve parts JB/T 1741-2010 Gate valve parts Centering JB/T 1726-2010 Gate valve parts Disc cover and split ring JB/T 1703-2010 Gate valve parts Bushing JB/T 3595-2002 General requirements for power station gate valves JB/T 5208-2010 Gate valve parts Spacer ring JB/T 1700-2010 Gate valve parts Screw Parent Bolt and Plug JB/T 1712-2010 Packing and Gasket for Gate Valve Parts - 2226KB JTJ 308-2003 Design Specification for Marine Gate Valve JB/T 6902-2010 Liquid Penetrant Testing for Gate Valve JB33/T 730-2009 Quality Requirements for Copper Gate Valve of Gas Pipeline JB/T 2778-2010 Temperature Marking for High Pressure Pipe Fittings and Fasteners of Gate Valve Parts JB/T 5211-2010 Gate Valve Parts Gate Valve Seat JB/T 7760-2010 Gate Valve Filling Specification for Material Sealing Test JB/T 7248-2010 Technical Conditions of Low Temperature Steel Castings for Gate Valves JB/T 2772-2010 High Pressure Blind Plates for Gate Valve Components JB/T 1718-2010 Gasket and Stop Gasket for Gate Valve Components JB/T 10768-2007 Electric Gate Valves for Air Conditioning Water System JB/T 6440-2010 Radiographic Testing of Die Cast Steel Parts for Gate Valves JB/T 93-2010 Wrench Qualification of Handle and Handwheel EJ/T 531-2001 Safety Class Gate Valve Actuators for Nuclear Power Plants JB/T 5300-2010
Guide for Selection of Industrial Gate Valve Materials JB/T 450-2010
Technical Conditions for Forged Angle High Pressure Gate Valves YB/T 5136-1993
Chrome Vanadium Spring Steel Wire for Gate Valve YB/T 5102-1993 Oil Quenched Tempered Carbon Spring Steel Wire for Gate Valve SN/T 1455-2004 Inspection Procedures for Outlet Gate Valve SHS01030-92 (English Version) Maintenance and Repair Procedures for Gate Valve SH/T 3064-2003 Selection of Petrochemical Steel Universal Gate Valves Inspection and Acceptance SH/T 3064-2003 Application of Petrochemical Steel Ultrasonic Spraying Technology in Hard Seal Pneumatic Ball Valves In many severe process environments, there are many requirements for the pneumatic ball valves used. It is necessary to require higher service temperature and more wear resistance, The application of supersonic spraying technology in hard sealed pneumatic ball valve is widely used in actual use. It is important to improve the hardness of the ball and valve seat. There are many ways to improve the surface hardness of the metal sealed pneumatic ball valve, each with different characteristics,

What is the internal structure of plastic coated pneumatic butterfly valve
The most fundamental tool that today's increasingly prosperous technology relies on is the transmission of information, which cannot be transmitted without lines. Some people may say that there are electromagnetic waves, yes, but electricity generates magnetism. The plastic coated pneumatic butterfly valve is the basic equipment for electric transmission. What is the structure of this pneumatic butterfly valve? It is mainly divided into internal structure and external structure.
Internal structure: the internal structure is the inner layer of this pneumatic butterfly valve. The inner layer needs special treatment. First of all, the material selection of the inner layer is exquisite. The inner layer of plastic coated pneumatic butterfly valve shall be made of the same material as the outer layer. Among these insulated metals, one called stainless steel is easy to use, fair in price and effective in use. In addition, galvanized hoses will also be used, and finally special insulation treatment will be taken.
External structure: the outside is the outer layer. Literally, we can find that the outer layer of plastic coated pneumatic butterfly valve is actually just a layer of plastic. But this is not ordinary plastic, but PVC plastic, which has the function of anti ultraviolet and anti-aging. Of course, it also has the function of insulation. This pneumatic butterfly valve is also very popular because of its insulation characteristics, which can maintain circuits and cables.