Use of slab gate valve
The slab gate valve is a type of sliding valve that uses a parallel ram as its closing element. This closing mechanism can be either a single gate or a double gate system, which often includes a separating mechanism between the two gates to ensure proper sealing. The design allows for efficient control of flow in various industrial applications.
One key feature of the slab gate valve is the way the closing force is applied to the valve seat. In many cases, this force is regulated by the pressure of the medium acting on a floating or spring-loaded valve seat. When a double-gate configuration is used, the expansion mechanism between the two gates helps enhance the sealing effect and compensate for any pressure fluctuations.
Slab gate valves are widely used in industries such as natural gas, oil, petrochemicals, environmental protection, urban infrastructure, and steam systems. They serve as reliable opening and closing devices in transportation pipelines, venting systems, and storage units. For example, the Z43-type single-plate slab gate valve with a bypass hole is particularly suitable for long-distance natural gas extraction and purification pipelines.
The standard size range for these valves typically spans from DN25 to DN1200, with pressure ratings ranging from 0.6MPa up to 45MPa, or equivalently from 150Lb to 3000Lb. Depending on the application, some models are equipped with drain plates for pipeline cleaning, while others are designed without diversion holes for systems where ball clearing is not required.
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