and Teledyne Laars boiler parts

High-Temperature Durability: Fiberglass construction maintains structural integrity under condensing furnace operating conditions

factory-spec finish on CW Series models

Common Questions Will this thermocouple fix a pilot light that keeps going out

Complementary AG or AH series actuators must be purchased separately

Siemens Building Technology 331-4313 Actuator Els PW 17895 and Teledyne Laars boiler partsThe Siemens 331 4313 No. 3 Pneumatic Actuator is a heavy duty, bellows operated rugged metal actuator designed for proportional control of medium to large dampers and terminal units. Operating within a 3 to 7 psi spring range, this unit provides a consistent 2 3 8 inch stroke for precise mechanical positioning. Engineered with a fixed mounting configuration and a neoprene diaphragm, it maintains high torque performance in demanding HVAC environments.