or visible corrosion on the assembly housing

Key Benefits Specifically calibrated for stainless steel trim valves with 3/8" stems to prevent premature wear

it is professional best practice to verify resistance across motor phases to ensure the motor windings are intact to prevent premature failure of the new control circuitry

Robust Materials: Constructed with high-grade steel to resist warping and oxidation under high-temperature conditions

Siemens Building Technology 331-3060 Actuator 323055-751 or visible corrosion on theThe Siemens 331 3060 is a heavy duty No. 6 pneumatic damper actuator designed for reliable proportional or two position control of HVAC systems. Featuring a rugged all metal construction and a 4 inch stroke, this spring return actuator is engineered to drive large outdoor air, exhaust, and face and bypass dampers. With an 8 13 psi nominal spring range, it is specifically optimized for high torque applications, including multi section damper assemblies