This module allows technicians to expand the capabilities of a base controller by adding an additional stage of equipment control

Common Questions What causes a defrost control like the S1-025-35383-000 to fail

Key Benefits Precision Fit: Specifically designed for 3/16 inch stems found in Johnson Controls valve assemblies

977 Btu/h at standard rating conditions

and Payne family

Siemens Building Technology 658-0012 Valve 328140-751 This module allows technicians toThe Siemens Building Technology 658 0012 is a heavy duty 1" N O pneumatic radiator valve engineered for proportional control in two pipe steam or hot water heating systems. As part of the professional grade Siemens Powertop 658 Series, this angle union valve features a 10 Cv flow coefficient and a field tested 2 6 psi spring range. Designed for the rigors of commercial mechanical rooms, the unit includes a stainless steel stem for enhanced durability