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S&P Series 411 and 611 Non-Flanged Horizontal Mount Backdraft Dampers

S&P Series 411 and 611 Non-Flanged Horizontal Mount Backdraft Dampers

Models 411 and 611 are a non-flanged horizontal mount exhaust backdraft damper. The frame is galvanized steel with aluminum blades. The blades have a felt seal on the leading edge for quiet closing and better protection from the weather. Spring assisted to allow blades to open quickly. Ideal for use in roof curbs, duct work, or wall collars when using a fan or power roof ventilator. Only available for horizontal mount exhaust applications.

FEATURES:
• Frame is Galvanized Steel.
• Easy to motorize. (order 411611 motor pack)
• 2" deep frame.
• Blades are 26 gauge Mill Finish Aluminum
• Felt seal on leading edge of blades for quiet closing and better protection from the weather.
• Nylon bushings and stainless steel pivot pins
• Temperature -40F to 180F

model description usually ships price QTY
411008 S&P 8" X 8" series 411 automatic exhaust damper. Max velocity of 2000 FPM. 2-3 Days $38.20
411009 S&P 9" X 9" series 411 automatic exhaust damper. Max velocity of 2000 FPM. 2-3 Days $40.50
411010 S&P 10" X 10" series 411 automatic exhaust damper. Max velocity of 2000 FPM. 2-3 Days $40.50
411011 S&P 11" X 11" series 411 automatic exhaust damper. Max velocity of 2000 FPM. 2-3 Days $41.30
411012 S&P 12" X 12" series 411 automatic exhaust damper. Max velocity of 2000 FPM. 2-3 Days $41.30
411014 S&P 14" X 14" series 411 automatic exhaust damper. Max velocity of 2000 FPM. 2-3 Days $54.50
411016 S&P 16" X 16" series 411 automatic exhaust damper. Max velocity of 2000 FPM. 2-3 Days $55.30
411018 S&P 18" X 18" series 411 automatic exhaust damper. Max velocity of 2000 FPM. 2-3 Days $60.80
411019 S&P 19" X 19" series 411 automatic exhaust damper. Max velocity of 2000 FPM. 2-3 Days $67.00
411020 S&P 20" X 20" series 411 automatic exhaust damper. Max velocity of 2000 FPM. 2-3 Days $75.60
411022 S&P 22" X 22" series 411 automatic exhaust damper. Max velocity of 2000 FPM. 2-3 Days $88.10
411024 S&P 24" X 24" series 411 automatic exhaust damper. Max velocity of 2000 FPM. 2-3 Days $96.60
411026 S&P 26" X 26" series 411 automatic exhaust damper. Max velocity of 2000 FPM. 2-3 Days $111.40
411028 S&P 28" X 28" series 411 automatic exhaust damper. Max velocity of 2000 FPM. 2-3 Days $114.50
411030 S&P 30" X 30" series 411 automatic exhaust damper. Max velocity of 2000 FPM. 2-3 Days $116.90
611034 S&P 34" X 34" series 611 automatic exhaust damper. Max velocity of 2250 FPM. 5-6 Weeks $136.40
611035 S&P 35" X 35" series 611 automatic exhaust damper. Max velocity of 2250 FPM. 5-6 Weeks $136.40
611036 S&P 36" X 36" series 611 automatic exhaust damper. Max velocity of 2250 FPM. 5-6 Weeks $136.40
611040 S&P 40" X 40" series 611 automatic exhaust damper. Max velocity of 2250 FPM. 5-6 Weeks $176.90
611048 S&P 48" X 48" series 611 automatic exhaust damper. Max velocity of 2250 FPM. 5-6 Weeks $222.10
411611 S&P damper motor option. Ships loose. 115/230 VAC 60 Hz power open, spring return motor. 2-3 Days $219.70
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S&P 411 Dampers

S&P 611 Dampers

Do you have questions about the products on this page?

Click on the ? image on the left or this link to ask us your questions!
#1 Q:   Would like to use this in a ceiling/roof ventilation application. Is the 24x24 available with a flange allowing me to attach it to the ceiling?
A:   There is no flange option or any other customization for these. Sorry.

       Asked on 2021-12-04 by John
#2 Q:   How can I order special sized backdraft dampers?
A:   Unfortunately we do not have custom sizes available. Sorry.

       Asked on 2019-10-28 by John
 

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