| 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 |
