SCHNEIDER ELECTRIC MK-3121 Pneumatic Damper Actuator - Adjustable Stroke - Barber Colman voomi_id_7670 helping to maintain balanced temperature

helping to maintain balanced temperature levels within the system

This normally closed valve operates efficiently and requires a Type MKC-1 electrical coil

and similar installations

automatically opening with a spring mechanism and closing with power

Compatible with Kuhl window mounting kits

SCHNEIDER ELECTRIC MK-3121 Pneumatic Damper Actuator - Adjustable Stroke - Barber Colman voomi_id_7670 helping to maintain balanced temperatureProduct Description The Schneider Electric MK 3121 Pneumatic Damper Actuator, originally from Barber Colman, is designed for precise airflow control in HVAC systems. This actuator features a spring range of 8 to 13 psi and an adjustable stroke between two to four inches, providing flexibility across various applications. When air pressure is lost, the spring mechanism retracts the actuator shaft, ensuring the system's safety and efficiency. It