The AV-391 linkage ensures a secure stem connection and proper alignment

ensuring a seamless field upgrade without extensive mounting modifications

Precision Flow Control: Ensures accurate isolation of the refrigerant circuit during critical service procedures

delivering exact flow regulation in demanding industrial environments

time-delay construction that allows for temporary surge currents without nuisance tripping

Hydrotherm 02-1552 Gas Valve 30067439-890 The AV-391 linkage ensures aThe Hydrotherm 02 1552 Gas Valve (also identified as 021552) is a heavy duty, 24V standing pilot natural gas valve engineered for precision fuel regulation in commercial and industrial boilers and furnaces. As a high capacity combination gas control, this unit integrates a safety shutoff, manual valve, dual automatic operators, and a pressure regulator into one compact housing. It is a direct OEM match for many Hydrotherm heating systems and cross