VAPI

EXTRUDED ALUMINUM DAMPERS WITH INSULATED BLADES

STANDARD CONSTRUCTION
MODEL
VAPI
SINGLE BLADE, MAX. HEIGHT OF 11-3/4" (298 MM)

PARALLEL ACTION, MIN. HEIGHT OF 12" (305 MM)

OPPOSED ACTION, MIN. HEIGHT OF 14" (356 MM)
FRAME EXTRUDED ALUMINUM 6063-T6, 0.102" (2.6 MM) THICK
BLADES EXTRUDED ALUMINUM 6063-T6, 0.08" (2 MM) THICK
DRIVE
AXLE
MACHINED 1/2" X 1/2" (12.7 MM X 12.7 MM) SQUARE TO
Ø 1/2" (12.7 MM) ROUND STEEL BAR, BOLTED
AXLES 1/2" X 1/2" (12.7 MM X 12.7 MM) ALUMINUM BAR, PUNCHED
OPERATING TEMPERATURE -40 °C TO 74 °C (-40 °F TO 165 °F)
FRAME
SEALS
SILICONE -62 °C TO 288 °C (-80 °F TO 550 °F)
BLADE
SEALS
SILICONE -62 °C TO 288 °C (-80 °F TO 550 °F)
BLADE INSULATION POLYURETHANE FOAM (R-2.74 FACTOR)
BUSHINGS INNER PART: CELCON (POLYMER)

OUTER PART: POLYCARBONATE
STOPPERS PVC
HARDWARE YELLOW ZINC PLATED
WIDTH MIN. 6" (152 MM)

MAX. 60" (1 524 MM)
HEIGHT SINGLE BLADE

-FLANGED FRAME
MIN. 6-1/2" (165 MM)
MAX. 9-3/4" (248 MM)

-INSERTION-TYPE FRAME
MIN. 6-1/2" (165 MM)
MAX. 11-3/4" (298 MM)

MULTIPLE BLADES

MIN. 12" (305 MM)
MAX. 48" (1 219 MM)
MULTIPLE SECTIONS VARIOUS CONFIGURATIONS AVAILABLE

INTERMEDIATE STRUCTURAL SUPPORT (BY OTHERS) IS REQUIRED FOR DAMPERS THAT CONSIST OF MORE THAN TWO 48" (1 219 MM) SECTIONS IN HEIGHT

AVAILABLE OPTIONS
FRAME FLANGED
BUSHINGS BRONZE

STAINLESS STEEL

BALL BEARINGS
ASSEMBLY FACE AND BYPASS

JACK SHAFT 3/4" (19 MM)
HARDWARE STAINLESS STEEL
FRAME SEALS ROUNDED STAINLESS STEEL STRIP