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Industrial Circular Butterfly Flat Dish Damper (ICBFD) – EB Air Series

Posted on the 29 September 2025 by Ebaircontrol @ebaircontrol

Industrial Circular Butterfly Flat Dish Damper (ICBFD) – EB Air Series
Airflow control and airtight systems are vital conditions for myriad successful projects within the present industrial setting. With the increasing demand for HVAC, industrial ventilation, and contamination control, the need for reliable and efficient dampers has grown.

Introduction to Industrial Butterfly Flat Dish Dampers

Therefore, in HVAC systems, they are provided in ducts, pipes, and vent shafts to control, isolate, or block air. Circular Butterfly Flat Dish Damper (ICBFD), in particular, is for a perfect airtight isolation.

The EB Air Series ICBFD is manufactured with strict leakage performance criteria for applications sensitive to commercial, residential and some institutional applications and similar industries where  low leakage is of utmost concern.

The blade seal, consisting of silicone, provides for absolutely no leakage or seals better than the others even under high pressure, which is not the case with ordinary dampers with flat dish designs.

Butterfly flat dish damper

Key Features of EB Air Series ICBFD

The EB Air Series Circular Butterfly Flat Dish Damper reputation was built upon the fact that it  airtight, reliable construction, and application flexible. Some of its unique highlights are

1. Leakage-Free Performance

  • The damper is constructed for leakage performance of up to 10 in wg (2.5 KPa).
  • Therefore, it is perfect for settings where every leak counts against safety or efficiency.

2. Flanged Frame for Easy Mounting

  • The frame has flanges, which may include optional mounting holes.
  • We have, therefore, designed for ease of installation and the ability to fit various flange connections.

3. Tandem Seals for Airtight Control

  • Special tandem seals are provided wherever the drive shaft passes through the casing.
  • These prevent any air leakage from around the shaft, simultaneously permitting smooth operation.

4. Durable Flat Blade Design

  • This round, butterfly-type blade is designed with strength against pressure.
  • It works with the silicone rubber seal to provide a total leakage-free environment around the blade.

5. Replaceable Silicone Seal

  • The blade seal is of silicone rubber, highly resistant to wear and tear.
  • It also allows the seal to be replaced on-site, facilitating ease of maintenance.

6. Ball Bearings for Smooth Operation

  • Ball bearings with grease fittings are mounted externally.
  • This minimizes torque needed to ensure smooth damper movement with little effort.

7. Flexible Actuator Options

The damper lends itself to a wide range of actuators:

  • Pneumatic
  • Electric spring return
  • Fast-acting actuators
  • Manual gear or handwheel
  • This flexibility makes it adaptable to different industries and applications.

Construction Details

Durability and performance are assured in EB Air’s ICBFD thanks to rugged construction and the smart design given.

Frame Material:

  • Available with galvanized steel, satin coat, or stainless steel (304/316L).
  • Provides corrosion resistance in terms of long life.

Blade Seal:

  • Silicone rubber is standard for airtightness.
  • Easy to change on-site if so required by the customer.

Bearings:

  • External ball bearings with grease fitting for lubrication.
  • Ensures smooth rotation and minimal wear.

Blade:

  • Butterfly-type, round, and flat dish construction.
  • Developed working in high pressure.

Sealing & Housing:

  • Tandem seals inside a steel housing.
  • Easy access for inspection and maintenance design.

Test Standards:

  • Tested according to AMCA Standard 500D.
  • Leakage tested up to 10 in wg (2.5 KPa) before shipping.

Benefits of Using EB Air Butterfly Flat Dish Dampers

When an industrial damper is being chosen by any company, considerations for efficiency, cost, reliability, and user-friendliness are taken into account. This makes the EB Air ICBFD the perfect choice without significant operational maintenance.

1. Damper for Airflow Control

The damper is mainly used to provide control and isolation of airflows. Accurate airflow control is always a prerequisite for safe and efficient operations in sensitive settings such as clean rooms or chemical plants.

2. Zero Leakage Promises

Being airtight, the damper with a silicone blade seal and tandem axle seals offers zero leakage, even under high pressure.

3. Energy Conservation

By limiting leakage and by accurate control, the damper saves on energy losses, which has a direct implication on the cost of operation.

4. Rapid Response

In application, EB Air Dampers respond rapidly on occasions where fast adjustments are necessary, thereby ensuring that airflow adjustments are done in real time.

5. Compact & Space Saving Design

Their circular, flat-dish structure makes them easy to hang in limited spaces, which perfectly fits modern industrial setups.

6. Low Maintenance

With the external bearings, replaceable seals, and heavy-duty build, these dampers require very little maintenance, thereby reducing downtime and maintenance costs.

7. Wide Range of Industrial Services

They do not apply to just one kind of industrial application. Some of the more common applications include:

HVAC Systems

  • Industrial Ventilation
  • Process Control Systems
  • Pharmaceutical Manufacturing
  • Laboratories and Clean Rooms
  • Chemical and Petrochemical Industries

Applications of Industrial Circular Butterfly Flat Dish Dampers

The EB Air ICBFD finds usage in many industries, spanning from environments requiring clean atmospheres to an industrial setting:

  • Pharmaceuticals & Cleanrooms:
    To prevent contamination and maintain a sterile environment.
  • Chemical & Petrochemical Plants:
    Handling hazardous fumes while maintaining airtight isolation.
  • Power Plants & Industrial Ventilation:
    Regulating airflow under pressure.
  • HVAC Systems in Large Facilities:
    To maintain energy efficiency and environmental control.
  • Food Processing Plants:
    Maintaining hygienic standards by preventing leakage and contamination.

Why Choose EB Air Control?

There is no doubt that EB Air Control is a name that people trust when it comes to high-performance dampers, and that is why:

  1. Premium Quality Materials:
    Use only materials that are durable and corrosion-resistant, such as stainless and galvanized steels.
  2. Strict Testing Standards:
    Each damper is tested to international standards such as AMCA 500D.
  3. Innovative Engineering:
    Designs are made to focus on high-pressure, zero-leakage operations.
  4. Easy Installation and Maintenance:
    Flanged frames, replaceable seals, and outside bearings make them easy to maintain.
  5. Customization Possibilities:
    Everything is customizable by EB Air, from actuator types to flange hole sizes; the client simply states what they need.
  6. Proven Track Record in Industry Experience:
    Having worldwide proven and strong track records, EB-Air offers dependable and tested solutions for industrial and HVAC applications.

Technical Specifications Summary

The Industrial type Circular Butterfly Damper with the flat metal disk.

The EB-Air-Series

  • Leakage:
    Up to 10-in wg (2.5 KPa) rating
  • Testing Standard:
    AMCA 500D
  • Frame Materials:
    Galvanized, Satin Coat, Stainless Steel 304/316L
  • Seal Materials:
    Silicone Rubber (replaceable)
  • Bearings:
    External ball bearings with grease fittings
  • Actuator Types:
    Pneumatic, electric spring return, manual gear, handwheel
  • Applications:
    Industrial ventilation, HVAC, process control, contamination control

Conclusion

The Industrial Circular Butterfly Flat Dish Damper (ICBFD) EB Air Series is not any random damper; it is a high-performance, airtight isolation device designed for the rigor of industrial environments.

Industries find it worthy of trust due to the zero-leakage performance, rugged construction, and low maintenance of the device, coupled with its versatility of uses, which demand the highest level of efficiency, durability, and airtight performance.

When industries select EB Air Control, they secure their investment into a tried, tested, and innovative solution for managing airflow design.


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