Parallel Blade Volume Damper 3000P-42X26 Smoke-Fire Damper linkage and handle enclosed in

linkage and handle enclosed in valve to assure trouble-free operation * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * SCB41 - 4-way air pattern * SCB31 - 3-way air pattern * SCB41 O or SCB31 O - steel lever operated opposed blade damper * SCB42 or SCB32 - no damper * Tamper proof screws * Standard Color

inner dimension and outside dimension sizes available * Tamper proof screws * Standard Color

SD52 - Transition Box Spiral Pipe Grille (Single Deflection)

Maximum size 14"x14"

Available 4" thru 40" round

Parallel Blade Volume Damper 3000P-42X26 Smoke-Fire Damper linkage and handle enclosed inh3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3. Options * 3000 PLL Low Leak Air Control