Parker 4F-V6LN-SS Needle Valve 1/4 Inch Fnpt Ss 5000 Psi

Product Description

The PARKER 4F-V6LN-SS is a straight needle valve designed for precise flow control in high-pressure fluid and gas systems. Built with a 316 stainless steel body and a polytetrafluoroethylene (PTFE) seal, it handles pressures up to 5,000 psi. The round handle provides positive manual control for throttling or shutoff. At 1.88 inches overall length and 3.55 inches overall height, this is a compact unit suited for tight installations. It connects via 1/4 inch female NPT (FNPT) ports on both ends. HVAC technicians, plumbers, and industrial pipefitters install this valve where corrosion resistance and high-pressure capability are required in a small form factor.

This needle valve is appropriate for residential and light commercial applications involving high-pressure lines, as well as industrial instrumentation, hydraulic, and pneumatic systems. The straight-body configuration suits inline installations where flow direction does not change. The FNPT x FNPT end connections make it compatible with standard threaded pipe assemblies. Its stainless steel construction resists corrosion from water, chemicals, and process fluids, making it a dependable choice for demanding service environments where a standard brass or carbon steel valve would be inadequate.

Key Features

• 316 stainless steel body for superior corrosion resistance in harsh or wet environments
• PTFE seal provides chemical compatibility with a wide range of process fluids and gases
• 5,000 psi maximum working pressure for high-pressure system applications
• 1/4 inch FNPT x FNPT straight configuration for standard inline threaded pipe connections
• Round handle design for controlled manual throttling and shutoff
• Compact footprint at 1.88 inches overall length and 3.55 inches overall height

Compatibility

Designed as an OEM-style replacement or direct installation needle valve for 1/4 inch female NPT threaded pipe systems requiring a straight-body, high-pressure stainless steel valve with PTFE sealing.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified instrumentation technician. Depressurize and isolate the system completely before removing or installing any valve. Apply appropriate thread sealant to FNPT connections in accordance with applicable IPC or ASME B31 piping codes. Do not exceed the rated 5,000 psi working pressure, and ensure the valve orientation and flow direction are correct before returning the system to service.