How do I set the gap on the Adjustable Air Amplifiers?
To change the gap, loosen the lock ring and back out or tighten the inner sleeve until the desired gap opening is reached. The gap can be set with shim stock to help in obtaining a more accurate setting. After setting the gap opening to the desired dimension, tighten the lock ring to hold it in place. Remove the shim stock from the gap (if shim stock is used).
The Adjustable Air Amplifiers receive their stock flow setting at the factory with the use of a flow meter.