Parker 4Z-V4LN-SS Needle Valve 1/4 in Compression Ss Body

Product Description

The PARKER 4Z-V4LN-SS is a straight-pattern 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, this valve delivers corrosion resistance and chemical compatibility across demanding service environments. It accepts 1/4-inch compression fittings on both ends and is rated to 5,000 psi maximum working pressure. The round handle provides manual throttling control and is well-suited for instrumentation, process, and industrial plumbing applications. Licensed plumbers, pipefitters, and instrumentation technicians are the typical installers.

This valve is intended for use in straight-line installations where fine flow metering or shutoff is required. The compression-by-compression end connections make it compatible with tubing runs in process instrumentation panels, hydraulic test rigs, and high-pressure fluid lines. The stainless steel construction handles corrosive media and wash-down environments. Its compact overall dimensions of 2.3 inches overall length and 3.06 inches overall height allow installation in space-constrained assemblies without sacrificing pressure rating.

Key Features

• 316 stainless steel body for corrosion resistance in harsh or corrosive service
• PTFE seal provides chemical compatibility with a wide range of process fluids and gases
• Rated to 5,000 psi maximum working pressure for high-pressure applications
• Straight-pattern configuration for in-line installation
• 1/4-inch compression x compression end connections for tool-free tube attachment
• Round handle for controlled manual flow adjustment and shutoff

Compatibility

Designed as an OEM-style replacement or direct installation needle valve for 1/4-inch compression tubing systems requiring high-pressure flow control.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified instrumentation technician. Depressurize and isolate the system fully before removing any existing valve or fitting. Ensure tubing ends are cut square, deburred, and fully seated into the compression fittings before tightening. Follow applicable plumbing codes and the fitting manufacturer torque guidance for compression connections.