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4000 Steel Control Damper Unsealed

The Alumavent 4000 Series standard performance, unsealed steel control damper is specially engineered with a rugged one-piece frame that locks together without bolts, screws or rivets that can vibrate loose. Triple-vee blade design provides maximum strenght. With its non-corrosive bearings, lock together frame and shake proof concealed linkage the 4000 series is very low maintenance and is an excellent choice for use in most low to medium velocity and pressure commercial applications. It is also ideal as a manual balancing damper.

Depth Blades Closed: 5" (127 mm)
Depth Blades Open: 6 3/8" (162 mm)
Material: Galvanized Steel
16 gauge continuous galvanized steel hat channel reinforced with corner braces.
Blade Style:
4000-OB Opposed Blade / 4000-PB Parallel Blade
Blade Thickness: 16 gauge galvanized steel
Bearings: Oilite self-lubricating bronze
Axles: 3/8" square polycarbonate
Frame Style: Duct Mount
Minimum Height:
8" (203 mm) Single Blade / 14" (356) Multiple Blade
Maximum Panel Width: 48" (1219 mm)
Maximum Panel Height: 72" (1829 mm)
Linkage: Concealed in Frame
Standard Finish: Mill Galvanized
Standard Motor Installation:
Side shaft direct drive extendable up to 8"
Operating Temperature Range:-40° F (-40C) to +240° F (+116C)
• Flange Frame
• Belimo actuators available (Consult Alumavent)
• Jackshafts
• End switch for signaling peripheral devices
• Hand Quadrants
• Chain Operation for manual operation spring closed
• Stainless Steel construction