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Vacuum isolated gate valve of power plant valves
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| Post Date: | Nov 26,2016 |
| Expiry Date: | May 25,2017 |
| Detailed Description: |
Price:200 USD FCL Payment Method: T/T 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 impacting,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：Cr.stainless steel，25Cr2MoV Disc：Cr.stainless steel，12Cr1MoVA。 Sealing face：H: alloy steel，Y: carbide alloy Yoke nut：Al bronze Packing：Expanding compound graphite Fastener：High-grade carbon steel，Cr.Mo steel |
| Company: | zhejiang hisun automation instrument co.,ltd [ China ] |
| Contact: | pagan peng |
| Tel: | 86-577-57789961 |
| Fax: | 86-577-67985602 |
| Email: | hisun@goolevalve.com |
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