Design features
media-compatible trim and stem sealing specified for ammonia duty
Final dimensions, materials, ratings and documentation depend on the approved configuration.
Globe valves / LIANGGU
Ammonia Service Globe Valve
This model is a globe valve distinguished by media-compatible trim and stem sealing specified for ammonia duty. 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 linear stem moves a guided disc or plug toward a stationary seat; the tortuous flow path creates more pressure loss than a gate valve but supports controlled shutoff and, with suitable trim, limited regulation; verify purity and minimum temperature
Typical applications
refrigeration plants, fertilizer facilities, ammonia storage, and process transfer lines
Selection priorities
ammonia phase and purity, minimum temperature, copper-alloy restriction, gasket compatibility, leak criterion, and venting practice
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 steel, low-temperature steel, or suitable stainless steel after ammonia compatibility review; copper-bearing pressure and trim parts require explicit engineering approval |
| 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 623 or another approved globe-valve product standard, with separate pressure-design, testing, face-to-face, and piping-interface requirements |
| 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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