GI Volume Control Dampers

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Suitable to control the air volume in ducts in air conditioning. Ventilation and heating systems. Ensures duct system air balancing and also suitable to use in Air handling units, where high air velocities and pressures are ncountered.


Mounting in the branches of air distribution ducts and mouth of the air handling units by means of bolt and nuts.

Construction Details

Frames: High quality galvanized steel frame with standard flange size of 30mm having standard depth of 150mm or as per the client's requirement depth and flange sizes.
Blades: High quality galvanized steel 'V' grooved blades having 150mm height or as per client requested height blades.
Linkage Details: Standard 3mm thick x 20mm Electro Plated Linkages Spindles and bearings: Outer Ø 14.5 mm / Inner Ø 9.3mm Electro plated EN-1A bush bearings and Ø 9.2mm x63mm long electro plated spindle rods or brass bushes as per client's requests.
Locking Quadrants: for manual operated VCD's Heavy gauge galvanized steel handle position indictor with locking screws. Motorized volume control dampers are supplied with high quality knurling electro plated shaft and motor fixing bed provisions to mount the actuator. VCD's will be supplied with suitable torque / model actuators as per client request


Frame with flat frontal face and inner 'V grooved multi blades assembly. Frames are welded and inner blades are connected to the frame by means of spindle rods and bushes. Bushes are available in brass / bronze. All blades are connected by a suitable flat link arrangement with handle to operate the dampers in opposed blades type operation with status indicator lockable screws indicating open or closed position. Available in manual control or motorized control operations, as well as in standard or Non-Standard sizes also available. For motorized operation extended spindle rod will be provided to fix the motor. Actuators available with various torque capacities to meet the large size requirements.

Available Sizes

Avaliable in minimum for 100x100 mm to maximum any standard or non standard sizes