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heat recovery unit & systems at exodraft

bypass-damper-cover

Application

The exodraft Bypass Damper is used in exhaust systems to control the hot flue gases/process air to the Basic Plate heat recovery devices.
A Bypass Damper is used primarily for larger boiler systems, industrial processing plants, or commercial systems. All parts in contact with flue gas are made from stainless steel EN 1.4404. All exterior parts are made from stainless steel EN 1.4301. An integrated electric motor opens and closes the damper. Power supply and start/stop signal come from an external exodraft panel, and is not a part of the Bypass Damper. The Bypass Damper has a safety spring return, causing it to close automatically in case of a power failure.
CHRP-web

Limitations

  • Max. temperature 600°C.
  • The Bypass Damper is not to be used as a draining point in an exhaust system.
  • As a rule, the Bypass Damper is only for indoor installation.
  • Installation outside requires extra shielding.
  • Flue gas / process air must be of a quality (particle free) that will not, over time, cause the
    damper to be filled with residue that can affect the function of the damper.
  • BD250

    bd-250
    Suitable for exhaust temperature up to 600 ° C inlet (peak) 250.5 mm; Output (sleeve) 251.2 mm.
  • BD350

    bd-350
    Suitable for exhaust temperature up to 600 ° C. Input (tip end) 350.5 mm; Outlet (Muffle) 351.2 mm.
  • BD400

    bd-400
    Suitable for exhaust temperature up to 600 ° C. Input (tip end) 400.5 mm; Outlet (Muffle) 401.2 mm.
  • BD500

    bd500
    Suitable for exhaust temperature up to 600 ° C. Input (tip end) 500.5 mm; Output (Muffle) 501.2 mm.
  • Auxiliary contact

    Auxiliary contact for bypass motors
Technical Data
Bypass-Motor Type Power Connection Input (Standby) Weight
BD250 NFA 10Nm 1 x AC24...240V, 50/60Hz /DC24...125V 6 (2,5) W 30 kg
BD350 GK24A-1 40Nm 1 x AC/DC 24V 11 (3) W 72 kg
BD400 GK24A-1 40Nm 1 x AC/DC 24V 11 (3) W 70 kg
BD500 GK24A-1 40Nm AC/DC 24V 11 (3) W 68 kg

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