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Check Valves

  • Top Entry Check Valve

    Top Entry Check Valve

    Top Entry Check  Valve  ,carbon steel,stainless steel and alloy steel

    Size Range：2″~60″(DN50~DN1500）

    Pressure Class：ASME CLASS 150~2500
    Main material：carbon steel, low temperature steel, staniless steel, alloy steel & duplex steel etc.
    Ends：RF, BW, RTJ etc.

    NORTECH is one of the leading China Top Entry Check  Valve Manufacturer & Supplier.

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  • Swing Check Valve ASME CLASS 150~2500

    Swing Check Valve ASME CLASS 150~2500

    ASME Swing check valve,carbon steel,stainless steel and alloy steel

    Size Range：2″~60″(DN50~DN1500）

    Pressure Class：ASME CLASS 150~2500
    Main material：carbon steel, low temperature steel, staniless steel, alloy steel & duplex steel etc.
    Ends：RF, BW, RTJ etc.

    NORTECH is one of the leading China ASME Swing Check Valve Manufacturer & Supplier.

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  • Rubber Seat Dual Plate Check Valve

    Rubber Seat Dual Plate Check Valve

    Rubber seat dual plate check valve,double door check valve

    WRAS,ACS certified for drinking water,potable water

    DN50-DN1000,2″-40″

    PN10/PN16,ANSI Class125/150

    Face to face to API594/ISO5752/EN558-1 series 16

    Flange ASME B16.5,ASME B16.47,EN1092-1 

    NORTECH is one of the leading China Rubber Seat Dual Plate Check Valve Manufacturer & Supplier.

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  • Cast Steel Lift Check Valve

    Cast Steel Lift Check Valve

    DIN/EN Cast steel Lift check valve,piston check valve

    Diameter:DN15-DN400,PN16-PN100

    BS EN 12516-1,BS1868

    Face to face to EN558-1/DIN3202

    Body/bonnet/Disc:GS-C25/1.4308/1.4408

    Trim:13CR+STL/F304/F316

    NORTECH is one of the leading China Cast Steel Lift Check Valve Manufacturer & Supplier.

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  • Ball Check Valve

    Ball Check Valve

    Ball check valve

    Nominal diameter:DN40-DN500

    Disc type:Ball Check Valve

    Design standard:EN12334,DIN3202 F6

    Body material:Ductile iron GGG50

    Ball material:Ductile iron GGG50 + EPDM/NBR coating

    NORTECH is one of the leading China Ball Check Valve Manufacturer & Supplier.

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  • Cast Iron Swing Check Valve

    Cast Iron Swing Check Valve

    Cast iron swing check valve,with closure device

    Nominal diameter:DN50-DN600/2”-24”

    Disc type:Swing Check Valve

    Design standard:BS5153/DIN3202 F6/AWWA C508

    Body material:Cast iron/Ductile iron

    Disc material:Cast iron/Ductile iron

    Seat material:Brass/Bronze/Stainless steel

    NORTECH is one of the leading China Cast Iron Swing Check Valve

     Manufacturer & Supplier.

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  • Air cushioned cylinder Swing Check Valve

    Air cushioned cylinder Swing Check Valve

    Air Cushioned cylinder Cast iron swing check valve,with counterweight and actuator

    Nominal diameter:DN50-DN600/2”-24”

    Disc type:Swing Check Valve

    Design standard:BS5153/DIN3202 F6/AWWA C508

    Body material:Cast iron/Ductile iron

    Disc material:Cast iron/Ductile iron

    Seat material:Brass/Bronze/Stainless steel

    NORTECH is one of the leading China Air cushioned cylinder Cast Iron Swing Check Valve

     Manufacturer & Supplier.

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  • Rubber Disc Swing Check Valve

    Rubber Disc Swing Check Valve

    Rubber disc swing check valve,swing flex,flexible swing check valve.

    Nominal diameter： DN50-DN900/2”-36”

    Disc type： Swing Check Valve

    Design standard： BS5153/DIN3202 F6/AWWA C508

    Body material： Cast iron/Ductile iron

    Disc material： Cast iron+Rubber vulcanised/Ductile iron vulcanised.

    Seat material： Brass/Bronze/Stainless steel

    NORTECH is one of the leading China Rubber Disc Swing Check Valve Manufacturer & Supplier.

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  • Metal Seat Dual Plate Check Valve

    Metal Seat Dual Plate Check Valve

    Metal seat dual plate check valve,double door check valve

    DN50-DN1200,2″-48″

    PN10/PN16/PN25/PN40/PN63/PN100,Class150/300/600/900/1500/2500

    Face to face to API594/ISO5752/EN558-1 series 16

    Flange ASME B16.5,ASME B16.47,EN1092-1 

    NORTECH is one of the leading China Metal Seat Dual Plate Check Valve Manufacturer & Supplier.

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  • ASME Swing Check Valve

    ASME Swing Check Valve

    ASME Swing check valve,carbon steel,stainless steel and alloy steel

    Diameter:2″-32″,Class150-Class2500

    BS1868/ASME B16.34/API6D

    Face to face to ANSI B16.10

    Body/bonnet/Disc:WCB/LCB/WC6/WC9/CF8/CF8M

    Trim:No.1/No.5/No.8/Alloy

    NORTECH is one of the leading China ASME Swing Check Valve Manufacturer & Supplier.

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  • Forged Steel Check Valve

    Forged Steel Check Valve

    Forged steel check valve,swing check valve,piston check valve(lift check valve)

    Diameter:1/2″-2″,800lbs-2500lbs,API602

    bollted bonnet/welded bonnet/pressure seal bonnet(PSB)

    Body/bonnet/Disc:A105/F304/F316/F11/F22/LF2/Monel etc

    Trim:13CR+STL/F304/F316

    NORTECH is one of the leading China Forged Steel Check Valve Manufacturer & Supplier.

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