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SMOKE DAMPER - MODEL 622 CLASS II


Download Product Catalogue for SMOKE DAMPER – MODEL 622 CLASS II

Features – U. L. rated leakage CLASS II @ 350o F (176°)C Smoke Damper. Meets NFPA 90A & UL555S. STANDARD CONSTRUCTION

FRAME: 4-5/16”(160) deep, 16 gauge (1.6) galvanized steel

BLADES: 6”(152) wide, 16 gauge (1.6) galvanized steel (Bottom blade width may vary depending on damper height)

BLADE AXLES & BEARINGS
AXLES: 7/16”(11) Plated hex
BEARINGS: Bronze oil impregnated

LINKAGE
Opposed blade – Plated steel concealed inside the jamb
Drive blade has a 1” (25) to 6” (152) extendable shaft to mount operator

SEALS: Extruded silicone blade seals and S.S. side seals

MULTIPLE SECTIONS
Maximum Multiple Size is 144”w x 48”h (3658 x 1219)
One actuator on each section (Dynamic Rated)
Available also in 144”w x 96”h (3658 x 2438) (Static Rated)

MAXIMUM U. L. CLASSIFIED LEAKAGE CLASS II SIZES
Single section assemblies – 36”w x 48”h (914 x 1219)

MINIMUM SIZE
6”w x 6”h (152 x 152)

UNDERSIZED
1/4”(102) under ordered size unless specified Exact or Actual

FINISH
Mill

OPERATOR
Refer to UL approved actuator chart (Specify external or internal mounting)

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