Pressure Sealed-Slab Gate Valve
Technical parameters and characteristics：
Product type | ON/OFF |
Product description | Pressure Sealed-Slab Gate Valve |
Model | Z47H、Zp43/44/48H(F)-Pressure Sealed-Slab Gate Valve |
Nominal diameter | NPS 2”～48”(DN50～DN1200) |
Operating temperature | -196℃～593℃(the range of service temperature may vary for different materialstd) |
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 6D、GB/T 12234、GB/T 12224 |
Structural length | ASME B16.10、GB/T 12221 |
Connecting end | ASME B16.5、ASME B16.47、ASME B16.25、GB/T 9113 |
Test standard | API 598、ISO 5208、GB/T 26480、GB/T 13927 |
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. |
Other remarks 1 | The valve seat is embedded with flexible seal ring for zero leakage of seal; the valve seat and the slide sealing surface are build-up welded with hard alloy to improve the scouring resistance and extend the service life of the valve. |
Other remarks 2 | 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. |
Other remarks 3 | Rising stem structure, making the valve switch position be clear at a glance |
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. |
Other remarks 5 | Small switching moment, reliable sealing |
Other remarks 6 | The self-sealing parallel double-plate and the stretching type parallel double-plate structures are adopted, so the sealing performance is good. |
Other remarks 7 | Small flow resistance, high flow capacity and good flow characteristics |
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. |