Any commercial, manufacturing or other office buildings or places need an active ventilation system. This system was difficult to maintain in a closed area, so volume control damper is significantly important to most of the commercial places.

Volume control damper (VCD) controls the airflow by modulating the flow of air which is passed through the damper. The damper sometimes can also be used for the other purposes like for directing an air stream to flow in a particular direction, just by allowing the blades to turn at the precise angle.
Volume control dampers are designed to perform the two basic functions such as proportional and open/closed modulating.

These kinds of VCD are now available in the market in different sizes, shapes, finishes, and materials. So, you can find it in shape from rectangular to round, from damper depth to face velocity and from in-duct to flange.
Anyway, if you are looking for Volume control damper, but unable to understand that what kind of scrutiny damper you should buy, you need to know about the different types, construction, and accessories of VCD. This will help you find the best control damper. So, let’s look at that:

Different construction parts used in VDC

• Frame: Galvanized steel sheet of thickness 1.2mm of high quality is used
• Frame size: Standard flange height should be of 25mm and depth should be of 125mm
• Blades: High quality and skinned aluminum aerofoil profiles
• Shaft Drive: Square and electro-plated drive should have size 12.7mm X12.7mm
• Blade linkage: Nylon gear
• Bushings: Nylon bushing with self-lubrication
• Blade stopper: G.I angle with thickness 0.7mm
• Handle: Hand quadrant with galvanized steel locking

Now, seeing these above parts of VDC, you must be wanted to know about its design and construction. So, let’s see the VDC designs and constructions:

Image Source: rileyair

Design and construction of VDC

• It is intended to use in various ventilating, heating and air-conditioning systems.
• All joints are welded and protected with the use of aluminum spray coating to oppose rusting.
• Toothed nylon gears couple the blades that oppose the operation of the modules.
• Open or closed indication is provided with the hand locking quadrant and three open and intermediate position
• For minimizing the air leakage between the blades foam gasket is sealed.
• Flanged edges are undrilled.
• Dampers without flanges may also be availed when you need to make duct insertion.

Apart from these above construction parts, and designs, you can also have the modification in different parts such as the frame, aluminum frame, bush, gear wheel and blades as per your need.

Various types of VDC

There are different kinds of volume control damper about which we will know in this post below. So, let’s look at that:

1. Motorized Volume Control Damper

It is designed to operate with opposed blade action to provide the better aerodynamics balance control to have the better airflow rates. Its different construction parts and their specifications are shown as below:

Various Motorized Volume Control Dampercomponents and their specifications

• Frame: Galvanized steel sheet of thickness 1.2mm of high quality is used
• Frame size: Standard flange height should be of 35mm and depth should be 125mm
• Blades: High quality and double skinned aluminum aerofoil profiles
• Shaft Drive: Square and electro-plated of size 12.7mm X12.7mm
• Blade linkage: Nylon gear
• Bushings: Self-lubrication with S.S Ball bearing
• Blade stopper: G.I angle with thickness 0.7mm

Image Source: prudentaire

Design and construction of Motorized Volume Control Damper

• It is designed to use in air conditioning system, ventilating and heating.
• All of its joints are welded with the use of aluminum spray to avoid rusting.
• Blades are coupled with the help of toothed nylon gears that oppose the operation of the blades.
• For minimizing the air leakage between the blades, foam gasket is sealedat the edges of the blades.
• Flanged edges are kept undrilled as standard.
• Dampers without flanges are also available for duct insertion.
• Actuators are supplied separately as per your need.
• It also provides extended spindle for on-site resolution of actuators.
• The mechanical linkage is available for stable and hassle-free operation.

2. Slip and Clip Type Volume Control Damper

It is another type of VCD that differs somewhat from the previous VCD shown above. So, let’s look at its different parts and their specifications:
Different parts of Slip and Clip VDC and their specifications
• Frame: Galvanized steel sheet of thickness 0.9mm of high quality is used as the standard size
• Frame size: Standard flange depth should be 200mm
• Blades: High quality and double skinned aluminum aerofoil profiles
• Shaft Drive: Square and electro-plated of size 12.7mm X12.7mm
• Blade linkage: Nylon gear
• Bushings: Self-lubrication with S.S Ball bearing
• Blade stopper: G.I angle with thickness 0.7mm
• Handle: It should have galvanized steel locking hand quadrant

Design and construction of Slip and Clip VDC

• It is also designed for air conditioning system, ventilating and heating.
• All of its joints are welded with the use of aluminum spray to avoid rusting.
• Blades are coupled with the help of toothed nylon gears that oppose the operation of the blades.
• Hand locking quadrant is provided with three intermediate position and open/close indication.
• For minimizing the leakage, foam gasket is sealed all around the blade edges.

These are some types of Volume control dampers and their features. These all features can help you to understand perfectly that what kind of damper you should use to have the proper benefits.
However, if you are looking to purchase such VCD or want to know more other types of VCD, you can search for the VCD provider on the internet and can have the best VCD as per your uses.
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Author Bio:

Me (Amit Sharma) is an all-time professional Writer and very honest sincere and up-front blogger. In general, I try to blog up-front and honest, without being argumentative or confrontive. I take care not to offend, but sometimes, I just want to bash intelligence into some brains.