Coltri BOOSTER OPEN, BOOSTER COMPACT, and MCH20-MCH24 CNG pressure maintenance valve kit. Described by Coltri as "PRESSURE MAINTENANCE VALVE MCH36 [VALVOLA MANTENIMENTO PRESSIONE MCH-36]". For additional information on this kit, see page 32 of the Booster Open Parts List, page 14 of the Booster Compact Parts List, or page 34 of MCH20-MCH24 CNG Parts List; all located under the User Manuals tab.
Nuvair offers authentic parts and equipment manufactured by Coltri Compressors. Beware of inexpensive aftermarket imitations labeled as "replacement," "OEM equivalent," "compatible," or "alternative," as they are not made by Aerotenica Coltri S.p.a. Due to size, weight, or specific requirements, some Coltri products may not be available for online purchase, and others may have extended lead times. To confirm compatibility with your existing equipment or to ensure the product meets your needs, please contact the Nuvair Sales Team for ordering assistance by email or phone.