The Static Pressure Regulating Dampers, Model SPRD, are barometric relief dampers used to by-pass excess air pressure on zoned systems. The SPRDs automatically respond to the air pressure in duct as the various zone dampers open and close. As zone dampers close off air to a number of zones, the supply air pressure in the duct system will increase. This increase in air pressure can increase the noise level and reduce the flow of conditioned air through the HVAC Unit. Using the SPRD solves this by automatically compensating for the excess air pressure by opening on the increased pressure and relieving the excess air. The SPRD helps maintain a constant air pressure in the duct system. This reduces noise that is caused by high air pressures and velocities, as well as maintains a constant volume of air (CFM) through the duct system. Maintaining a constant volume of air through the HVAC System keeps the efficiency of the system at its maximum.
Warning: this product contains a chemical known to the State of California to cause cancer. P65Warnings.ca.gov
10.4 Pounds (lbs)
17 Inches (In)
15 Inches (In)
Country of Origin
17 Inches (In)
Static Pressure Regulating
Static Pressure Regulating Damper
Equipment Part List
‡Ductless Stock Up and Save offer valid thru May 31, 2019 at participating CE locations. Account must be active and in good standing condition to qualify for terms. Excludes special pricing and all accessories. Special quotes, OEM parts & job pricing excluded. Not valid on previous purchases. Offer cannot be combined with other offers or programs. Management reserves the right to modify or end this promotion at any time without notice. Orders must be placed and taken delivery by May 31, 2019.