Pressure Sealed-Wedge Gate Valve
Technical parameters and characteristics：
Product type | ON/OFF |
Product description | Pressure Sealed-Wedge Gate Valve |
Model | Z47H、Zp43/44/48H(F)-Pressure Sealed-Wedge Gate Valve |
Nominal diameter | 2″～48″ |
Operating temperature | -196℃～593℃(the range of service temperature may vary for different materials) |
Nominal pressure | CLASS 600～2500 （PN100～PN420） |
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. |
Design standard | ASME B16.34, API 600 |
Structural length | ASME B16.10 |
Connecting end | ASME B16.5, ASME B16.47, ASME B16.25 |
Test standard | API 598, ISO 5208 |
Operation method | non-elevating hand wheel, bevel gear, motor drive unit, pneumatic drive unit |
Application fields | For application in fields such as electric power industry, petroleum, tap water engineering in urban construction, chemical engineering, etc. |
Technical characteristics | 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. |
The pressure self-sealing is adopted between valve body and bonnet for reliable sealing, where the higher the pressure is, the better the sealing performance would be. | |
Rising stem structure, making the valve switch position be clear at a glance | |
The valve stem thread will not come into contact with the medium, so the corrosion of medium to the thread is reduced. | |
Small switching moment, reliable sealing | |
The slide is of wedge type, resilience and good sealing performance. | |
For small wedge resilient gate valves, the interchangeability can be ensured with process tooling. | |
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. |