SIEMENS Gas Valve Actuator Series SQN
The SQN3… / SQN4… 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 :
– In connection with P-PI or PID controllers, such as the RWF40…
– Directly via the different types of burner controls, such as LOA…, LMO…, LMG… or LFL…
– In connection with 1- or 2-wire control or 3-position controllers
• All types of actuators with:
– Impact-proof and heat-resistant plastic housing
– Screw terminals for the electrical connections
– Maintenance-free gear train, which can be disengaged
– Internal and external position indication
– Easy-to-adjust end and auxiliary switches for setting the switching points
• Holding torque:
– SQN3… 0.8…3 Nm
– SQN4… 6 Nm
• Running time:
– SQN3… 4.5…30 s
– SQN4… 120 s
• Direction of rotation:
– SQN30… counterclockwise
– SQN31… / SQN41… clockwise
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