Coltri MCH6 3rd Stage 120 bar Safety Valve


120 bar (1740 psi) overpressure relief [safety] valve for use on third stage of MCH6 blocks manufactured after 11/2017. Connection: 1/8 in MNPT. SKU 6-05-122 is the replacement part for SKU 6-05-121. Described by Coltri as "120 BAR 1/8 NPT STAGE SAFETY VALVE [VALVOLA DI SICUREZZA 120 BAR 1/8 NPT]".


A Pressure Relief Valve (also known as a Safety Valve, Overpressure Relief Valve, or simply a Relief Valve) limits the amount of pressure in a compressed gas system. Without such a valve in place, pressure could build up beyond what the system is designed for and cause equipment failure. The Pressure Relief Valve opens at a designed “set pressure” to protect the system against failure from being overpressurized. This valve has a designed set pressure of 1740 psi (120 bar).

Coltri Genuine Parts

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Nuvair sells only genuine parts and equipment manufactured by Coltri Compressors. Do not be fooled by cheap aftermarket copies of original Coltri equipment. Items labeled “replacement,” “OEM equivalent,” “compatible,” or “alternative” are not manufactured by Aerotenica Coltri S.p.a.

Some Coltri parts are not available for purchase online. To ensure this genuine Coltri part fits your compressor model/version, please contact the Nuvair sales team for ordering assistance.