Industrial Valve Flange Hard Seal Ductile Iron Gate Valve Whole Sale China factory Supplier
What is Hard seal gate valve cast iron ?
Hard seal gate valve cast iron 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.
- 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 Hard seal gate valve cast iron
NORTECH Hard seal gate valve cast iron 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.
European Standard EN1171,BS5150,BS5163,BS3464,BS1218,DIN3352 F4,DIN3352 F5
- 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
Technical specifications of Hard seal gate valve cast iron
Specifications:
| 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: Hard seal gate valve cast iron
Application of NORTECH Hard seal gate valve cast iron
Hard seal gate valve cast iron 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.
