The J11W internal thread needle valve is a small-bore instrument valve with female thread 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. This valve is primarily used for root isolation of pressure gauges and transmitters, pipeline sampling, flow regulation, and draining/venting. It serves as a critical instrument accessory in industries such as petroleum, chemical, and power generation, ensuring safe isolation and precise control of measurement systems

Product Drawing of J11W Female Threaded Needle Valve

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

2.Internal thread connections for easy installation: Both ends feature standard female threads for direct screwing into pipelines or instrument ports, simplifying installation.

3.Body-seated sealing surface (“W” type): The sealing surface is directly machined from the body material, offering economy, durability, and wear resistance.

4.Reliable sealing and long service life: The metal-to-metal hard seal structure ensures reliable sealing performance and extended operational life.

5.Compact structure and high pressure rating: Its small size suits space-limited applications, while the robust body withstands high working pressures.

6.Multiple material options: Body materials include stainless steel and carbon steel to meet various media corrosion resistance requirements.    

Structure Diagram of J11W Female Threaded Needle Valve

Component name and material

Performance Specification Sheet

J11W Female Threaded Needle Valve Outline Drawing

Outline dimension table