The pressure bearing parts of the valve are cast by precision casting process, the surface quality is beautiful, no surface defects such as sticky sand and cold partition; the internal quality is stable, and there are no inherent defects such as looseness, blisters and cracks.
The swing-type check valve adopts a built-in rocker swing type structure. All the opening and closing parts of the valve are installed inside the valve body and do not penetrate the valve body, except that the middle flange part is sealed with a sealing gasket or a sealing ring. There is no leak point, which eliminates the possibility of valve leakage.
The swing-type stop valve has a spherical connection structure at the connection between the rocker arm and the valve flap, so that the valve flap has a certain degree of freedom in the range of 360 ° C, and has appropriate micro-position compensation.
The sealing surface of the rotary check valve sealing pair is made of alloyed steel (13Cr) or cemented carbide Stellite6, which is used in fine-grained media and does not wear quickly due to erosion.
1.Size :2"~32" (DN50~DN800)
2.Working Pressure :150Lb~2500Lb
3.Working Temperature :-20°C~425°C
4.Suitable Medium:Water,Oil,Gas and Steam.
6.Casting Material :WCB,WCC,C6,C12,LCB,LCC,CF8,CF3,CF8M,CF3M
A.Design&Manufacture standard: API 594,BS 1868
B. Face to face: ASME B16.10. DIN3202.
C.Pressure&Temperature standard: ASME B16.34
D.Flange standard: ASME B16.5, ASME B16.47. JIS B2220. DIN 2543-2550
E:Test&Inspect standard: API 598, API 6D.