Constant Volume Venturi Valve - Price Antec Controls VENTURI VV Series Manual

Constant Volume Venturi Valve

Constant Volume Valves are factory calibrated for a selected airflow and can be installed in the field without adjustment for
maintenance free operation. The valve can be adjusted in the field if changes to the airflow are required. The control arm is held
in place with two locking nuts.
Constant Volume Valves are shipped with the linkage disassembled. See instructions above to reassemble the linkage before
installation.
27 | VV – Manual | AntecControls.com
STEP 1
Loosen Nut A, to provide more threaded bar length to adjust Nut B.
STEP 2
Turning Nut B clockwise (as viewed from the inlet) will adjust the control to decrease the
flow rate. To increase the flow rate, adjust Nut B counterclockwise.
STEP 3
Once the correct airflow has been achieved, Nut A should be re-tightened.
NOTE: Dual and Triple Constant Volume Valves are shipped with an assembly on each valve
body. Make sure each assembly is moved by roughly the same amount when adjusting the
airflow.
CAUTION
Adjustments should only be made after the
differential pressure across the valve has
been checked to ensure it is within the
operating range of the valve.
VV