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| Product Name: |
Vacuum isolated gate valve of power plant valves
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| Supply Ability: |
50000 |
| Related proudcts |
gate valve, power station valve, vaccum gate valve, |
| Specifications |
standard |
| Price Term: |
FOB/CIF |
| Port of loading: |
ningbo/shanghai |
| Minimum Order |
1 |
| Unit Price: |
100 USD/case |
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Product overview
Chief structure features and usages
1. The main body of this series valve uses a casting and forging structure and has a dual-direction seal of parallel secondary semi-forced dual-sealing and the motions of both the sealing face to its due position and the tapered block to wedge-up are separated to have zero lead age come true.
2. The sealing face is of a small frictional force if motion,lightly opened and closed and has a self compensation function for wearing.
3. Simple structure easy to more than 10 years of long duration.
4. A vacuum sealing structure is set in the filling chamber on the valve cover,which has the action of self-expanding and i***cting,the joint faces are sealing with the expansive material of high strength to completely isolate the system from air.
5. Two connection ways of b flange and welding,two ways to drive of heand-and eletric-operation. The valve can be used as the open & close device for the pipelines under the working temperature Less than425degree centigrade and 550 degree centigrade and the working medium of water,steam or air;especially suitable to act as the vacuum isolating sealing for the system of steam turbine's considernation and vacuum negative pressure in steam power plants.
Valve ctrucure type:
Mode1 NKJ61 Vacuum isolating stop valve;Model NKZ44 and NKZ64 Vacuum isolating gate valves.
Manufacture and acceptance standard:
1.Manufacture,acceptance and technical conditions per GB/T12234,GB/T12235.
2. Face-to face dimensions per GB/T12221.
3. Flange sizes per JB/T78-79,GB/T9112-9124.
Material for main parts
Body,Bonnet: 25 or WCB
Valve stem£ºCr.stainless steel£¬25Cr2MoV
Disc£ºCr.stainless steel£¬12Cr1MoVA¡£
Sealing face£ºH: alloy steel£¬Y: carbide alloy
Yoke nut£ºAl bronze
Packing£ºExpanding compound graphite
Fastener£ºHigh-grade carbon steel£¬Cr.Mo steel
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| Company: |
Zhejiang Hisun Automation Instrument Co.,Ltd
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| Contact: |
Mr. Jack Zhang |
| Address: |
He Yi industrial district,Oubei town |
| Postcode: |
325100 |
| Tel: |
86 0577 57789961 |
| Fax: |
86 0577 67985602 |
| E-mail: |
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