
Female NPT needle valve for flow control solutions. Our stainless steel needle valves are manufactured in the UK to the highest British quality standards.

Female NPT Needle Valve
Technical Specifications overview:
- Pressure Range: 0-6000 psi
- Extended Range: 0-10,000 psi
- Temperature Range (PTFE) -20 to 200C
- Temperate Range (Graphite) -20 to 400C
- Material: Stainless Steel 316
Female NPT Needle Valve
- Female/Female single piece bodies with and without bleed.
- Female/Female three piece body needle valves with and without bleed.
- Also available: Compression ended needle valves with Ringlok or Duoloc ends, double and single ferrule compression fittings.
NPT Thread and Sizes
Size NPT | Body Piece | Part Number |
---|---|---|
1/4″ | Single | NV2N |
3/8″ | Single | NV3N |
1/2″ | Single | NV4N |
1/4″ | Single Bleed | NV2N-B |
3/8″ | Single Bleed | NV3N-B |
1/2″ | Single Bleed | NV4N-B |
1/4″ | Three | NV2N-3 |
3/8″ | Three | NV3N-3 |
1/2″ | Three | NV4N-3 |
1/4″ | Three Bleed | NV2N-3-B |
3/8″ | Three Bleed | NV3N-3-B |
1/2″ | Three Bleed | NV4N-3-B |
Stainless Steel Needle Valves
1/4, 3/8and 1/2 NPT Thread, BSP and BSPT
Pressure VS Temperature Performance

NPT Valve connection standard to ANSI/ASME B1-20.3.
National Pipe Thread Taper (NPT) is a U.S. standard for tapered threads used on threaded pipes and fittings.
Performance test including Shell and Seat test.

Needle Valve Markings
- Manufacturer: Waverley Brownall Limited
- Operating Limits: 6000 psi @ 200C
- Material of Construction: Stainless Steel 316
- Material Cast Code: A123
- Colour-coded dust cap: Blue, Isolate