Parker 6Z-V6LN-B Straight Needle Valve 3/8 in Compression

Product Description

The PARKER 6Z-V6LN-B is a straight-pattern needle valve designed for precise flow control in high-pressure fluid and gas systems. Rated to a maximum working pressure of 3000 psi, this valve accepts 3/8 inch compression fittings on both the inlet and outlet ends, making it suitable for installations that demand a leak-tight, adjustable shut-off point. At 0.5 pounds, it is compact enough for tight panel or tubing assemblies. Licensed HVAC technicians, plumbers, and instrumentation professionals routinely install this type of valve where throttling or metering control is required at elevated line pressures.

This needle valve is suited for use in hydraulic, pneumatic, refrigeration, and instrumentation tubing systems where straight-line flow paths are required. The compression-by-compression end configuration allows direct integration into existing compression tube lines without additional adapters. Typical applications include instrument isolation, sample lines, test manifolds, and process control loops operating at pressures up to 3000 psi.

Key Features

• Straight flow pattern for in-line installation with minimal pressure drop across the valve body
• Maximum working pressure of 3000 psi for high-pressure fluid and gas service
• 3/8 inch compression x compression end connections for tool-free tube integration
• Lightweight construction at 0.5 pounds, suitable for space-constrained assemblies
• Needle-style trim provides fine throttling and precise flow adjustment

Compatibility

Designed as an OEM-style replacement or direct addition for high-pressure compression tube systems requiring a straight needle valve with 3/8 inch compression end connections.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified instrumentation mechanic. Before installing or replacing the valve, fully depressurize and bleed the line to zero psi and isolate the section of tubing being serviced. Ensure compression ferrules are properly seated and fittings are tightened to the fitting manufacturer's specification — do not overtighten, as this can damage compression sleeves. Follow all applicable local codes and standards, including ASME B31.1 or B31.3 for pressure piping systems as appropriate to the installation.