Model NO.: check valve
Application: Industrial Usage, Water Industrial Usage, Household Usage
Size: Dn25-Dn100, 1′′-4′′
Connection: Weld, Thread
Trademark: DONJOY
Transport Package: Standard Exporting Package
Specification: CE, ROTHS, SGS
Origin: Wenzhou, Zhejiang, China
HS Code: 8481300000
Dn25-Dn100 316L Welding Stainless Steel Three Piece Check Valve 

Applications:
Check valve is a valve that prevents the fluid from flowing back and ensures to flow in only one direction.
It can be used to prevent the flow less from returning avoid pipe-hammering.
It is used in the food-processing, beverages, wine, oil, cosmestics, 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.

Design and features:
Easy disassemble
Small-size construction
DIN11851 connections(standard)

Specification
Sizes DN40/1.5'' to DN200/8''
Max pressure: 10bar
Opening pressure 0.3bar(DN25)
 0.2ar(DN32/40)
 0.1bar(DN50/100)
Working temperature -10 degree c to 120 degree c(EPDM)
Connnections: weld, thread, clamp, DIN, SMS ,RJT,  IDF, ISO, 3A
Seals material NBR, FPM(Viton) or PTFE, All of them according to FDA 177.2600
Application scope food-processing, beverage, wine, oil, cosmetics, pharmaceutical and chemical industries
Packaging details standard exporting package
Delivery details usually within 20 days after receiving T/T down payment

Materials:
Casing / shaft AISI 316L/AISI304
Spring AISI 301
EPDM Seal according to FDA 177.2600
Surface finishing Ra≤0.8μm

Sanitary Ss316L Welding Stainless Steel Three Piece Check ValveSanitary Ss316L Welding Stainless Steel Three Piece Check ValveSanitary Ss316L Welding Stainless Steel Three Piece Check ValveSanitary Ss316L Welding Stainless Steel Three Piece Check Valve

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