spring range allows for fine-tuning gas delivery to meet specific manufacturer manifold requirements

including B and E 100 series units

delivering a nominal R22 capacity of 4

Streamlined Maintenance: The cover assembly design allows for a "fast-swap" repair

Siemens Building Technology GRD126.1U Actuator 320788-704 spring range allows for fine-tuningThe Siemens Building Technology GRD126. 1U Actuator is a heavy duty 24V fire and smoke damper actuator designed for two position control in high stakes life safety systems. Delivering 30 lb in torque, this spring return actuator is engineered to meet UL 555 and UL 555S standards, ensuring dampers reach a fail safe position during a power loss or fire event. With a rapid 30 second drive time and a 15 second spring return, it manages combination fire