Parker NV105C-5 Needle Valve 5/16 in Compression Brass

Product Description

The PARKER NV105C-5 is a straight-pattern needle valve with a brass body and brass needle, designed for precise flow control in refrigeration, HVAC, and fluid-handling systems. It features compression x compression end connections sized for 5/16-inch outside-diameter tubing. The valve is rated to 150 psi maximum working pressure and handles temperatures from -45 degrees F to 250 degrees F. Its compact form factor — 1.73 inches overall length and 1.35 inches overall height — makes it well-suited for tight equipment spaces. HVAC technicians and refrigeration service pros are the primary installers of this type of valve.

This valve fits inline flow-control applications where precise shutoff or throttling of refrigerant, water, or compatible fluids is required. The straight body style allows for direct in-line installation without the need for additional fittings or offsets. The compression fittings on both ends accept 5/16-inch OD tubing, a common size found in residential and light-commercial refrigeration circuits, HVAC equipment lines, and similar small-bore fluid systems.

Key Features

• Straight valve body for direct in-line installation
• Compression x compression end connections for 5/16-inch OD tubing
• Brass body and brass needle for compatibility with refrigerants and water-based fluids
• 150 psi maximum working pressure
• Wide temperature range: -45 degrees F to 250 degrees F
• Compact profile — 1.73 inches overall length, 1.35 inches overall height

Compatibility

Designed as an OEM-style replacement or service addition for small-bore compression-fitting applications using 5/16-inch OD tubing in HVAC, refrigeration, and fluid-handling systems.

Installation Notes

Installation is typically performed by a licensed HVAC technician or refrigeration mechanic. De-pressurize and isolate the system before removing or installing any inline valve. Compression fittings should be tightened to hand-tight plus the manufacturer-specified turns — do not over-tighten, as brass compression fittings can crack. Verify system pressure does not exceed the 150 psi working pressure rating after returning the system to service.