Caleffi 1/8" Male NPT MINICAL Automatic Air Vent w/ Service Check Valve and Hygroscopic Anti-Drip Cap

MINICAL float type automatic air vents are designed to vent released air from the water while being heated. They are used on manifolds or pipes in sealed heating systems. MINICAL is a standard size air vent that will discharge up to 1.75 SCFM. This MINICAL model is equipped with a hygroscopic safety cap. Cellulose fiber discs serve as the redundant seal. Their volume increases by 50% wet which "causes" the discharge vent to close. This MINICAL model is also equipped with a service check valve which facilitates maintenance operations by shutting off the water flow when the air vent is removed and also allows an easy replacement of the air vent without purging the system. Features: Equipped with Hygroscopic Anti-Drip Cap Specifications: Product Type: Automatic air vent with service check valve Body Material: Brass Max. working pressure: 150 psi Max. discharge pressure: 40 psi Max. discharge rate: 1.75 SCFM Max. working temperature: 230°F Size: 1/8" Connections Type: MNPT