Design features
welded-end construction that integrates the valve into the pipeline and reduces flange joints
Final dimensions, materials, ratings and documentation depend on the approved configuration.
Butterfly valves / LIANGGU
Butt Welded Butterfly Valve
This model is a butterfly valve distinguished by welded-end construction that integrates the valve into the pipeline and reduces flange joints. 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 shaft rotates the disc through a quarter turn; seat geometry, differential pressure, flow direction, line velocity, cycle frequency, and actuator torque determine shutoff and control performance; verify post-weld treatment and seat protection during welding
Typical applications
steam, high-temperature utility lines, district energy, and long-service welded piping systems
Selection priorities
weld-end metallurgy, post-weld treatment, seat protection during welding, face-to-face dimension, thermal movement, and NDE
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 optionButt-welded ends matched to pipe material, wall thickness, bevel, welding procedure, heat treatment, and examination requirements |
| Actuation & accessories | Manufacturer optionManual, geared, electric, pneumatic, or hydraulic operation only where the selected design and duty support it |
| Design standards | Manufacturer optionThe project must state the product-design basis for the butt-welded configuration; apply API 609 only when the ordered construction falls within the edition's scope |
| 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.
Related products
View family →
