Pressure sealing gate valve gate plate with the valve stem for linear movement, usually in the lifting stem has a trapezoidal thread, through the valve top of the nut, as well as the valve body on the guide groove, the rotary movement into a linear movement, that is, the operating torque into the operating thrust.
Size Range: 2″ thru 24″
Pressure Class: 600-4500
Style: Flexible Wedge and Parallel Slide design
Materials: A216 WCB, WC6, WC9, C5, C12, C12A, CF8M and special alloys
- Pressure sealing gate valve structure features.
1, the use of flow channel isometric straight through structure, greatly reducing the flow resistance coefficient and energy loss, significantly improving the service life and performance of the valve.
2, the valve cavity using pressure self-tight sealing structure, good sealing performance.
3,Gate and seat sealing surface is made of hard alloy surfacing, which is wear-resistant, high temperature-resistant, corrosion-resistant, and has good anti-scratch performance.
4,The surface of valve stem is treated with corrosion-resistant nitriding, which has good corrosion resistance and anti-scratch property.
5,The structure of opening and closing parts can be designed into different forms such as single-plate, double-plate, parallel double-plate, etc. according to the requirements of users.
6,With multi-turn electric device, remote control and local operation can be achieved.
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Pressure Seal Bonnet vs Bolted Bonnet Design
| Pressure Seal Bonnet Design | Bolted Bonnet Design |
| A thrust ring is the primary component of its sealing mechanism and works alongside a gasket and a spacer ring. | Optimal sealing is achieved via a combination of the flange, gasket, and attaining the recommended torque level when tightening the flange bolts/studs. |
| The potential for leakage reduces with increasing pressure. | An increase in pressure results in an increase in the potential for leakage. |
| Valve size is not a function of its design pressure. | As the design pressure increases, the valve size increases significantly as the flange and bolts must be larger to withstand greater pressure levels. |
Pressure Seal Gate Valve
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