Siemens Combustion SQM50.480A1Z3 Actuator 320788-703 15-ton thermostatic expansion valve engineered

15-ton thermostatic expansion valve engineered for precision refrigerant metering in commercial R22 systems

As a complete power pack door assembly

ensuring the furnace operates at peak performance throughout the heating season

Enhanced Equipment Longevity: Reduces cyclic thermal stress on heat exchangers by maintaining stable internal conditions between firing cycles

What does 0

Siemens Combustion SQM50.480A1Z3 Actuator 320788-703 15-ton thermostatic expansion valve engineeredThe Siemens SQM50. 480A1Z3 is a high torque industrial combustion actuator engineered for precise damper positioning and fuel air ratio control. Operating on 120V AC, this reversible electromotoric actuator delivers a rated torque of 15 Nm, making it a standard choice for modulating burner control on large scale commercial and industrial systems. With a running time of 30 seconds for 90 degrees, it provides the steady, repeatable motion required for