VCD B 40 series
Type: Square and Rectangular
Blade Type: Aerofoil, Galvanized Construction
Blade Operation : A-Parallel, B-Opposed
BETEC CAD B-40 Series Volume control dampers are square and rectangular type with both parallel blade operation and opposed blade operation, double skin blade design. These heavy duty dampers are used under high pressure and velocity conditions to achieve efficient and rattle free operation.
The square and rectangular type VCD’s are designed for handling maximum air capacities at minimum pressure drop.
Data
Damper Performance Ratings
Pressure – 6” wg (1500 Pa.) Max.
Leakage – Class – II (Refer AMCA 500 D)
Velocity – 3000 fpm ( 15 m/s).
Standard Construction
Frame
6” x 1.18” x 16 gauge (150 x 30 x 1.5 mm) thick rollformed galvanized steel ‘C’ channel.
Blade
6” (150 mm) wide,1.5 mm (16 gauge) thick galvanized steel 3V type roll formed.
Bushes
Bronze.
Mechanical Linkage
Galvanized steel linkages concealed in the frame.
Axles
12 mm square galvanized steel.
Quadrant
Heavy gauge galvanized steel with position indications
Shut, 1/4 , 1/2, 3/4, Open.
Gasket
Neoprene / foam gasket.
JambSeal
0.3mm thick Stainless spring steel
Optional Fittings
Bushes
Brass / Stainless Steel.
Flange Holes
Available customers request, please specify.
Transitions
Neck adaptor for round duct connections.
Alphabet indicates the type of blade operation
A – Parallel Blade.
B – Opposed Blade.
Optional Construction
Frame : Thickness up to 3 mm
Frame Depth : Up to 200 mm
Blade : Thickness up to 3 mm
Blade Width : Up to 150 mm
Frame and Blade Material : Stainless Steel (304/316L)
Note:
Increments of 2” (50 mm) possible with combination of 4’’& 6’’ blade width.
Maximum single module size is 48”x48” (1200×1200 mm).
Damper, width W > 48” (1200 mm) or H > 48” (1200mm), is provided with a center mullion partition.
