Ecoflam BLU 10000.1 MD LMV
Weishaupt G70/1-B
314.40 EURexcl. VAT · import VAT and duties on delivery
Key specifications
| Torque, Nm | 20 Nm |
|---|---|
| Drive shaft material | hardened steel |
| Shaft type | 7 |
| Radial bearing force | 420 N |
1272.00EUR
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Description
This Siemens actuator (SKU SQM48.497A9) is a unit from the SQM series that positions air dampers and mixing valves in burner and boiler systems. It provides 20 Nm of torque, and its drive shaft is made of hardened steel (shaft type 7). The actuator is rated for a radial bearing force of 420 N.
Further details
| Gear Transmission | steel spur gears with small backlash and permanent lubrication |
|---|---|
| Mounting Feature | Front of gear train as mounting surface; actuator has 4 fixing holes and 1 elongated hole for positioning pin; alternatively secured from side with 3 self-tapping screws |
Choosing and fitting
When replacing an actuator of this type, match the torque, running time, control signal, angle of rotation, and shaft or coupling pattern to the original. Also confirm whether auxiliary switches are required for feedback or interlock. Mounting is done on the front of the gear train using four fixing holes and one elongated hole for a positioning pin, or from the side with three self-tapping screws.
Signs of failure
Common failure modes for this kind of actuator are stripped gear trains, failed end switches, and seized valve stems after prolonged standstill. These faults typically become apparent when the damper or valve no longer moves to the commanded position or when the actuator gives incorrect position feedback. Checking the actuator includes verifying free rotation of the shaft, operation of the end switches, and the integrity of the gear train.
Manufacturer documentation
All specifications
| Torque, Nm | 20 Nm |
|---|---|
| Drive shaft material | hardened steel |
| Shaft type | 7 |
| Radial bearing force | 420 N |
Part numbers
| SKU | SQM48.497A9 |
|---|---|
| Additional article | 884.712.001 |
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