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Static Pressure Regulating Damper (SPRD)

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  • Counter-balanced weighted arm to control bypass air for zoned systems.
  • Available in rectangular/square and round sizes.
  • Air pressure in duct system increases as zone dampers close, pushing the SPRD open automatically.
  • Arm and weight both adjustable to control amount of air bypassed.
  • Recommended for low pressure systems with less than 0.5 in. wc.
  • For larger systems and tighter pressure control, use modulating dampers and static pressure controller (SPC).
  • Additional weights order number SPRD-W
  • Additional weights can be ordered separately.
  • Available in: Round sizes 7, 8, 9, 10, 12, 14 and 16 in. diameters.
  • Rectangular sizes (width x height)12 x 8, 12 x 10, 12 x 12, 20 x 8, 20 x 10, 20 x 12 in.
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