Product Description
Industrial Butterfly Damper
Industrial Butterfly Dampers are innovative methods for controlling and isolation. These dampers are manufactured in various sizes and suitable for high temperature applications. Along with our reliable butterfly dampers, we offer sealing arrangements upto 100% efficiency. Pneumatic, electrical and manual actuations of the dampers can be done with a reduction gear box and hand lever. Our Industrial Butterfly Dampers are made with quality assured metals that are sourced from trusted companies. We offer these in various technical specifications as well as customized options.
Features:
- Excellent for isolation
- Fast operating speeds
- Space needed for supporting the structure
- No eakage to ambient
- Lower cost
- Easy to maintain
| TECHNICAL DETAILS | Accessories (Optional) |
| Type | Butterfly Single Flap | Companion Flanges | MS/SS304 |
| Service | Air Handling | Mounting Hardware | Standard/SS/None |
| Max Working Temperature | 200 C | Gasket | Standard |
| Max Ambient Temperature | 60 C | Limit Switch Box | ½ nos switches with SPDT contact, Mounted on non drive end of the damper. |
| Max Working Pressure | 1000mm wc |
| Leakage efficiency | 99.00% |
| Painting | Alumium |
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| DESIGN PARAMETERS | MATERIAL OF CONSTRUCTION |
| Type | Flanged end | Body & Flange | MS/SS304 |
| Size | 3”-4000mm | Disc/Flap | MS/SS304 |
| Face to face distance | As per Requirement | Shaft | EN-8/SS304 |
| Flange Outer Diameter | As per Requirement | Gland Pkg | Non Asbestos |
| Bolt Hole PCD | As per Requirement | Bearing Type | Ball Bearing/ Bush Brg |
| No. of Holes | As per Requirement | Position Indicator | Mechanical position indicator |
| Bolt Hole Dia. | As per Requirement |
| Hole location | Off center equispaced |
Operation: Single acting/double acting pneumatic cylinders
Butterfly Damper with Sealing System
Butterfly damper with sealing system includes two butterflies. And seal is made in the area between these two discs, injecting close air at a very high pressure. The system appoints a pressurized chamber that ensures valves air-tightness on the conduit. Limited to conduit pressures less than 250 mm of water column, this system makes sure the air tightness of the valve. It is made up of a sealing valve, a dilation compensator, an electro-ventilator and a sealing pipe.
The system has the following actuators:
- On/Off Pneumatic Actuator
- Electric Actuator
- Pneumatic Actuator With Regulation
Insulation: The valves are equipped for an outer insulation of 200 mm. A sufficient space is left free, in order to change the bearings and packing in future without removal of the insulation.
Approximate Dimensions:
| DN | A | B | MANUAL C | ELECTRIC C | PNEUMATIC C | PNEUMATIC C | LINEAR D |
| 200 | 100 | 455 | 575 | 750 | 865 | 525 | 900 |
| 250 | 100 | 480 | 600 | 775 | 890 | 550 | 900 |
| 300 | 120 | 500 | 625 | 800 | 915 | 575 | 900 |
| 350 | 120 | 530 | 650 | 825 | 960 | 600 | 900 |
| 400 | 120 | 555 | 675 | 850 | 1011 | 625 | 900 |
| 450 | 120 | 580 | 700 | 875 | 1036 | 641 | 1100 |
| 500 | 150 | 596 | 725 | 900 | 1061 | 672 | 1100 |
| 600 | 150 | 643 | 775 | 925 | 1100 | 708 | 1100 |
| 700 | 200 | 712 | 825 | 950 | 1125 | 825 | 1199 |
| 800 | 200 | 796 | 875 | 1050 | 1185 | 900 | 1215 |
| 900 | 200 | 816 | 925 | 1150 | 1275 | 950 | 1230 |
| 1000 | 250 | 866 | 975 | 1180 | 1357 | 1038 | 1250 |
| 1200 | 250 | 973 | 1075 | 1340 | 1476 | 1050 | 1375 |
| 1400 | 250 | 1064 | 1175 | 1450 | 1583 | 1384 | 1410 |
| 1600 | 300 | 1180 | 1275 | 1592 | 1734 | 1425 | 1450 |
| 1800 | 300 | 1296 | 1375 | 1645 | 1823 | 1527 | 1502 |
| 2000 | 300 | 1420 | 1475 | 1750 | 1942 | 1615 | 1510 |
Butterfly Backdraft Dampers Specifications
Product Highlight:
- 26 Gauge Galvanized Steel
- Reduced Leakage With Foam Seal
- Perfect For Exhaust Or Intake
- Ideal For Vertical & Horizontal Applications
- Specific Design Opens Easily With Normal Air Flow, Closes With Gravity
Options:
- Offset Pin Damper For Dryer Use
- Manual Spool Dampers
- Spring Loaded Dampers
- Specific Sizes Available Upon Request
- Square To Round Models As Per Customer Provided Measurements
Technical Details:
| Diameter | 3” | 4” | 5” | 6” | 7” | 8” | 9” | 10” |
| Max Height (A) | 3” | 4” | 5” | 6” | 7” | 8” | 9” | 10” |
| Max Length (B) | 6” | 6” | 6” | 6” | 7” | 8” | 8” | 8” |
| Diameter | 12” | 14” | 16” | 18'” | 20” | 22” | 24” | Special |
| Max Height (A) | 12” | 14” | 16” | 18” | 20” | 22” | 24” | TBD |
| Max Length (B) | 9” | 12” | 14” | 16” | 16” | 18” | 20” | TBD |
