Air Terminals & Ductworks

Light Troffer

A light troffer is a recessed fixture in dropped ceilings, offering even illumination with fluorescent or LED lights, commonly used in offices and commercial spaces.

Model	Description
LT45-S	Troffer Ceiling Diffuser Single Unit – Side Entry

Ductworks

At GGC Duct we understand what you are looking for… The highest quality HVAC products. We are able to provide this to you by utilizing the latest in computerized fabrication equipment, thus assuring greater accuracy and lower pricing. Our competent, courteous sales staff is ready to serve you the best on your next project. We specialize in fast delivery without quality compromise. Light to heavy gauges fabricated to your order.

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Back Draft Damper

A back draft damper is generally used as a safety or controlling device. In a duct section, it would be mounted on the duct to either relieve an unexpected overpressure or to relive negative pressure downstream.

Model	Description
BDD	Back draft Damper

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Pressure Relief Damper

A pressure relief damper is a back draft damper having an adjustable start-open pressure, that is capable maintaining a relatively constant pressure, at various air flows and which closes upon a decrease in differential pressure.

Modal	Description
PRD-X	Pressure Relief Damper

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Variable Air Volume(VAV)

Bypass or single duct VAV are widely used in HVAC systems for economical operation of air handling units. It can be provided with pressure dependent or independent relief type control system.

Model	Description
VAD90-C	Bypass VAV
VAD90-CH	Bypass VAV with Heater
VAD90-E	Pressure Independent VAV
VAD90-EH	Pressure Independent VAV with Heater

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Plenum Box

It is widely used in HVAC system supply ducts for uniform and proper control of air flow hence resulting in good balancing of all types of outlet air terminal devices such as grilles and diffusers.

Modal	Description
CDB50-X	Plenum Box – Uninsulated
CDB50-I	Plenum Box – Insulated
CDB50-XD	Plenum Box – Uninsulated
CDB50-ID	Plenum Box – Insulated
LSP55-XD	Plenum Box – Uninsulated
LSP55-XI	Plenum Box – Insulated
LSP55-DI	Plenum Box – Insulated with Spinning Damper
LSP55-SR	Plenum Box – Supply and Return Combination

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Sound Attenuators

Sound attenuators are devices to come over noise problems generated by fans and impellers used in HVAC system. Noise produced by AHU and package units, exhaust units with propellers are equally distributed approximately in all directions causing duct born noise breakout or flanking noise.

Modal	Description
SA40-SPD	SA – Std Pressure Drop
SA40-MPD	SA – Medium Pressure Drop
SA40-LPD	SA – Low Pressure Drop

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Fire/Smoke Damper

The combination of the fire and smoke dampers

are widely used as relief damper in case of smoke

and also performs to act as fire damper by closing

the blades of the damper during fire accidents in

HVAC system ducts and other required places, while

smoke dampers without any combination act as relief

type damper for smoke in HVAC duct system and other

required places as well.

Model	Description
FD30-S	Smoke Damper
FD30-FS	Fire & Smoke Damper Combination

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Fire Dampers

Fire dampers are the most commonly used devices in HVAC system ducts for protection of fire from further expansion during fire accidents.

Model	Description
FD20-VA/HA	Fire Damper A Type
FD20-VB/HB	Fire Damper B Type
FD20-VC/HC	Fire Damper C Type
FD20-VCR/HCR	Fire Damper Round Collar
FD20-VCO/HCO	Fire Damper Oval Collar
FD25-A/B	Fire Damper with Sleeves

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Volume Control Damper

Volume control dampers are best and prime devices to control the flow of air in HVAC system ducts.

Model	Description
VD35-SB	VCD Single Blade
VD35-PB	VCD Parallel Blade
VD35-OP	VCD Opposed Blade
MVD-35	VCD W/Motor
VDR35-HP	Round Volume Control Damper
TVD36-A	Toothed Volume Control Damper

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