Access & Service Valves

HVAC Access & Service Valves

The Access & Service Valves category includes the valves used to create safe, reliable connection points for HVAC/R charging, recovery, isolation and diagnostic work. These valves are installed on suction, liquid or discharge lines to give technicians full control of refrigerant flow during service.

Here you’ll find access valves, service valves, sweat and flare connection valves, isolation valves, process tubes, charging stubs, OEM-style service fittings and replacement valve assemblies. These components are used across central A/C units, heat pumps, mini-splits, refrigeration systems, coolers, freezers and packaged units.

• Sweat & flare service valves for suction, liquid and discharge lines.
• Access valves & charging stubs for adding permanent service points.
• Isolation valves for system section shutdown and repair.
• OEM service valve replacements for condensers and heat pumps.
• Process tubes & stubs for factory-style refrigerant access.

When selecting access and service valves, consider line size, connection type (sweat, flare, stub), refrigerant type, maximum working pressure, flow capacity and whether the valve must meet OEM specifications. High-quality valves reduce leaks and support safe refrigerant handling.

Pro tip: Always use new valve caps with intact gaskets after servicing. A properly sealed cap provides a critical secondary barrier and prevents slow refrigerant loss.