Siemens Building Technology 147-2000 Pneumatic Positioning Relay

Siemens 147-2000 Pneumatic Positioning Relay is a essential part which guarantees the prcision of the control in HVAC systems. The damper actuators and other pneumatic control devices are controlled by pneumatics in this relay. With 1/8” NPT air connections and a spring range of 3 to 12 PSI, it will operate precisely and reliably at pressure within it’s pressure range, and it is small but effective so it will fit easily into tight locations. The relay converts pneumatic signals to proportional control for a variety of HVAC equipment including air handling units and variable air volume systems.It operates from 35°F to 160°F, and is durable and built to take the rigors of HVAC system operation.tic control devices