Professional 3 Inch Hydraulic Check Valves Preventing Backflow With FPM Gasket

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Professional 3 Inch Hydraulic Check Valves Preventing Backflow With FPM Gasket



Option of Hydraulic check valves


1. Connection:  Weld, Thread


2. SEAL: NBR, FPM,PTEF all according to FDA177.2600


3. Standard: DIN,SMS, RJT, IDF, ISO, 3A




Product Name: 3",SS316L Sanitary Check Valve, Thread Check Valve Preventing Backflow
Valve Body Material: SS304 or SS316L
Seal Material: EPDM
Max. Working Pressure: 10Bar
Opening pressure: 0.1-0.3bar
Max. Working Temperature: 120 degree C
Availably size: 1/2"-4" , DN10-D100
Availably connection: Thread,Weld
Availably standard: DIN,SMS,3A
Certificate: FDA,CE





1. Check valve is a valve that prevents the fluid from flowing back and ensures to flow in only one direction.


2. It can be used to prevent the flow less from returning avoid pipe-hammering


3. It is used in the food processing,beverages, wine, oil,cosmetics, pharmaceutical and chemical industries.



Operating Principle


The valve opens when the pressure of the fluid exceeds the pressure to spring, When the two pressures are equalised, the valve closes, A stronger counter – pressure also makes the valve close.





Donjoy manufacture products certified by 3A,CE,FDA and so on, according to GMP, EHEDG standard. Production strictly enforce ISO9001-2008 management system.





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Mr. Ms. Jasmine Zhuang
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Binhai economic and technological development zone=, Wenzhou, Zhejiang, China (Mainland)
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