Design features
a pneumatic diaphragm actuator that drives a globe-style throttling trim
Final dimensions, materials, ratings and documentation depend on the approved configuration.
Control valves / LIANGGU
Pneumatic Globe Control Valve
This model is a control valve distinguished by a pneumatic diaphragm actuator that drives a globe-style throttling trim. 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
the actuator positions an engineered trim to change flow; correct sizing depends on required capacity, installed pressure drop, process dynamics, phase behavior, noise, and the specified fail action; verify rangeability and fail action
Typical applications
steam, water, gas, chemical dosing, and general process control loops
Selection priorities
Cv, rangeability, fail action, air supply, trim characteristic, noise, cavitation, and positioner signal
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, stainless steel, alloy steel, or another approved alloy after service and fabrication review |
| End connection & standard | Manufacturer optionFlanged or butt-welded ends matched to the approved piping class and selected product design |
| Actuation & accessories | Manufacturer optionPneumatic actuator; air pressure and quality, spring-return or double-acting mode, fail action, travel time, accessories, and feedback must be specified |
| Design standards | Manufacturer optionIEC 60534 series for control-valve sizing, terminology, inspection, and testing, plus the project pressure-design and piping-interface standards |
| 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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