NEEDLE VALVE (FEMALE X FEMALE)
NEEDLE VALVE (FEMALE X FEMALE)
A Needle Valve (Female x Female) is a precision valve with female-threaded inlet and outlet ports, designed to control the flow of fluid or gas in a system with high accuracy. The fine-threaded needle stem allows gradual opening or closing, making it suitable for applications that require precise flow regulation, isolation, and throttling.
This valve type is widely used in instrumentation lines, hydraulic systems, gas sampling systems, and pressure control panels, across industries such as oil & gas, chemical processing, power generation, and pharmaceuticals.
- Connection type: Female threads on both inlet and outlet (typically NPT, BSP, or metric).
- Precision stem design: Allows fine control over flow rate.
- Non-rotating, tapered needle tip: Ensures long life and tight shut-off.
- Blow-out proof stem: Enhances safety under high-pressure conditions.
- Packing material options: PTFE, graphite, or other materials for temperature and chemical compatibility.
- Body materials: Available in SS316, SS304, carbon steel, brass, Monel, and other alloys.
- Pressure ratings: Standard models up to 6,000 psi (414 bar); higher pressure designs available.
- Precise flow control for both gases and liquids in critical applications.
- Straight-through flow path simplifies system design and alignment.
- Easy integration into female-threaded piping systems.
- Minimizes leak points with compact, direct threaded connections.
- Long service life in high-pressure and corrosive environments.
- Ideal for panel mounting and close-fitting installations.
| Valve Size | Inlet & Outlet Thread | Orifice Size (mm) | Pressure Rating | Typical Cv |
|---|---|---|---|---|
| 1/8″ | 1/8″ NPT Female | 1.5 – 2.0 | Up to 6,000 psi | 0.10 – 0.20 |
| 1/4″ | 1/4″ NPT Female | 2.5 – 3.0 | Up to 6,000 psi | 0.25 – 0.35 |
| 3/8″ | 3/8″ NPT Female | 3.5 – 4.0 | Up to 5,000 psi | 0.40 – 0.60 |
| 1/2″ | 1/2″ NPT Female | 4.0 – 5.0 | Up to 5,000 psi | 0.60 – 0.80 |
| 3/4″ | 3/4″ NPT Female | 5.0 – 6.0 | Up to 4,000 psi | 0.80 – 1.10 |
| 1″ | 1″ NPT Female | 6.0 – 8.0 | Up to 3,000 psi | 1.10 – 1.50 |