Wafer Dual Plate Check Valve DN40~DN600, Brand Name : HHV

We are offering wafer dual plate check valve.
The products are under ce certificate valve is used for preventing the back-going of medium in pipelines and equipments, and the pressure of medium will bring the result of opening and closing automatically.when the medium is back-going, valve disc will automaticaly closed to avoid accidents. Design standard:api 594,api 6d
face to face :api594,api6d
pipe flange :ansi b16.5 ,api 605,asme b16.47
testing & inspection:api 598
pressure- temperature rating: ansi b 16.34
type of connection: wafer materials 1 body gg25
2 disc ss316
3 stem ss410
4 spring ss304
5 washer ptfe
6 gasket nbr
7 hex nut a193 b.