Rotary Air Lock Valves

Rotary Air Lock Valves Specification

Dimension (L*W*H)
Variable as per design, typically around 400x400x300 mm

Port Size
Inlet/Outlet flanges as per specification (100 mm to 400 mm standard)

Working Temperature
-20C to 200C (customizable)

Pressure Type
Positive / Negative (Vacuum) applications

Application
For controlled conveying and feeding of dry bulk solids/ airlock duty in pneumatic conveying systems

Body Material
Cast Iron / Stainless Steel

Media
Powders, Granules, Pellets, Dust, Cement, Fly Ash, Plastics etc.

Usage
Industrial

Material
Cast Iron, Mild Steel, Stainless Steel (SS304 / SS316 as per requirement)

Power
Electric motor driven (customized ratings available)

Pressure
Up to 1 bar (max) / Depending on process need

Structure
Rotary feeder with housing & rotor

Size
Customizable as per process requirements

Color
Blue

Weight
Depends on capacity and material; typically 50-300 Kg

Drive Type
Direct Drive / Chain Driven

Drive Motor Rating
0.5 HP to 5 HP (depending on size & capacity)

Leakage Control
Tight clearance between rotor & housing for minimum air loss

Maintenance
Easy access for cleaning & maintenance

Capacity
Up to 50 TPH (customizable to process)

Surface Finish
Machined, Painted, or Epoxy Coated

Sealing Type
Stuffing box or Mechanical seal arrangement

Bearings
Heavy duty ball/roller bearings

Rotor Type
Closed, Open or Adjustable (as per duty)

Operational Duty
Continuous / Intermittent

No. of Vanes
6-8 Arms (typical design)

Mounting Type
Flange Mounted / Foot Mounted

Product Handling Capability
Handles abrasive, non-abrasive, free-flowing, or cohesive materials

Rotational Speed
Variable frequency drive optional for speed control

Rotary Air Lock Valves Trade Information

Minimum Order Quantity
1 Unit

Supply Ability
50 Units Per Day

Delivery Time
2 Months

Main Domestic Market
All India

Rotary Air Lock Valves About

We are reckoned as one of the leading manufacturers and exporters of Air Lock Valves. These valves are suitable for various industrial and engineering applications. Our offered valves are known for tough construction, easy operation and high strength. These valves are widely used in solid gas separation and solids metering applications. Our range of Air Lock Valves is precisely-engineered by incorporating latest technology so that the final output meets with the international quality standards.

Versatile Rotor and Sealing Options

Choose from closed, open, or adjustable rotors to best fit your process, with 6-8 vane arms for efficient throughput. The valves are equipped with either stuffing box or mechanical seal arrangements, ensuring optimal leak protection for both positive and negative pressure operations. All sealing solutions are designed for reliable performance and minimal maintenance.

Durable Construction and Custom Fit

Manufactured from cast iron, mild steel, or stainless steel (SS304/SS316), these airlock valves offer excellent durability in various working conditions. Their surfaces can be machined, painted, or epoxy coated, providing robust resistance to abrasion and corrosion. Sizes and dimensions are fully customizable to align perfectly with your plant's specific requirements.

Efficient Operation and Control

Direct drive or chain-driven setups, with motor ratings from 0.5 HP to 5 HP, allow easy adaptation to different material handling capacities-up to 50 TPH. Optional variable frequency drive enables precise speed control, ensuring smooth and consistent delivery of powders, granules, or pellets. These features ensure efficient, energy-saving operation both in continuous and intermittent use cases.

FAQ's of Rotary Air Lock Valves:

Q: How does a rotary air lock valve control material flow in a pneumatic conveying system?

A: A rotary air lock valve regulates the flow of materials by rotating its multi-vane rotor within a housing, creating air-tight chambers that carry dry bulk solids from the inlet to the outlet. The tight clearances minimize air leakage, maintaining system pressure while delivering a controlled rate of powders, granules, or pellets.

Q: What materials and finishes are available for rotary air lock valve construction?

A: Rotary air lock valves can be constructed from cast iron, mild steel, or stainless steel (SS304/SS316). Surface finishes include machined, painted, or epoxy coated options, ensuring compatibility with abrasive, corrosive, or hygienic process requirements.

Q: When should I select an adjustable rotor or different vane numbers for my application?

A: Adjustable rotors and customized vane numbers (typically 6-8) are chosen based on required throughput, material properties, and process variability. Adjustable rotors cater to processes needing flexible flow rates or handling cohesive materials, while the number of vanes can enhance sealing performance or product consistency.

Q: Where are rotary air lock valves commonly installed within industrial systems?

A: These valves are typically flange- or foot-mounted at discharge points of silos, hoppers, dust collectors, or pneumatic transport lines. They are widely used in industries such as cement, plastics, chemicals, and minerals across India for controlled feeding and airlock duties.

Q: What maintenance procedures are recommended for rotary air lock valves?

A: Regular maintenance involves inspecting clearance between rotor and housing, lubricating heavy-duty bearings, checking seal integrity, and ensuring surfaces are free from material buildup. The design permits easy access for cleaning and service, which helps reduce downtime and prolongs equipment life.

Q: How does the sealing type affect leakage control and process integrity?

A: Stuffing box and mechanical seal arrangements offer tailored solutions for minimizing air and material leakage, depending on operating pressure (positive or vacuum). Proper sealing preserves pneumatic conveying efficiency, containing dust or hazardous materials and maintaining system performance.

Q: What are the benefits of using rotary air lock valves for abrasive or cohesive materials?

A: Thanks to robust construction, tight sealing, heavy-duty bearings, and customizable rotors, these valves reliably handle even abrasive or sticky materials with minimal wear. This translates to extended service life, reduced maintenance, and consistent performance in challenging material handling environments.

Tell us about your requirement