Williams P321958 Safety Switch 323055-751 Utilizing this R-22 expansion valve
Baker’s notes & crumb story
Description
Williams P321958 Safety Switch 323055 751 Utilizing this R 22 expansion valve Utilizing this R 22 expansion valve during a 5 ton system retrofit or repair ensures the pressure drop across the orifice is managed correctly under varying load conditions This pneumatic valve actuator assembly is a standard component for maintaining hydronic system efficiency and optimizing zone temperature stability