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China Flange Gate Valve Metal Seated Cast Iron Gate Valve factory supplier

Short Description:

flange gate valve  

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

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 flange gate valve Manufacturer & Supplier.

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What is flange gate valve ?

flange gate valve is widely used shut-off valve,in water industry,water supply and drainage,waste water treatment,urban water supply system.

  • it's normally designed with a wedge disc,like the soft seat gate valves.the difference is that the sealing of valve is metal to metal,brass,bronze,or stainless steel.
  • the benefits of metal to meal sealing is that the valve will be suitable for more severe working conditions,and much longer life.
  • The wedge has a machined groove in its central part providing flexibility at the disc.
  • Nonrising stems stay in the same position whether the valve is open or closed. Valves with nonrising stems are often used underground and in other low-clearance locations.
  • 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.

Main features of NORTECH flange gate valve

NORTECH  flange gate valve  offer the ultimate in dependable service wherever minimum pressure drop is important.both inside screw and non-rising stems and outsidecrew and York(OS&Y),rising stems are available.

we supply a wide range of the gate valves conforming to most of popular standards in Europe,and USA.

American Standard MSS-SP70

  • 1)Flange ANSI B16.1,ASME B16.5,ASME B16.47,AWWA 
  • 2)Each valve is hydrostatically tested to API598
Non-rising stem gate valve

Inside screw&Non-rising stem

Rising stem gate valve

OS&Y,Rising stem

Technical specifications of NORTECH flange gate valve


Design and Manufacture DIN3352 F4/F5,EN1074-2/BS5150/BS5163/BS3464/MSS-SP70/AWWA C500
Face to face  DIN3202/EN558-1/BS5150/BS3464/BS1218//BS5163/ANSI B16.10
Pressure rating PN6-10-16,Class125-150
Flange end EN1092-2 PN6-10-16,BS10 Talbe D-E-F,ANSI B16.1/ASME B16.5/16.47/AWWA
Size(Rising stem) DN50-DN1200
Size(Non-rising stem) DN50-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: flange gate valve


Application of NORTECH flange gate valve

flange gate valve are widely used in city water supply, sewage treatment, construction industry, petroleum pipe line, chemical industry,foodstuff industry, pharmaceutical industry, textile-industry, power sector, shipbuilding, metallurgical industry, energy systemand other fluid pipes as regulator or cut-off equipment.

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