SQN72 damper actuator - View 1
Siemens

SQN72 damper actuator

Technical Specifications

ParameterSpecification
Product TypeDamper Actuator / Air Damper Motor
SeriesSQN72
ApplicationIndustrial Burner Systems
Control TypeModulating or 3-Position (depending on sub-model)
Operating Voltage220–240 VAC (110V variants available depending on configuration)
Frequency50/60 Hz
Rotation AngleTypically 90° (adjustable depending on configuration)
Torque RangeApprox. 10–20 Nm (varies by version)
Running TimeApprox. 4–30 seconds (depending on model)
MountingDirect shaft mounting
Fuel TypeGas and Oil Burners
HousingIndustrial-grade construction
Duty CycleContinuous industrial operation
ConditionNew / OEM

Notes

Product Overview

The Siemens SQN72 is an industrial damper actuator designed for precise combustion air control in medium to large burner systems.
As part of the SQN70 series, it provides reliable positioning of air dampers to maintain accurate air-fuel ratios in gas-fired and oil-fired industrial burners.

The SQN72 is widely installed in industrial boilers, furnaces, kilns, and thermal oil heaters.
Its robust design, stable torque output, and compatibility with burner management systems make it suitable for demanding industrial environments where combustion efficiency and operational safety are critical.

This actuator supports staged or modulating burner control depending on the specific configuration.


Key Features

  • High torque output suitable for medium and large dampers
  • Accurate air positioning control for combustion systems
  • Compatible with gas and oil burner applications
  • Available in modulating and multi-position versions
  • Adjustable rotation angle (depending on model)
  • Durable industrial housing
  • Designed for continuous industrial operation
  • Long service life with stable performance

Packaging & Delivery

  • Individual industrial protective carton packaging
  • Shock-resistant internal protection materials
  • Standard export packaging for international shipment
  • Fast dispatch for stocked models
  • Shipping via courier, air freight, or sea freight
  • Bulk supply available for OEM and distributor customers

Frequently Asked Questions (FAQ)

Q: What is the Siemens SQN72 used for?
A: It is a damper actuator used to regulate combustion air flow in industrial gas and oil burner systems.

Q: How does SQN72 differ from SQN70 or SQN71?
A: SQN72 is a specific model within the SQN70 series and may vary in torque rating, running time, and control type depending on the exact sub-model.

Q: Is SQN72 suitable for modulating burners?
A: Yes. Many SQN72 versions support modulating burner control applications.

Q: Can it be used in industrial boilers and furnaces?
A: Yes. It is commonly installed in boilers, furnaces, kilns, and other industrial heating equipment.

Q: What fuel types is it compatible with?
A: It is suitable for natural gas and oil-fired burner systems.

Q: Do you provide worldwide shipping?
A: Yes. International shipping is available.

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