Parker 2Z-V4LN-B Straight Needle Valve 1/8 in Compression

Product Description

The PARKER 2Z-V4LN-B is a straight-pattern needle valve designed for precise flow control in high-pressure fluid and gas systems. It features compression-to-compression end connections sized at 1/8 inch and is rated for a maximum working pressure of 3000 psi. The needle valve design allows fine metering of flow, making it suitable for instrumentation lines, gauge isolation, hydraulic circuits, and pneumatic control systems. Installation is typically performed by licensed plumbers, pipefitters, or industrial maintenance technicians working on process or mechanical systems.

This valve is well suited for residential and light commercial mechanical systems as well as industrial process lines where tight shutoff and flow metering are required at 1/8 inch connection points. Compression fittings make it adaptable to copper or compatible tubing without threading, simplifying installation in tight spaces or retrofit applications. It is commonly used in HVAC refrigerant circuits, instrumentation panels, and hydraulic test rigs.

Key Features

• Straight-pattern body for in-line installation with minimal pressure drop
• Compression x compression end connections for tool-assisted, leak-resistant assembly
• Rated to 3000 psi maximum working pressure for demanding high-pressure service
• 1/8 inch pipe size suits instrumentation, gauge lines, and small-bore process tubing
• Needle design provides precise flow metering and positive shutoff capability

Compatibility

Designed as an OEM-style replacement or direct-fit needle valve for 1/8 inch compression tubing systems operating at up to 3000 psi.

Installation Notes

Installation should be performed by a qualified pipefitter, plumber, or instrumentation technician. Depressurize and isolate the line completely before removing or installing any needle valve. Compression fittings require proper ferrule seating and should be tightened to snug plus one-quarter turn unless the fitting manufacturer specifies otherwise. Follow applicable mechanical codes such as the IPC or ASME B31.1 for pressure piping when integrating into pressurized systems.