China Wafer Type Double Flanged Double Disc Rtj End Check Valve

Product features
Check valve, also known as reflux valve or non-return valve, its function is to prevent media backflow in the pipeline. The bottom valve of the pump suction close also belongs to the check valve category. The opening and closing parts are opened or closed by the flow and force of the medium to prevent the backflow of the medium from being called a check valve. Check valve belongs to automatic valve. Check valve is mainly used in the pipe of one-way flow of medium, only the medium is allowed to flow in one direction to prevent accidents.
To API594
Face to face per ANSI B 16.10
Flange ends dimension ANSI B 16.5/ANSI B 16.47
Final inspection tests to API598.
Materials
WCB CF8 CF3 GR4A Hastelloy C etc.
Corrosion protection
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)
about this product:
H46H/H46W/H46X-10-40C/P/R.
INSPECTION
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Design and manufactureAPI594,API 6D,JB/TB8937Face to face and end to endAPI594,API6D,DIN3202,JB/T8937;Pressure-temperature ratingASME B16.34,DIN2410,GB/T9124,HG20625,SH3406,JB/T74Inspection and testAPI598,JB/T9092;Pipe flangeJB/T74~90,JB/T9112-9124,HG20592~20635,SH3406,ASME B16.5,DIN2543~2548,GB/T13402,API605,ASME B16.47.