Bronze Swing Check Valve  Size : DN15--100  (1/2"~4")   1)  ISO9001 Certificate 2)  quality guaranteed 3)  delivery in time 5)  Nominal pressure:1.6Mpa. 6)  Working medium:Water,non corrosive liquid(not include oil),saturated steam. 7)  Working Temperature:-20ºC≤t≤150ºC. 8)  Pressure testing to ISO5208 or as customer requirement 9)  Pipe thread ISO 7/1, ISO228, DIN2999 , BSPT. BSP ,NPT ,G .R . ... 10)  material part :  bronze  body  , plastic or brass pin    Material: C83600 .C84400, CC491K,  casting Disc: Brass Disc silicon rubber seals or ABS disc NBR seals Check valve is the valve relies on media flow to automatically open and close the disc, is used to prevent the media backflow, also known as check valve, one-way valve, reflux valve, and back pressure valve.  Welcome to your warmly inquiry!We would like to service with you!!  Customer designs are also welcomed!! the following is my detailed contact info What the unloader valve does is that is responds to the compressor pressure switch turning the power off to the motor and allows any air that may be trapped over the piston, or pistons on a multi-cylinder air compressor, to vent to atmosphere, removing any load that the trapped air may have created over the cylinder . Compressor Unloader,Pressure Washer Unloader Valve,Compressor Unloader Valve,Air Compressor Unloader SHANGQIU FLAT WORLD MACHINERY CO.,LTD , https://www.flatworldtrucks.com
Specifications of Check valve
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 Function :
Check Valve is an automatic valve, its main function is to prevent the media backflow, prevent pump and drive motor reverse, and discharge the container medium. Check valve can also be used in pipelines that its pressure which may rise to exceed the system pressure auxiliary supply.
Classification
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B62-C83600 Bronze Welded Swing Control Check Valve for Water
Model NO.: JY0262
Flow Direction: Reversing
Standard: ANSI
Application: Industrial Usage, Water Industrial Usage, Household Usage
Power: Hydraulic
Standard or Nonstardard: Standard
Temperature of Media: Normal Temperature
Media: Water
Working Pressure: Pn25
Technical: Casting
Certificate: ISO9001 Ce Acs. UL CSA
HS Code: 8481804090, 8481804090
Trademark: JUNYUAN
Transport Package: Polybag, Inner Box, Carton and Wooden Pallets
Specification: 1/2"--4"
Origin: Zhejiang
    B62-C83600 Bronze Welded Swing Check Valve