The J61W socket weld needle valve is a small-bore instrument valve featuring socket weld connections, operated by rotating the handwheel to drive the stem and needle-type disc for precise opening and closing. Its sealing surface is directly machined from the valve body material (“W” type), forming a metal-to-metal hard seal. Both ends feature pre-fabricated socket weld ports for direct butt welding to the pipeline, creating a permanent, zero-leakage sealing structure. This valve is primarily used for root isolation of pressure gauges and transmitters, pipeline sampling, flow regulation, and draining/venting, especially in high-temperature, high-pressure, vibrating applications, or critical occasions requiring absolute sealing, ensuring safe and reliable operation of measurement systems.

Product Drawingof J61W Socket Weld Needle Valve

1.Socket weld connections for absolute sealing: Both ends feature socket weld ports for direct butt welding to the pipeline, creating a permanent, zero-leakage seal and eliminating leakage risks of threaded connections.

2.Specifically for high-temperature and high-pressure applications: Welded connection is particularly suitable for harsh conditions involving high temperature, high pressure, and severe vibration, offering high strength and safety.

3.Needle-type disc for precise regulation: The needle disc cooperates with the seat to enable precise adjustment and control of small flow rates with excellent regulation performance.

4.Metal-to-metal hard seal for reliability: Sealing surfaces are directly machined from stainless steel, forming a wear-resistant metal-to-metal hard seal with long service life.

5.All-stainless steel corrosion resistance: Body and main components are made of 304/316 stainless steel, providing excellent corrosion resistance for various corrosive media.

6.High-pressure design: Robust body structure withstands high working pressures, suitable for high-pressure applications.

7.Reliable stem sealing: Multi-layer packing or PTFE sealing with gland prevents external leakage.

8.Compact structure for secure installation: Small size with permanent welded fixation, ideal for space-limited applications requiring long-term stable operation

Structure Diagram of J61W Socket Weld Needle Valve

Component name and material

Performance Specification Sheet

J61W Socket Weld Needle Valve Outline Drawing

Outline dimension table