Circular Mechanical Volume Flow Controllers

For regulating supply or extract air in constant air volume (CAV) systems.

Key Functions

• Easy adjustment: Volume flow rate set directly at the dial indicator — no tools required

• Stable commissioning: Air balance requires no readjustments; pressure variations automatically return flow to the setpoint

Optional Equipment & Accessories

• Actuator: Enables switching between multiple setpoint values

Features

• No external power required

• Reliable, stable construction — maintenance-free operation

• Working pressure range: 50–1000 Pa (0.2–4.0 in.w.g.)

• Compliance: Meets UL181 ductwork construction standards