High quality/High cost performance Stainless Steel 316L Hygienic SMS Weld Non Return Valve

Hot Sale Stainless Steel 316L Sanitary DIN weld non return valve
 

Work Principle:

    Check valve is a type of valve which open or close the valve disc rely on the medium flow itself.The check valve disc will open when the pressure of stem bottom exceed the stem above and the spring.The check valve disc will close when the two pressure are equalled.So that the flow goes one way in the pipeline,and prevent the fluid flowingback,avoid the accidents.

   Various standards of valves can be provided to clients:DIN,3A,SMS,ISO/IDF,BS/RJT,ASME/BPE etc.

Technical Data:

Material:1.Contact with the product components-304/304L/316L,Forging

            2.Material No contact with the product components-304

Sealing material:1.Standard-EPDM(Working Temperature:-20~+135°C)

                           2.Option- SILICONE ( Working Temperature:-50+180°C)

                                             VITON ( Working Temperature:-30+230°C)

Surface treatment:1.Inside surface treatment (Ra≥0.4~0.8um)

                               2.Surface treatment (Ra≥0.8~1.6um)