Ductile Iron SS304 SS316 Non-return Swing Check Valve

Non-return swing check valve are used in pipes under pressure between 1.6-42.0. Working temperature between -46℃-570℃. They are widely used in industries include oil,chemistry, pharmaceutical and power generation to prevent the back flow of the medium. And the same the time, the valve material can be WCB,CF8,WC6, DI and etc.


  • Size: 2”-12”/DN50-DN600
  • Pressure Rating: PN6/PN10/16, class150-600
  • Warranty: 18 Month
  • Brand Name: ZFA Valve
  • Service: OEM
  • Product Detail

    Product Detail

    Size & Pressure Rating & Standard
    Size DN50-DN600
    Pressure Rating PN6,PN10, PN16, CL150-600
    Face to Face STD API609, BS5155, DIN3202, ISO5752
    Connection STD PN6, PN10, PN16, DIN 2501 PN6/10/16, BS5155
       
    Material
    Body Cast Iron(GG25), Ductile Iron(GGG40/50), Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529), Bronze, Aluminium Alloy.
    Disc DI+Ni, Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529), Bronze, DI/WCB/SS coated with Epoxy Painting/Nylon/EPDM/NBR/PTFE/PFA
    Stem/Shaft SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel
    Seat NBR, EPDM/REPDM, PTFE/RPTFE, Viton, Neoprene, Hypalon, Silicon, PFA

    Product Display

    Swing Type Check Valve (5)
    Swing Type Check Valve with Hammer
    Swing Type Check Valve (4)
    Swing Type Check Valve (2)
    Swing Type Check Valve (33)
    Swing Type Check Valve (31)

    Product Advantage

    Check valve, also known as one-way valve, check valve, back pressure valve, this type of valve is automatically opened and closed by the force generated by the flow of the medium itself in the pipeline, and belongs to an automatic valve. The function of the check valve is to prevent the backflow of the medium, the reverse rotation of the pump and its driving motor, and the discharge of the medium in the container. Double-plate check valve is a very common type of check valve. By choosing different materials, the wafer check valve can be applied to water, steam, oil in petrochemical, metallurgy, electric power, light industry, food and other industries. , nitric acid, acetic acid, strong oxidizing medium and urea and other media.

    The swing check valve adopts a built-in rocker arm swing structure. All the opening and closing parts of the valve are installed inside the valve body and do not penetrate the valve body. Except for the sealing gasket and sealing ring used in the middle flange, the overall There is no leakage point, eliminating the possibility of valve leakage. The connection between the rocker arm and the disc of the swing check valve adopts a spherical connection structure, so that the disc has a certain degree of freedom in the range of 360 degrees, and has proper trace position compensation. It is mainly used in petroleum, chemical, pharmaceutical, fertilizer, etc. , electricity and other pipelines. Suitable for clean media, not suitable for media containing solid particles and high viscosity

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