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Model No: S00221
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Product: Check Valve
Operating Principle: The valve opens when the pressure of the fluid in the exceeds the pressure exerted by the pump spring. When the two pressures are equalised, the valve closes.
A stronger counter-pressure allows the valve to close.
Applications:A check valve is a valve that prevents the fluid from flowing back and ensures that it flows in only one direction. It can be used to prevent the loss of prime of the pump and to avoid pipe-hammering. It is used in the food-processing, beverages, wine-making, oil-making, cosmetics, pharmaceutical and chemical industries.
Technical Data:
Connecting Ends Threaded
Standard DIN, SMS, 3A, ISO, IDF, RJT, BS
Available Sizes DN25-DN100, 1"-4"
Metal Material Parts in contact with fluid 304, 316L (DIN 1.4301, 1.4304) Forging
Other parts 304
Seal Material Options Silicone, EPDM, FPM, NBR
Pressure Max. working pressure 10 bar 
Opening pressure 0.08 bar
Surface Finish Internal  surface Ra ≦ 0.8 μm
External surface Ra ≦ 1.6 μm
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