Rotary Air Locks in Delhi

Subhawati Ventilation Systems delivers efficient, innovative, and cost-effective air solutions.

Rotary Air Locks

The Rotary Air Lock Valves are also called rotary feeders, rotary valves, or rotary airlocks.

The RAV's primary function is to look the air and discharge the dust or fine/ coarse powder/particles.

In a Bag filter/ ESP Systems, there is a negative pressure inside the bag filter. Therefore, if air or gas leakages at the dust outlet point, the dust will not fall down. We offer the rotary valves to limit leakage.

The rotor of a rotary air lock is a spinning component that controls bulk material flow from upstream to downstream devices. A device motor linked to the valve rotor powers its rotation.


A Rotary Airlock Valve (RAV) locks or prevents the movement of air or gas from one system to the other while maintaining the flow of material through it. In general, a rotary airlock is used to discharge bulk solid materials like coarse or fine powder & cake in the chemical process industry, granules in the cement industry, foods industry etc.

Product Range: Available in 150mm to 800mm, Round and Square Inlet Sizes.

What Are Rotary Air Locks?

A rotary air lock, also known as a rotary valve or rotary feeder, is a mechanical device that controls the flow of bulk materials between different sections of a processing system while maintaining a consistent pressure in the system. It consists of a rotating rotor with vanes or blades that fit tightly inside a housing or casing. These devices are used in various industries for material handling, such as dust collection systems, pneumatic conveying, and industrial processes that involve the movement of particulate matter.

In industrial systems where air pressure plays a critical role, such as in dust collectors, rotary air locks prevent the escape of air from one section to another, ensuring smooth and efficient operation. They allow bulk materials to pass through at a controlled rate while keeping the airflow intact.

How Rotary Air Locks Work

Rotary air locks function by rotating a series of blades (rotor) inside a chamber. The rotor turns within a tightly sealed housing, creating pockets between the blades where material can be fed in from a hopper or a dust collection system. As the rotor continues to turn, these pockets of material are discharged into the downstream section of the process.

The rotary air lock ensures that the air pressure between the inlet and outlet remains consistent, preventing air leakage. This is crucial for maintaining the efficiency of dust collection systems and pneumatic conveyors, as uncontrolled air pressure can lead to operational inefficiencies, higher energy consumption, and equipment damage.

Applications of Rotary Air Locks in Delhi

In Delhi, where industries are required to meet strict environmental regulations, rotary air locks play a vital role in various applications, including:

Dust Collection Systems: Rotary air locks are often used in dust collectors to discharge collected dust and particulate matter while preventing air leakage and maintaining the integrity of the dust collection system.

Pneumatic Conveying: In pneumatic conveying systems, rotary air locks control the flow of bulk materials from one stage of the process to another while maintaining the necessary pressure for material movement.

Pollution Control: Industries in Delhi need to adhere to pollution control norms, and rotary air locks are integral to systems that reduce particulate emissions from industrial processes.

Food, Pharmaceutical, and Chemical Industries: Rotary air locks are used in processes where precise control of material flow is necessary, particularly in handling fine powders and bulk solids.

Key Benefits of Rotary Air Locks

Pressure Maintenance: One of the primary benefits of using rotary air locks is their ability to maintain consistent pressure across different sections of an industrial system. This is particularly important in dust collection and pneumatic conveying systems where air pressure variations can cause inefficiencies.

Air Leakage Prevention: Rotary air locks minimize air leakage between different parts of the system, which is essential for maintaining system efficiency and reducing energy costs. Less air leakage means that industrial ventilation and dust control systems work more effectively, ensuring cleaner air in work environments.

Controlled Material Flow: By controlling the rate of material flow, rotary air locks help prevent blockages and ensure smooth operation. This is especially important in industries where bulk materials, such as powders and granules, need to be handled with precision.

Durability and Low Maintenance: Rotary air locks are designed to withstand harsh industrial environments. They are built with high-quality materials that offer resistance to wear and tear, ensuring long-lasting performance with minimal maintenance.

Customizable Solutions: At Subhawati Ventilation Systems, our rotary air locks can be customized to meet the specific needs of different industries. We offer a range of sizes and configurations to suit various material handling and ventilation requirements in Delhi.

Choosing the Right Rotary Air Locks in Delhi

When selecting a rotary air lock for your industrial process, it's important to consider several factors:

Material Type: The type of material being handled (dust, powder, granules, etc.) will influence the design and size of the rotary air lock.

System Pressure: The air pressure within the system must be taken into account to ensure that the rotary air lock can maintain the required pressure without leakage.

Flow Rate: The required flow rate of materials will determine the rotor speed and configuration of the rotary air lock.

Industry Requirements: Different industries have specific requirements for dust control, material handling, and pollution control. For example, food and pharmaceutical industries often require rotary air locks made from hygienic materials such as stainless steel.

Subhawati Ventilation Systems offers a range of rotary air locks that are tailored to the specific needs of industries in Delhi. Our experienced engineering team works closely with clients to ensure that the rotary air lock selected is perfectly suited to their application, ensuring optimal performance and compliance with environmental standards.

Why Choose Subhawati Ventilation Systems for Rotary Air Locks?

Expertise in Air Pollution Control: Subhawati Ventilation Systems has a deep understanding of the air pollution control needs of industries in Delhi. With years of experience, we offer tailored solutions that meet the stringent environmental regulations of the region.

State-of-the-Art Manufacturing Facility: Our in-house manufacturing facility allows us to produce rotary air locks that meet the highest quality standards. Each product is rigorously tested for durability, performance, and efficiency.

Customization: We provide customized rotary air locks based on the specific needs of your industrial processes, ensuring that the solution fits seamlessly into your existing systems.

Reliable After-Sales Service: Our commitment to customer satisfaction extends beyond the point of sale. We offer reliable after-sales support, including maintenance and troubleshooting services to keep your rotary air locks functioning optimally.

Frequently Asked Questions

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