The 17 Sr automatic air valve is a deluxe, hygroscopic air valve with manual ... the rest of the air vents have a maximum operating pressure of 150 psi. Bell & Gossett, 8200 N. Austin Ave., Morton ...

Bell & Gossett, a Xylem brand, launched its ecocirc® 20-18/ecocirc+ ... systems with thermostatic radiator valves, underfloor heating systems, and thermal solar systems. With the ability to replace ...