Parker AVU1-4 Male Connector Access Valve 1/4 in 500 Psi

Product Description

The PARKER AVU1-4 is a brass male connector access valve designed for refrigeration service applications. It features a 1/4-18 male pipe thread connection and accepts 1/4 inch tube OD, with a maximum working pressure rating of 500 psi. This valve provides a service port access point in refrigerant lines, allowing technicians to connect gauges, charge refrigerant, or recover charge without breaking the main line connection. Its all-brass construction resists corrosion and stands up to the pressures and refrigerants common in commercial and residential HVAC-R systems. HVAC-R service technicians install this fitting as part of line set or component service work.

This access valve is suited for refrigeration and air conditioning service where a reliable, pressure-rated access point is required on a 1/4 inch OD tube line. Typical applications include residential split systems, light commercial refrigeration equipment, and any HVAC-R circuit requiring periodic gauge manifold hookup or refrigerant management. The male pipe thread end connects to standard 1/4-18 NPT ports found on valves, receivers, and service tees.

Key Features

• 500 psi maximum working pressure rating for reliable service under typical HVAC-R operating conditions
• 1/4-18 male pipe thread for connection to standard NPT service ports
• Accepts 1/4 inch OD tubing for direct line integration
• All-brass construction for corrosion resistance and refrigerant compatibility
• Compact, single-unit package suitable for field carry and spot repairs

Compatibility

Designed as an OEM-style replacement or service addition for refrigeration and HVAC-R systems requiring a 1/4-18 male pipe to 1/4 inch OD tube male connector access valve.

Installation Notes

Installation should be performed by a licensed HVAC-R technician certified to handle refrigerants under applicable EPA Section 608 regulations. Recover or isolate refrigerant and relieve system pressure before installing or replacing any access valve. Use proper swaging, flaring, or brazing techniques appropriate to the tube material and system requirements. Verify all connections are leak-free with an approved leak detection method before returning the system to service.