Needle Valves Hex Body Series – Female x Female – 1/4", 3/8”, 1/2”, 3/4", 1” – 6000 PSI – ASME B16.34 / MSS-SP-99 / ASME B31.3

Needle Valve

Also known as:

Plunger Valve

Needle Valves Hex Body Series – Female x Female – 1/4", 3/8”, 1/2”, 3/4", 1” – 6000 PSI – ASME B16.34 / MSS-SP-99 / ASME B31.3

Needle Valve

Also known as:

Plunger Valve

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6 - 8 Weeks

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Hex Body Needle Valves Female x Female provide precise flow regulation in piping systems and feature two female threaded connections for direct integration with compatible fittings.

Executive Summary

Hex Body Needle Valves Female x Female are used to control and regulate flow in piping systems. The hex body design allows easy wrench installation, and the female x female connections enable direct integration with other threaded components. These valves are suitable for high-pressure and high-temperature applications in oil and gas, instrumentation, and process control systems.

Technical Specifications

Body Style Hex Body Series
Connections Female x Female NPT
Body Bonnet Seal Metal to Metal
Standard ASME B16.34
Valve Ratings ASME B31.3 Process Piping Code
Type Tested MSS-SP-99
Standard Working Pressure 6000 PSI
Dust Protection Dust cap on stem
Handle Removable T-handle for low torque operation
Temperature Rating -50°C to 230°C

Features and Benefits

  • Packing located below the stem threads.
  • Metal-to-metal body and bonnet seal.
  • Hexagonal body for easy wrench installation.
  • Female x Female threaded connections for direct pipe integration.
  • Easy installation and secure connection without extra fittings.

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Detailed Description

Hex Body Needle Valves Female x Female are precision valves designed for accurate flow control and isolation in piping systems. The hexagonal body allows for easy installation and secure tightening using a standard wrench. Both ends have female threads, enabling direct connection to male-threaded pipes or fittings without additional adapters.


These valves are suitable for high-pressure and high-temperature applications, with a standard working pressure of 6000 psi and temperature ratings from -50°C to 230°C, extendable up to 500°C with graphite. They are commonly used in oil and gas, instrumentation, and process control systems to regulate fluid or gas flow, perform system bleed operations, or isolate sections of a pipeline.


The valves feature a metal-to-metal body and bonnet seal for durability, a self-centering non-rotating stem tip for consistent shutoff, and packing located below the threads to prevent process media from reaching the threads. Factory-tested for seat and packing leakage, these valves provide reliable, leak-free performance in demanding environments.

Engineering Data