Design features
an extended bonnet separating the packing system from the cold zone
Final dimensions, materials, ratings and documentation depend on the approved configuration.
Gate valves / LIANGGU
Cryogenic Stainless Steel Gate Valve
This model is a gate valve distinguished by an extended bonnet separating the packing system from the cold zone. 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 extension length and material impact properties
Typical applications
LNG, liquid nitrogen, low-temperature storage, and cold gas transfer
Selection priorities
minimum design temperature, extension length, material impact properties, cavity relief, and test method
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 optionLow-temperature-qualified stainless steel or other approved alloy, with impact properties, seat, packing, and bolting verified at the minimum design temperature |
| End connection & standard | Manufacturer optionFlanged or butt-welded ends matched to the approved piping class and selected product design |
| Actuation & accessories | Manufacturer optionManual, geared, electric, pneumatic, or hydraulic operation only where the selected design and duty support it |
| Design standards | Manufacturer optionAPI 600 or API 603 may apply depending on construction; API 598 and the project pressure-design and piping-interface standards apply only within their stated scopes |
| 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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