CFD Accessories

411
411
Non-flanged horizontal mount exhaust backdraft damper

Non-flanged horizontal mount exhaust backdraft damper

  • Sizes available: 8"W x 8"H to 30"W x 30"H
  • Galvanized Steel frame with aluminum blades
  • Maximum free area velocity - 2000 fpm
  • Optional motor pack available (411611)
  • Use in roof curbs, duct work or wall collars when using a fan or power roof ventilator
  • 411 auto exhaust damper is part of the S&P Ventilation Systems Quickship program and ship out in 3 days
Submittal
MTR 611
611
Non-flanged horizontal mount exhaust backdraft damper
  • Sizes available: 34"W x 34"H to 48"W x 48"H
  • Galvanized Steel frame with aluminum blades
  • Maximum free area velocity - 2250 fpm
  • Optional motor pack available (411611)
  • Use in roof curbs, duct work or wall collars when using a fan or power roof ventilator
Submittal
2727
2727.1 / 2525.5UL / SC-15
Speed Control (Rotary type) (5 Amps)
  • Specially designed for use with S&P ventilators rated at 5 Amps or less
  • Metal housing
  • 5 A, 120 VAC, 60 Hz
Submittal Submittal Submittal
SCR
2828.1
Speed Control (Rotary type) (10 Amps)
  • Specially designed for use with S&P ventilators rated at 10 Amps or less
  • Metal housing
  • 10 A, 120 VAC, 60 Hz
Submittal
556 STD
556
Rear flanged general purpose exhaust shutter
  • Sizes available: 12"W x 12"H to 48"W x 48"H
  • Single or Double Panel
  • Galvanized Steel frame with aluminum blades
  • Maximum free area velocity - 2500 fpm
  • Optional motor pack available (EAS)
  • Use with direct or belt drive exhaust fans
  • For vertical mounting only
Submittal