Volume Damper Low-Leak OBD 3000-0BDLL-50X20 Specialty Products 4-way reversible door on square

4-way reversible door on square sizes

Diffuser available in sizes 6×6 through 20×20

3% maximum leakage with a pressure differential 3" W

Please contact us for a quote on optional Stainless Steel Construction or Fractional Sizes

Volume Damper Low-Leak OBD 3000-0BDLL-50X20 Specialty Products 4-way reversible door on squareh3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3.