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Expanded Gate Valve
Technical parameters and characteristics：
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Product type |
ON/OFF |
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Product description |
Expanded Gate Valve |
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Model |
Zpc48H-Expanded Gate Valve |
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Nominal diameter |
NPS 2”～30”(DN50～DN750) |
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Operating temperature |
-196℃～593℃(the range of service temperature may vary for different materials) |
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Nominal pressure |
CLASS 150～2500 （PN20～PN420） |
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Material |
Main material: A216 WCB、WCC; A217 WC6、WC9、C5、C12、C12A、CA15; A351 CF8、CF8M、CF3、CF3M、CF8C、CN3MN、CK3MCUN、CN7M; A352 LCB、LCC; A494 CW-6MC、CU5MCuC、M35-1; A890 4A(CD3MN)、5A(CE3MN)、6A(CD3MWCuN); ASME B 148 C95800、C95500, etc. |
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Design standard |
API 600、ASME B16.34、GB/T 12234、GB/T 12224 |
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Structural length |
ASME B16.10、GB/T 12221 |
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Connecting end |
ASME B16.5、ASME B16.47、ASME B16.25、GB/T 9113、GB/T 12224 |
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Test standard |
API 598、ISO 5208、GB/T 26480、GB/T 13927 |
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Operation method |
non-elevating hand wheel, bevel gear, motor drive unit, pneumatic drive unit |
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Application fields |
For application in fields such as electric power industry, tap water engineering in urban construction, chemical engineering, etc. |
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Other remarks 1 |
The sealing faces of valve seat and valve clack are build-up welded with hard alloy to improve the erosion resistance and extend the service life of valve. |
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Other remarks 2 |
SS+ graphite or metallic seal or pressure self-sealing is adopted between valve body and bonnet for reliable sealing |
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Other remarks 3 |
Rising stem structure, making the valve switch position be clear at a glance |
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Other remarks 4 |
The valve stem thread will not come into contact with the medium, so the corrosion of medium to the thread is reduced. |
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Other remarks 5 |
Small switching moment, reliable sealing |
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Other remarks 6 |
The self-sealing parallel double-plate and the stretching type parallel double-plate structures are adopted, so the valve would not jam due to the impact of cold or hot medium. |
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Other remarks 7 |
Small flow resistance, high flow capacity and good flow characteristics |
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Other remarks 8 |
Through improving the structural design and selecting reasonable packing structure and qualified packing supplier, the valves can meet the Class A sealing test requirements of ISO 15848 FE. |