Siemens 331-3011 Pneumatic Damper Actuator, No.6, 4″ Stroke, 8-13psi, Universal Mount

Siemens 331-3011, Damper Actuator, Pneumatic, Number 6, 4″ Stroke, 3-13psi, Integrated Pivot, Extended Shaft, UL Rec.

This 331 Number 6 Pneumatic Damper Actuator with integral pivot and pivot post is a rugged, metal-fabricated device that is UL recognized for use on fire dampers and leakage-rated dampers. This actuator has a nominal spring range of 3 to 13 psi, is mounted on a plate which allows extended shaft mounting and has a replaceable diaphragm. This actuator has a 1/8″ NPT female air connection and parts for frame mounting.