Design code
Design Criteria：JB/T5298,API 6D,ASME B16.34
Structure length：GB/T12221,JB/T5298,API 6D,ASME B16.10,GB/ T12221
Connection：GB/T9124.1,JB/T79,ASME B16 5, ASME B16.47 ,MSS SP44
Test and inspection：GB/T26480,API 6D,API 598
Pressure-Temperature：
Parallel single gate gate valve has several structural forms, such as diversion hole type, no diversion hole type, regulation type and so on, suitable for natural gas, oil, chemical industry, urban construction, environmental protection and other industries, among which the sulfur resistance series products are suitable for hydrogen sulfide medium, fast flow rate, many impurities, serious corrosion of natural gas long transmission pipeline.
1.The valve body has two structures: casting and welding. Among them, the short type without diversion orifice plate gate valve adopts welded structure, short structure length and light weight, especially suitable for requiring light weight devices.
2.Floating valve seat structure, so that the valve inlet and outlet bidirectional can be sealed.
3.Floating valve seat structure, so that the valve inlet and outlet bidirectional can be sealed.
4.Hard sealing structure of the valve, sealing surface stacking cobalt-based carbide carbide, hardness of HRC 42-55, to ensure the reliability of the seal.
5.Valves with diversion hole structure, no matter fully open or closed state, the gate and valve seat are always in contact with each other, the sealing surface is not directly washed by the medium, so as to prolong the service life.
6.The fire resistance design of the valve is subject to the API 6FA and API 607 standards, corresponding to the valves used for hydrocarbon flow liquids, and oil and gas pipelines. The implementation of this standard can meet the fire prevention requirements.
7.When the valve is fully open, the channel is straight pipeline, the flow resistance series and pressure loss are very small, and the pipeline can be cleaned by hairball.
8.The valve is equipped with automatic pressure relief protection device to ensure safe use.
9.Fully closed structure, good protective performance, can be used all weather.