More than 20 years of OEM and ODM service experience.

Water works series

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

  • Resilient Seated gate valve

    Resilient Seated gate valve

    Resilient seated gate valve,wedge gate valve for water

    DN50-DN1200,PN6-10-16,2″-48″,ANSI 125-150

    Inside screw Non-rising stem and outside screw & York rising stem

    DIN3352 F4/F5,EN1074-2/BS5163/AWWA C509

    WRAS and ACS Certified

    NORTECH is one of the leading China Resilient Seated gate valve

     Manufacturer & Supplier.

  • Large size Cast Iron Gate Valve

    Large size Cast Iron Gate Valve

    Large size cast iron gate valves

    Vertical and horizontal installation.

    Body in cast iron,ductile iron,brass,bronze and stainless steel seal ring

    for water treatment,sugar plant,potable water

    PN6-10-16

    OS&Y Rising stem DN700-DN1200

    Non-rising stem DN700-DN1800

    DIN3352 F4/F5,EN1074-2/BS5163/AWWA C500

    NORTECH is one of the leading China Metal Seated Cast Iron Gate Valve Manufacturer & Supplier.

  • Metal Seated Cast Iron Gate Valve

    Metal Seated Cast Iron Gate Valve

    Metal seated cast iron gate valves

    Body in cast iron,ductile iron,brass,bronze and stainless steel seal ring

    for water treatment,sugar plant,potable water

    PN6-10-16

    OS&Y Rising stem DN50-DN1200

    Non-rising stem DN50-DN1800

    DIN3352 F4/F5,EN1074-2/BS5163/AWWA C500

    NORTECH is one of the leading China Metal Seated Cast Iron Gate Valve Manufacturer & Supplier.