Rotary airlock valve for bulk material handling Indpro

blow through rotary airlock Valve Indpro

Rotary Airlock Valves (RAVs)

Precision Solutions for Bulk Material Handling

Rotary Airlock Valves (RAVs) play a key role in bulk solids handling systems. They control the flow of powders, grains, pellets, and other dry materials from equipment such as silos, hoppers, cyclones, or filters, while maintaining pressure stability in pneumatic conveying lines. By preserving the airlock, these valves help reduce dust escape, prevent pressure fluctuations, and support efficient and reliable material transfer.

Different industries have different requirements for airlock valves. To address this, RAVs are available in three primary designs: Blow Through, Fall Through (Drop-Through), and Quick Clean. Each is optimized for a particular use case but shares the same focus on efficiency, reliability, and durability.

The iFeed series has been developed for use in demanding conveying conditions where precision and durability are essential. These valves are built with rotors containing 6 to 10 vanes, powered by a geared motor, ensuring smooth and consistent discharge.

Their feed rates typically range from 0.6 to 94 liters per revolution, and they are engineered to operate effectively at temperatures between 30°C and 100°C with standard construction.

Constructed from cast iron or stainless steel, with circular or square flanged connections and an easily serviceable drive unit, they integrate seamlessly into a variety of conveying systems while requiring minimal maintenance.

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Facing flow control issues and pressure drops?

Indpro's iFeed Series of Rotary Air Lock Valves are engineered to be the precision solution. Our valves provide a consistent, measured material feed or discharge from silos, hoppers, or dust collectors while maintaining a critical air seal across positive or negative pressure differentials.

Meet The iFeed Rotary Valves Family

blow Thorough rotary airlock valve - indpro

Blow Through Rotary Valve

Compact. Efficient. Air-Tight.

Used in pneumatic conveying, these valves feed material directly into pressurized lines. Their compact design minimizes leakage and a through tunnel inside the valve allows efficient pickup of cohesive powders.

Fall Through Rotary Valve

Smooth Discharge, Zero Leakage.

The most versatile model suits vacuum, pressure, or gravity-fed systems, discharging material into conveyors, elevators, mixers, or tanks with secure sealing to prevent dust leakage.

Fully enclosed powder bag slitter with dust control system by Indpro

Quick Clean Rotary Valve

Clean in Minutes, Run for Hours.

Designed for industries needing frequent cleaning and product changeovers like food and pharmaceuticals, with tool-free disassembly for quick, easy cleaning and minimal downtime.

Technical Specifications (iFeed Series)

Parameter	Details
Models	Fall Through, Blow Through, Quick Clean
Rotor Vanes	6–10
Feed Rate	0.6 to 94 liters/revolution
Working Temperature	30°C – 100°C (higher ranges available on request)
Material of Construction	Cast Iron, SS304, SS316
End Connections	Circular or Square flanged type
Rotor Design	Adjustable, Synced
Drive	Geared motor
Surface Finish	Painted (CI) or polished finish (SS)
Airlock Function	Designed to minimize pressure loss in pneumatic conveying

Product Features

Construction options in cast iron, mild steel, or stainless steels (SS304/SS316), with special coatings available for abrasive or corrosive materials.
Rotors with 6–10 vanes, engineered for uniform feeding.
Compact design with circular or square end connections to save space.
Special versions are available with Ex-proof or flameproof compatible devices.
Quick clean design allows tool-free removal of the rotor for fast cleaning.
Available with various rotor configurations which are product and application specific.
Available in low pressure (<0.5 bar) and medium pressure (<1.5 bar) designs.
Operating capacity is between 0.6 and 94 liters per revolution, suitable for temperatures up to 100°C.

Benefits:

Maintains pressure integrity in pneumatic conveying, reducing air loss.
Provides reliable sealing for safe, dust-free operation.
Compatible with a wide variety of materials, from powders to abrasive or sticky products.
Offers long service life with relatively low maintenance.
Energy-efficient operation helps lower overall conveying costs.
Quick Clean valves reduce downtime and prevent cross-contamination in sensitive processes.
Flexible drive options (direct, chain, or geared) for easier system integration.

Applications:

Pneumatic conveying: Transport of powders and granules in pressure or vacuum lines, suitable for industries such as plastics, chemicals, and food processing.
Hygienic industries: Food, dairy, pharmaceuticals, and specialty chemicals, where frequent cleaning and product changes are required.
Gravity discharge: Controlled release of material from silos, filters, or hoppers into downstream equipment like mixers or elevators.
Dust collection systems: Reliable discharge from baghouses, cyclones, or filters, while maintaining system airlock.