Volume Control Dampers

STANDARD CONSTRUCTION

FRAME:

150mm x 25mm x 1.5mm (16 Ga.) galvanized steel formed channel for flange connection.

BLADES:

150 mm max. width, extruded aluminum aerofoil type blades.250 mm max.width, formed aerofoil type GI blades.

FINISH:

Mill galvanized.

LINKAGE:

Side linkage concealed in frame for parallel and opposed blade operation.

CASE BEARING:

Nylon bushing for smooth and rattle free operation.

CONTROL SHAFT:

10mmx10mm &12mmx12mm square zinc plated mild steel.

MINIMUM & MAXIMUM SINGLE SECTION SIZE:

100 x 100mm minimum & 1000 x 1800mm maximum.

BODY:

Galvanized steel sheet.Gauge 20 : from Dia. 80mm to 400mm. Gauge 18 : above 400 Dia.

STANDARD CONSTRUCTION

BODY:

Galvanized steel sheet. Gauge 20 : from Dia. 80mm to 400mm. Gauge 18 : above 400 Dia.

BLADE:

Plain galvanized steel sheet.Blades made of 18 Ga galvanized sheet.

FINISH:

Mill galvanized.

CASE BEARING:

Nylon bushing for smooth and rattle free operation.

CONTROL SHAFT:

10x10 mm and 12x12mm diameter zinc plated mild steel.

MINIMUM & MAXIMUM SINGLE SECTION SIZE:

80mm Dia. damper up to 600 Dia. are single blade construction.

SIZE CHART:

 

Size(mm)

 

Length(mm)

Casing Thicknes (mm)

Blade thickness(mm)

Axle & Bearing (mm)

100

120

1

1

10x10

150

170

1

1

10x10

200

220

1

1

10x10

250

270

1

1

10x10

300

320

1

1

10x10

350

400

1

1

12x12

400

450

1.2

1.2

12x12

450

500

1.2

1.2

12x12

500

550

1.2

1.2

12x12

550

600

1.2

1.2

12x12

600

650

1.2

1.2

12x12