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 |