Refrigeration & AC Valves for HVAC Systems

Service valves, ball valves, expansion valves, Schrader valves, shut-off valves, and line tap valves for air conditioning and refrigeration installations. Stocked from UK with same-day dispatch and trade pricing.

Ball Valves & Shut-Off Valves

Henry ball valves with integrated Schrader valve in 1/4" and 5/8" for refrigerant line isolation and service access on AC and refrigeration systems. Mastercool 90° manual shut-off valves in red (high-side) and blue (low-side) with 1/4" flare connections and flexible hose for manifold and recovery machine connections. Mastercool straight manual shut-off valve hose adapters (set of 3) for positive isolation at hose connections.

Schrader Valves & Caps

1/4" flare Schrader caps for sealing service port access valves when not in use. Mastercool R1234yf universal valve core master kit for replacing valve cores on next-generation AC system service ports. Valve core replacement is required when service ports leak or fail to seal correctly after repeated use.

Expansion Valves

Sporlan 1/2" x 7/8" thermostatic expansion valve (TXV) with 60" capillary tube for commercial refrigeration applications. TXVs control refrigerant flow into the evaporator based on suction line superheat — correct sizing and setting is critical for system efficiency and compressor protection.

Line Tap Valves

Diversitech 5/16" refrigerant line tap valve for accessing sealed refrigerant lines without cutting or brazing — used for diagnostic pressure checks and refrigerant access on systems without service ports. Use with care and only where permanent service access is not practical.

Browse all fittings and connectors including brass flare fittings and copper solder fittings. Manifold gauges and charging hoses for use with service valves are stocked separately. Trade accounts available — call 0161 775 1190 for volume pricing.