Parker NV105C-4 Straight Needle Valve 1/4 in Compression

Product Description

The PARKER NV105C-4 is a straight-pattern needle valve designed for precise flow control in fluid and gas line applications. Built with a brass body and brass needle, it features compression-to-compression end connections sized for 1/4-inch outside-diameter tubing. The valve measures 1.75 inches in overall length and 1.41 inches in overall height, making it compact enough for tight installation spaces. It is rated for a maximum working pressure of 150 psi and handles temperatures from -45 degrees F to 250 degrees F. Licensed plumbers, HVAC technicians, and refrigeration mechanics install this type of valve where fine throttling or shutoff control is required on small-bore tubing runs.

This valve is suited for residential and light commercial applications where 1/4-inch compression tubing is used in refrigeration lines, instrument connections, fuel lines, or similar low-to-medium-pressure systems. The straight configuration allows for in-line installation without requiring angled fittings. The compression end connections simplify installation by eliminating the need for soldering or threading, which makes it a practical choice for field service and retrofit work.

Key Features

• Straight-pattern body for direct in-line flow control
• Compression x compression end connections for 1/4-inch OD tubing
• Brass body and brass needle for corrosion resistance in fluid and gas service
• Rated to 150 psi maximum working pressure
• Wide temperature range: -45 degrees F to 250 degrees F
• Compact design at 1.75 inches overall length and 1.41 inches overall height

Compatibility

Designed for use with 1/4-inch outside-diameter tubing in compression-fitting systems. Suitable for low-to-medium-pressure fluid and gas service lines where a straight needle valve with compression end connections is specified.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or refrigeration mechanic following applicable local codes. Shut off and depressurize the system fully before removing or installing this valve. Compression fittings require proper tube preparation — deburr and square-cut the tubing end before seating. Do not overtighten the compression nut, as brass fittings are susceptible to deformation under excess torque.