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Large size Cast Iron Gate Valve

Short Description:

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


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.

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What is Large size Cast Iron Gate Valve ?

Large size Cast Iron Gate Valve is widely used the main line of water supply,water industry,water supply and drainage,waste water treatment,urban water supply system.

  • Metal seated with brass,bronze,and stainless steel sealing rings.
  • Both Non-rising stem and Rising stem are available.
  • Main supplier for chinese waterworks projects.
  • customised production according to the working conditions.
  • Extension stem is available on request.
  • Various type of operation available on request.

Main features of NORTECH Large size Cast Iron Gate Valve ?

NORTECH Large size Cast Iron Gate Valve offer the ultimate in dependable service wherever minimum pressure drop is important.

  • 1)Inside screw and non-rising stems,which stay in the same position whether the valve is open or closed. it could be used underground,or when the space is limited.diameter up to DN1600.
  • 2)Outside screw and York(OS&Y),rising stems lift as the valve opens and lower as the valve closes to provide a visual indication of whether flow is on or off. The stem is isolated from the process media for a longer service life than valves with a nonrising stem.Diameter up to DN1200

Standard EN1171,BS5163,DIN3352,

  • 1)flange PN6/PN10/PN16,BS10 table D/E/F,RF and FF
  • 2)Each valve is hydrostatically tested to BS EN 12266-1: 2003/BS6755/ISO5208

Standard MSS-SP70

  • 1)Flange ASME B16.47,AWWA 
  • 2)Each valve is hydrostatically tested to API598/ISO5208

Specialty for large size iron gate valves.

  • 1)Valve seat ring and wedge ring are designed with tongue and groove,without welding.
  • 2)guiding channel is designed with horizontal installation(on request)

Body of large size gate valve


Wedge of large size gate valve


Structure of large size gate valve for horizontal installation

Technical specifications of NORTECH Large size Cast Iron Gate Valve ?


Design and Manufacture DIN3352 F4/F5,EN1074-2/BS5163/MSS-SP70/AWWA C500
Face to face  DIN3202/EN558-1/BS5163/ANSI B16.10
Pressure rating PN6-10-16,Class125-150
Flange end EN1092-2 PN6-10-16,BS10 Talbe D-E-F,ASME B16.47/AWWA
Size(Rising stem) DN700-DN1200
Size(Non-rising stem) DN700-DN1800
Body,wedge and bonnet Ductile iron GGG40/GGG50/A536-60-40-12/60-40-18
Seat ring/wedge ring Brass/Bronze/2Cr13/SS304/SS316
Operation Handwheel,Worm Gear,Electric actuator
Application Water treatment,sewage,city water supply,etc




Product Show:

gate valve DN1400 PN10 with bronze seat

Application of NORTECH large size cast iron gate valves

Large size Cast Iron Gate Valve are widely used in city water supply main line, sewage treatment, construction industry, petroleum pipe line, chemical industry,foodstuff industry,Sugar plant,pharmaceutical industry, textile-industry, power sector, shipbuilding, metallurgical industry, energy systemand other fluid pipes as regulator or cut-off equipment.


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