The SPM is a circular damper designed for precise pressure regulation in ventilation ducts.

The damper is equipped with a motor shelf compatible with the DBA damper motor. The damper blade requires low torque, enabling fast and accurate regulation. When the damper is to be used with the FCLb fume hood controller, it should be ordered as the FC-SPM variant.

Dimensions

The SPM is available in standard sizes of: 100, 125, 160, 200, 250, 315, 400, and 500 mm. 
For pressure and flow regulation in rectangular ducts, the rectangular damper JSPM is used.