Adapter for 40L Cylinder Faucet | Left-Hand Thread W 21.7 x 1/14″ SX Female to 1/4″ SAE Male

Safety reduction fitting with left-hand thread (SX / Left Hand), specifically designed for 40-liter cylinders containing flammable and mildly flammable refrigerant gases (safety classes A2L and A3). It allows for a direct and safe connection between the cylinder valve (e.g., R32, R1234yf, R290, R600a, R454B) and charging hoses, piping, or pressure gauge assemblies equipped with a 1/4″ SAE universal fitting. Made of high-strength forged brass, it guarantees the complete absence of gas leaks during transfer, charging, and recovery operations.

Strengths

• Safety Standard: Special left-hand thread designed to prevent accidental connection to cylinder valves intended for non-flammable gases (A1).

• Universal 1/4″ SAE Compatibility: Allows for immediate use with most HVAC/R equipment, scales, recovery stations, and standard pressure gauge assemblies.

• Maximum Sealing & Reliability: Precision CNC machining ensures safe operation even at the high operating pressures of modern refrigerants.

Safety Note: Left-hand threaded (SX) connector, intended exclusively for use with cylinders and valves that comply with Class A2L / A2 / A3 gas standards. Do not force it onto standard right-hand threaded (DX) valves.