Check valve is to rely on the media itself and automatically open the valve, closed valve, used to prevent the media back to the valve, also known as check valve, counter valve and back pressure valve.
Metal seal or rubber seal.
With the improvement of technologies of valve, valve areas continuously expanding, the corresponding valves standard is more and more indispensable. Valve industry has entered a period of innovation, product categories require not only new replace, internal management of enterprises also need to be based on industry standards for further reform.
Face to face per ANSI B 16.10
Flange ends dimension ANSI B 16.5/ANSI B 16.47
Final inspection tests to API598.
WCB CF8 CF3 GR4A Hastelloy C etc.
Inside and outside epoxy coating
Applicable temperature: -196-540 different raw material for different work temperature
Applicable medium: Water, oil, gas and other causticity medium (different raw material for different medium)
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