Siemens SQN31.252A1700 Damper Actuator application_combustion_control this valve type is normally

this valve type is normally closed for continuous and cyclic operation

The differential pressure switch LG3A4 is an adjustable differential pressure switch as per EN 1854 for automatic burner controls

GW Series Height Width Length Pressure Range GW3 A5 78mm 48

Mounting brackets to replace competitive actuators

24V - 12V ac and dc (not available for all sizes)

Siemens SQN31.252A1700 Damper Actuator application_combustion_control this valve type is normallyThe SQN31 is an electromotoric actuator for use with air dampers and control valves of oil or gas burners of small to medium capacity. Actuators are designed for driving gas or air dampers of oil or gas burners of small to medium capacity, or for load dependent control of the fuel or combustion air volume. SQN31. 252A1700 Features Made of impact proof and heat resistant plastic The housing accommodates: The reversible synchronous motor with gear