wafer type double plate check valve (wafer type check valve,spring double plate check valve)
Wenzhou Zhengte Valve Co., Ltd. [China] 
Detailed Product Description
wafer type double plate check valve (wafer type check valve,spring double plate check valve)
Thread type:BSPT,BSP,NPT,DIN259/2999
This valve as a result of composition and so on valve body, valve petal, valve cover. The valve petal opens under the hydraulic pressure function, and limits on valve petal outside. When the outlet pressure is bigger than the inlet pressure, the valve petal on closed in the hydraulic pressure and under the spring strength function stopes the fluid to return flows.
