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Classification：Vacuum valve
Trade names：
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| The vacuum isolates the stop valve |
| Type of the products: PN4.0- 10.0MPa DN10- 150mm |
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The products quote the standard:
Design and manufacture: JB/T3595
The length of structure: GB/T15188.1
The grade of pressure temperature: GB/T3595
Test and examine : GB13927 JB/T9092 |
Use of the products:
The vacuum isolates the stop valve and is suitable for nominal pressure PN4.0- 10.0Mpa, on 200 degrees Centigrade systematic pipelines of return water condensation of hydropower station of fire power of ≤ of working temperature, medium in cut off or put throughing. The suitable medium is: Water , steam ,etc..
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Product structure characteristic:
1.Products is it make to design according to JB/T3595 standard, meet hydropower station equipment related instructions for use.
2.Having designed the sealed structure packing room of the vacuum, it is reliable to isolate the vacuum.
3.The valve stem is through adjusting the quality and surface nitrogen treatment, there is good corrosivity of resisting , resist scotch and wearability .
4.The flange spacer adopts the composite , the coefficient of expansion is great, the airtight is of good performance, it is reliable that the security system is isolated from atmosphere.
5.Is it adopt stainless steel whorl join sealed flat or noumenonn is it weld the body stainless steel succeed to pile to seal, it is reliable to seal . Packing change and is it can go on in do not shut down cases to maintain, convenient and swift to influence the system run. |
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The material of the major part is explained:
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The valve has body
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25, WCB
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Cr5Mo
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The valve covering
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25, WCB
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Cr5Mo
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Support
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25, WCB
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Cr5Mo
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Valve one
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2Cr13 , WCB
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Cr5Mo
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Valve stem
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2Cr13
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38CrMoAL , 25Cr2MoV
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Valve seat
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25, 304
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304
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Sealed ring
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Inflation soft graphite
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Packing
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Inflation soft graphite
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Valve stem nut
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ZCuA110Fe3
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