14" Round Modulating Zone One™ Damper ZD-14 112558 Jackson Systems ZD-14 Price: $388.00 Shipping Construction: 22 Ga. Galvanized Steel Linkage: Direct Drive Length: 10" Motor Voltage: 24 Volts AC, 50/60 Hz, 6.5 Watts, 7VA Torque: 35 in-oz to 55 in-oz Temperature Rating: 0 degrees F to 120 degrees F Operating Humididty: 5% to 95% Non-Condensing Timing: 30 Sec. Powered, 8 Sec. Spring Return Static Pressure: Maximum 1.0" W.C." Zone One™ is a modulating stand-alone zone control damper assembly designed to solve
Backdraft dampers with galvanized steel collar and lightweight aluminum damper blades. Spring loaded for positive closure.
9" Round Static Pressure Regulating Damper SPRD9 9" Round Static Pressure Regulating Damper Specs Product Specs Size: 9" Application: Air Quality Motor: Weighted Damper Arm Shape: Round Product Specifications: Product Features: Description Product Overview: Single-blade, steel barometric damper used to bypass excess air when the majority of zone dampers are closed. Counter-balanced weighted arm to control bypass air for zoned systems Available in rectangular/square and round sizes Air pressure in duct
Panasonic Ceiling Radiation Damper
Backdraft Dampers allow air to travel in one direction but not the other. Also, when your fan shuts off, the backdraft damper closes to keep cool air and CO2 in while keeping insects, fungi and dust out. The springs on these devices are designed to minimize any reduction in flow. They seal against a rubber gasket to minimize air leakage.