Coltri BOOSTER OPEN fourth stage valve head. Also fits MCH20-MCH24 CNG fourth stage. Third generation version for MCH36 fourth stage. Described in Coltri literature as "HEAD VALVE 4° ST. MCH36 [KVALVOLA TESTA 4° ST. MCH36]". For additional information on this part, see page 14 of MCH22-MCH45 Parts List, page 14 of Booster Open Parts List, or page 18 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.