Design features
pressure-assisted bonnet sealing intended for high-energy steam and water duties
Final dimensions, materials, ratings and documentation depend on the approved configuration.
Power station valves / LIANGGU
Pressure Seal Power Station Gate Valve
This model is a gate valve distinguished by pressure-assisted bonnet sealing intended for high-energy steam and water duties. For a project quotation, share the required size, pressure designation, materials, seating, connections and quantity. Final suitability is confirmed against the approved specification.
PRODUCT DETAILS
Understand this valve.
Working principle
a stem moves a wedge or parallel gate clear of the bore for isolation; the valve should normally be fully open or fully closed, not used as a routine throttling device; verify thermal transient and body alloy
Typical applications
superheated steam, feedwater, boiler circulation, and high-pressure plant headers
Selection priorities
pressure-seal gasket, thermal transient, body alloy, bypass sizing, actuator thrust, and creep-range temperature
SPECIFICATION REVIEW
Define the required configuration.
Manufacturer-listed options remain subject to the selected design and service. They are not fixed specifications for every configuration.
| Size / DN or NPS | Project-specific — include in your RFQ |
|---|---|
| Pressure designation | Project-specific — include in your RFQ |
| Common material options | Manufacturer optionCarbon, low-alloy, or stainless steel selected from the approved pressure-temperature basis, thermal cycling, weldability, and plant material specification |
| End connection & standard | Manufacturer optionButt-welded, socket-welded, threaded, or flanged ends only within the selected product design and piping-class scope |
| Actuation & accessories | Manufacturer optionManual, geared, electric, pneumatic, or hydraulic operation only where the selected design and duty support it |
| Design standards | Manufacturer optionThe applicable product standard, pressure-design basis, testing requirements and piping interfaces must be confirmed for the selected pressure-seal design. |
| Lead time & documentation | Confirmed in the written quotation |
Other materials & project configurations
Listed materials are common options, not an exhaustive range. Share the required grade and service conditions so we can review suitability, manufacturing feasibility and availability.
Catalogue information supports the enquiry. Approved technical documents define the final supply.
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