BUTTERFLY DAMPER
Reinforced Disc Flow Regulating & Isolation Damper
The Butterfly Damper is a compact, flange‑mounted flow control device used in air and gas conduit systems. It features a flat disc with reinforcing ribs that rotates on semi‑shafts to regulate airflow. Available in sizes from 100 mm to 3800 mm, it offers high efficiency (92–98%), low leakage (<2%), and minimal pressure drop. Built from durable fabricated materials, it ensures reliable performance in high‑temperature environments with easy installation and low maintenance needs.
Real Fabrication & Field Units
Stainless Steel Butterfly Disc 3D Render
3-Way Butterfly Damper System
Flanged Butterfly Damper Assembly
SS Butterfly Damper Precision Disc
Key Engineering Advantages
Reinforced Disc Shutter
Flat round disc with integral structural ribbing prevents deflection and vibration under high differential pressures.
92% - 98% Flow Efficiency
Minimal aerodynamic drag in open position ensures high volumetric flow rates with minimal fan energy consumption.
Compact Flange Mounting
Narrow face-to-face dimensions allow simple installation between standard duct flanges in tight space constraints.
Low Maintenance Semi-Shafts
Precision-machined split shafts with high-temp self-lubricating bearings eliminate continuous grease maintenance.
Technical Specifications
| Engineering Parameter | Design Specification |
|---|---|
| MOC | M.S. or S.S |
| Type | Butterfly Damper |
| Size Range (Dia.) | 100 mm to 3800 mm (larger sizes available on request) |
| Efficiency | Flow efficiency 92–98% depending on disc size and sealing |
| Operating Temperature | Up to 600°C |
| Operating Air Pressure | Up to 1000 mmWC |
| Application | Hot Air Generator / Duct Exhaust Etc. |
| Design | Flat round disc with extra support, rotates on two semi‑shafts |
| Operation | Manual, Pneumatic, or Electric actuator |
| Disc Construction | Flat disc shutter, rigid for operational pressures |
| Leakage Rate | Less than 2% at full shut‑off (with proper sealing) |
| Pressure Drop | Very low due to flat disc design |
| Maintenance | Simple construction, easy installation, minimal servicing required |
Complementary Damper Solutions
COFFEEPOT DAMPER
The Coffee Pot Damper is a strong and reliable safety damper used in HAG and attached on hot-air ducting systems. It is designed to handle high temperature and pressure conditions. The damper can be operated by a pneumatic cylinder or electric actuator, while the counterweight arrangement helps in quick opening during emergency situations. Its simple, robust design makes it suitable for safe industrial operation.
MULTILOUVER DAMPER
The Multilouver Dampers are used for airflow regulation and isolation in ventilation, fans and industrial air-handling systems. The damper has multiple adjustable louvers mounted in a strong fabricated frame, which helps in smooth and uniform air control with low pressure drop. Louvers are connected through an external linkage for easy and synchronized operation. The damper can be provided with manual or motorized operation and customized in size, material and arrangement as per application requirements.
GUILLOTINE DAMPER
The Guillotine Damper is a heavy-duty damper designed for reliable ON-OFF isolation of air, gas and process ducting systems. It is available in Round and can be manufactured as per required duct/flange dimensions. The damper is suitable for high-temperature and industrial applications where low pressure drop, easy inspection and maintenance are required. When fully open, the passage remains clear, resulting in minimum load loss.
Custom Built for Your Exact Flange & Duct Dimensions
Send us your project drawings or operating temperature and pressure profiles. Our engineering team prepares full technical proposals and dimensional GA drawings within 24 hours.