Siemens 331-2973 Damper Actuator Pneumatic No.4 Universal 8-13 PSI

Siemens 331-2973 Damper Actuator Pneumatic No.4 is a general purpose, reliable and versatile component used for precise control in HVAC systems. This pneumatic actuator is within a spring range of 8-13 PSI and is suitable for many applications that require accurate modulation of air flow. The model is intended for extended shaft mounting and allows flexibility in installation and compatibility with various damper configurations. It ensures adequate movement for efficient damper positioning with a stroke of 4"s. The Siemens 331-2973 performs the essential duty of modulating damper positions in response to pneumatic signals, controlling the air volume and assuring optimum indoor air quality and energy efficiency.