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the Weil McLain 381-800-477 7-inch vent damper is the critical OEM component required to maintain proper draft and combustion efficiency
Key Benefits Precise OEM Fit: Drop-in replacement for A
The microprocessor-based design includes a diagnostic LED for troubleshooting and operational status
making it an ideal universal replacement part for plenum installations where space is at a premium
Siemens Combustion SQM40.255R11 Actuator 340793-762 the Weil McLain 381-800-477 7-inchThe Siemens SQM40. 255R11 is a high torque combustion actuator engineered for precise modulation of fuel and air flow in industrial burner systems. Operating on 110V AC, this modulating motor utilizes a 4 20 mA control signal with a 135 Ohm impedance to drive butterfly valves, dampers, and oil pressure controllers. Designed specifically for counter clockwise (CCW) operation, the unit delivers 90 in lb of torque with a 90 degree stroke time of 25
US$ 59.99
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US$ 810.00