LOUVER (FLAP) TYPE DAMPER
Parallel / Opposed Blade Industrial Flow Modulator
The Louver (Flap) Damper is a heavy‑duty industrial flow control device designed for high‑temperature and harsh environments. Its blades can be arranged in parallel or opposed positions, oriented vertically or horizontally, and customized in size to match duct requirements. Built from high‑strength alloys, it offers tight shut‑off, high efficiency (85–92%), low leakage (<2%), and reliable operation with manual, pneumatic, or electric actuators.
Real Fabrication & Field Units
Flap Damper Gas Flow Diverter
Multi-Flap Industrial Mechanism
Precision Flap Vane Assembly
Key Engineering Advantages
Parallel & Opposed Operation
Custom configurable blade arrangements for either strict ON-OFF flow diversion or linear modulating air control.
Ultra-Low Leakage (<2%)
Machined blade edges and high-temperature seals guarantee less than 2% leakage at full shut-off conditions.
Customizable Blade Orientation
Available in vertical or horizontal shaft orientations to match existing duct geometries and mechanical room constraints.
Harsh Environment Durability
Built with heavy alloy steels to resist abrasive dust, thermal stress, and high-velocity gas flows.
Technical Specifications
| Engineering Parameter | Design Specification |
|---|---|
| MOC | M.S. or S.S |
| Type | Louver (Flap) Damper |
| Size Range (Dia.) | 300 mm to 3600 mm (custom sizes available) |
| Efficiency | 85% to 92% (depending on blade arrangement and orientation) |
| Operating Temperature | Up to 600°C |
| Operating Air Pressure | Up to 1000 mmWC |
| Application | Hot Air Generator / Duct Exhaust Etc. |
| Blade Arrangement | Parallel blade / Opposed blade operation |
| Operation | Manual, Pneumatic, or Electric actuator (as per customer requirement) |
| Blade Orientation | Vertical / Horizontal |
| Blade Design | Optimum number and width of blades selected as per airflow requirement |
| Sealing Efficiency | Tight shut‑off possible with proper blade edge design |
| Blade Width | Depending on airflow and damper size |
| Leakage Rate | Less than 2% at full shut‑off (with proper sealing) |
| Pressure Drop | Low to medium, optimized by blade design |
| Maintenance | Rugged construction, long life, 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.