Rotary Airlock Valve

Product Details:

The Rotary Airlock Valve is a precision-engineered metering and isolation device, designed for the controlled volumetric discharge of bulk solids while maintaining pneumatic system integrity and pressure differentials. Commonly installed at the interface of material collection hoppers, cyclones, or bag filters, it facilitates non-pressurized discharge into pressurized or vacuum conveying systems without compromising airflow balance.

The core operating mechanism consists of a multi-vaned rotor rotating within a close-tolerance cylindrical housing, ensuring minimal air leakage (leakage rate ≤ 1.5%) while enabling uniform feed rates of powders, granules, or pellets. The rotor tips and housing are fabricated from abrasion-resistant, food-grade stainless steel (SS304/SS316) or hard chrome-plated carbon steel, depending on the application.

Key Technical Features:

• Precision-machined rotor with adjustable end clearances (typically 0.1–0.3 mm) for optimized sealing

• Direct-coupled gear motor drive system for smooth, torque-stable operation

• ATEX-certified flameproof variants available for explosive dust environments

• FDA- and cGMP-compliant hygienic models with quick disassembly for tool-less cleaning

• Optional purged shaft seals or airlock pressurization ports to eliminate cross-contamination in sanitary or toxic material processing

• VFD-compatible drive unit for adjustable rotor speed and dynamic flow control

Widely deployed in pneumatic conveying, dust collection, hopper unloading, and batch processing systems, the rotary airlock valve plays a critical role in maintaining airlock isolation, material containment, and process stability in sectors such as pharmaceuticals, chemicals, food processing, cement, and minerals.

Additional Information:

• Item Code: MRAV300SS
• Production Capacity: 4 ton / hour's
• Delivery Time: 3 TO 4 WEEK
• Packaging Details: WOOFDERN

Product Details:

Precision Metering Valve for Bulk Solids Handling in Pneumatic and Gravity Flow Systems

The Industrial Rotary Airlock Valve (10” Nominal Bore) is a heavy-duty metering and isolation device engineered for controlled discharge of powders, granules, and pellets while maintaining an airtight seal between differing pressure zones. It serves as a critical interface in pneumatic conveying systems, dust collection units, and silo discharges, where flow control, pressure isolation, and product integrity are paramount.

Fabricated using high-grade stainless steel or carbon steel, this valve features precision-machined rotor vanes rotating within a tightly toleranced housing, enabling leak-proof material transfer with minimized air infiltration. The 10" NB configuration is ideal for medium-to-high throughput industrial processes.

• Nominal Size:

  • Inlet/Outlet Diameter: 10” NB (250 mm)

• Construction Materials:

  • Body: SS 304 / SS 316 / Cast Iron / Mild Steel

  • Rotor: SS 304 / EN-8 / Hard chrome plated (optional Teflon/PTFE coating for non-stick properties)

• Rotor Configuration:

  • 6, 8, or 10-blade options with open or closed end design

• Drive Mechanism:

  • Direct-coupled geared motor or chain & sprocket drive

• Motor Rating:

  • 1 HP to 3 HP (customizable based on application)

• Speed:

  • 15 to 60 RPM (variable with VFD)

• Operating Pressure:

  • Up to 1 bar differential pressure

• Temperature Range:

  • -20°C to 250°C (with heat-resistant seals and materials)

• Air Leakage:

  • < 2% volumetric leakage, optimized with precision clearance (< 0.25 mm)

• Capacity:

  • Approx. 6 to 20 m³/hr depending on RPM and material bulk density

• Dust Collection Systems: Outlet for baghouses, cyclones, and filters

• Pneumatic Conveying Lines: Maintains airlock while feeding material

• Bulk Solids Handling: Under bins, silos, and hoppers

• Food & Pharma: Transfer of fine powders like flour, sugar, lactose (GMP-compliant design available)

• Chemical & Mineral Processing: Handles abrasive materials like talc, alumina, and silica

• Air-tight rotary seal prevents material backflow and system pressure loss

• Abrasion-resistant construction ensures long service life in tough applications

• Optional flameproof/explosion-proof motor for hazardous zones (ATEX compliant)

• Compact and robust design suitable for retrofitting in existing systems

• Customizable rotor tips: Teflon, rubber, or polyurethane for sticky or corrosive materials

• Easy maintenance: Split body design for quick disassembly and cleaning

Additional Information:

• Item Code: MRAV10nb
• Production Capacity: 3 ton / hour's
• Delivery Time: 2 week
• Packaging Details: woodern

Product Details:

Description of Rotary Airlock Valve

Our organization is extremely engaged in the work of manufacturing a high range of Rotary Airlock Valve which is widely used for dust discharge device. It’s continues discharging function make it more preferable other than similar products available in the market. These products are prepared by following gyro principle so that it can provide high degree of separation. These products are specially designed at Ahmedabad, India by our expert team to provide excellence airlock sealing. Its design is unique, gas leak free and capable of bearing maximum temperature & pressure.
Our organization offers these rotary airlock valves in different sizes ranging from 150 mm to 600 mm as per customer’s requirement with unique & customized solutions. By considering different industrial need and their work process, We are Manufacture of Rotary Airlock Valves with different speed range. These types of valves are used in various industries for different purpose such as solid gas separation and solid metering applications.

Mahavir Industries, based in Ahmedabad, India, is the leading Rotary Airlock Valve Supplier in the India offering a wide range of Material Handling Machinery.

Features :-

·  Rotary Airlock Valve suitable for controlled discharging and feeding of powdery or granular materials from silos, hoppers, pneumatic conveying systems, bag filter houses, or cyclones.

·  This is applied to discharge granulator/powder material or add granulator/powder material either in different positive air pressure or in different negative air-pressure of pneumatic conveying system.

·  Rotor shape can be designed specially according to buyer's request.

·  Minimum gap between blade and body can lock the air efficiently.

·  The driving method can be adjusted easily according to different requirement.

Application :-

Food, Pharma, Chemical, Minerals, Guar Gum, Starch, Cellulose Pigment Colors - Minerals & Ores - Chemicals Technical Products Dyestuffs - Fertilizer - Insecticides – Pesticides& etc.

Material :-

C.I, FC, Aluminum, M.S, Stainless steel& Customer requirement

Machine size Available :-

6” NB to 40” NB

Additional Information:

• Item Code: MRAV14
• Production Capacity: 3000KG
• Delivery Time: 1 MONTH
• Packaging Details: STANDERD

Product Details:

A Rotary Airlock Valve is a precision-engineered bulk material discharge and air-sealing mechanism, designed to meter dry solids or powders from hoppers, bag filters, cyclones, or silos into pressurized or vacuum conveying systems—without disrupting pressure differentials or airflow integrity.

At the core is a multi-vane rotor rotating within a close-clearance cylindrical housing, which ensures minimal system leakage (<2%) while maintaining a consistent volumetric feed rate. The rotor is fabricated with machined vanes or flexible tip options, engineered for abrasion resistance, chemical compatibility, and tight airlock performance in both dilute-phase and dense-phase pneumatic conveying systems.

• Heavy-duty, flange-mounted drive assembly with direct-coupled gear reducer for torque stability

• Stainless steel (SS304/SS316), hard-anodized aluminum, or cast iron construction, depending on material and environmental compatibility

• Optional blow-through or drop-through configurations for system-specific integration

• Shaft sealing with gland packings, air purge, or mechanical seals for hazardous or sanitary applications

• Precision-machined rotor end clearances (typically 0.1–0.3 mm) to minimize product blow-by

• ATEX-certified and explosion-isolated models for combustible dust environments

• FDA- and cGMP-compliant designs available with quick-clean, tool-less access for pharmaceutical or food-grade applications

Deployed in dust collection systems, pneumatic conveying lines, silo discharges, and material feeding stations, the rotary airlock valve ensures continuous product flow, process containment, and system pressure retention—making it a mission-critical component in chemical, food, pharmaceutical, mineral, and plastics processing industries

Additional Information:

• Item Code: MRAV16SS
• Production Capacity: 5000kg / hour's
• Delivery Time: 3 TO 4 WEEK
• Packaging Details: WOODERN

Product Details:

The 6-inch Nominal Bore (NB) Stainless Steel Rotary Airlock Valve is a high-precision volumetric feeder designed to enable controlled transfer of powders, granules, and bulk solids between process chambers while maintaining system pressure integrity and preventing air leakage. Manufactured from 316L stainless steel, this valve is engineered for corrosive and hygienic environments, making it ideal for pharmaceutical, food, chemical, and high-purity applications.

The valve features a robust stainless steel housing with a precision-machined rotor assembly consisting of six vanes, optimized to provide consistent material throughput while minimizing product degradation and leakage. Its compact design facilitates seamless integration into process lines with minimal footprint and maximum operational efficiency.

• 316L stainless steel construction with electropolished surfaces ensuring superior corrosion resistance, hygienic operation, and ease of cleaning

• 6-inch nominal bore (150 mm) designed for medium-capacity flow applications, compatible with standard pipe and ducting systems

• Six-vane rotor precision-engineered for consistent volumetric feeding and minimized air leakage under pressure differentials up to 1 bar (14.5 psi)

• Close-tolerance rotor-to-housing clearances (<0.1 mm) ensuring efficient airlock function and minimal cross-contamination

• Sealed, stainless steel shaft bearings and hygienic packing glands to prevent product ingress and extend maintenance intervals

• Direct drive motor coupled with a precision gear reducer or variable frequency drive (VFD) allowing adjustable rotor speed for flow control and process optimization

• Sanitary design compliant with cGMP and FDA regulations, suitable for sterile and food-grade environments

• Modular construction enabling rapid disassembly for inspection, cleaning, and rotor replacement

• Optional purge ports and flush connections for handling sticky or abrasive materials and preventing buildup

• Explosion-proof (ATEX-certified) variants available for hazardous or combustible dust environments

The 6" NB Stainless Steel Rotary Airlock Valve is engineered for reliable, leak-proof material feeding and airlock maintenance in critical process applications involving pharmaceutical powders, food ingredients, chemical granules, and specialty materials, ensuring product integrity and system efficiency.

Additional Information:

• Item Code: MRAV6INCH
• Production Capacity: 800
• Delivery Time: 2 WEEK
• Packaging Details: WOODER

Product Details:

The 8" Nominal Bore (NB) Stainless Steel Rotary Airlock Valve is a high-precision, heavy-duty metering device engineered for the controlled discharge and airlock sealing of bulk solids such as powders, granules, and flakes. Designed to operate under pressure differentials in pneumatic conveying, dust extraction, and feeding systems, this valve plays a critical role in maintaining process integrity while ensuring consistent material throughput.

Constructed entirely from 316L stainless steel, this rotary valve is ideal for applications requiring superior corrosion resistance, sanitary compliance, and abrasion durability—especially in industries such as pharmaceuticals, food processing, chemicals, and fine powders. The valve’s robust body, combined with precision-machined internal components, provides both operational longevity and hygienic handling of materials.

• Material of Construction: Full contact parts in AISI 316L stainless steel with optional mirror polish (Ra < 0.6 µm) for cGMP & FDA compliance

• Nominal Bore Size: 8" (200 mm) inlet/outlet diameter; suitable for medium-to-high bulk flow rates

• Rotor Configuration: 6- or 8-vane precision-machined rotor with tight clearances (<0.1 mm) to minimize air leakage and maximize volumetric accuracy

• Capacity: Up to 12–18 m³/hr (material-dependent), with customizable rotor speed through gear motor or VFD

• Drive Assembly: Direct-coupled geared motor (flameproof or standard), compatible with Variable Frequency Drives (VFDs) for flow modulation

• Seal Options: Hygienic gland packing, food-grade lip seals, or air purge shaft seals to prevent cross-contamination or material ingress

• Bearings: Outboard, sealed-for-life ball bearings with stainless steel housings; thermally isolated from product zone

• Pressure Differential: Withstands up to 1.5 bar (g) pressure differential across inlet and outlet for use in both positive and negative pressure systems

• Construction Features:

  • Detachable side covers for quick rotor access and CIP (Clean-In-Place) compatibility

  • Optional blow-through or drop-through configuration

  • Explosion-proof / ATEX-compliant designs for combustible dust environments

  • Optional rotor pocket relief vents to reduce shear on fragile products

• Applications: Granulated sugar, starch, lactose, flour, resins, detergents, fine chemicals, and APIs

• Maintains airtight sealing between processing zones to preserve pneumatic conveying system efficiency

• Corrosion and contamination resistant, ideal for sanitary applications

• Customizable rotor profiles to suit abrasive, sticky, or fragile materials

• Compact, modular footprint for easy retrofitting or integration into automated lines

• Complies with GMP, CE, and FDA regulations, suitable for sterile environments

The 8" Stainless Steel Rotary Airlock Valve is a mission-critical solution for accurate material metering and pressure isolation, ensuring safe, reliable, and hygienic handling of dry bulk solids in continuous or batch processes across high-demand industries.

Additional Information:

• Item Code: MRAV150
• Production Capacity: 2 TON
• Delivery Time: 3 TO 4 WEEK
• Packaging Details: WOODERN

Product Details:

The Rotary Airlock Valve is a precision-engineered volumetric feeder designed to maintain a consistent, controlled flow of bulk solids or powders between two processing zones while preserving the pressure differential and preventing air leakage. This valve is critical in pneumatic conveying, dust collection, and bulk material handling systems where maintaining system integrity and minimizing product degradation are paramount.

Constructed with heavy-duty cast iron, stainless steel (316L), or specialized alloys, the rotary airlock valve is engineered for durability, corrosion resistance, and hygienic operation in demanding industrial environments. Its rotor assembly features precision-machined vanes that rotate within a close-tolerance housing, ensuring minimal air leakage and consistent volumetric throughput.

• Precision-machined rotor and housing with tight clearance tolerances (<0.1 mm) to minimize air loss and maximize sealing efficiency

• Heavy-duty construction utilizing cast iron, carbon steel, or 316L stainless steel, chosen based on application requirements for corrosion resistance and hygienic standards

• Variable vane configurations including 4, 6, or 8 vanes tailored to material characteristics and flow requirements for optimal volumetric feeding

• Sealed shaft bearings and packing glands designed to reduce contamination risk and extend maintenance intervals

• Robust drive system powered by an electric motor coupled with a gear reducer or variable frequency drive (VFD) for precise speed control and flow rate adjustment

• Pressure differentials up to 1 bar (14.5 psi) or higher managed without loss of conveyed material or air ingress

• Modular design allowing easy disassembly for cleaning, maintenance, and rotor replacement

• Explosion-proof and ATEX-certified options available for hazardous environments handling combustible dust or volatile materials

• Sanitary designs with polished surfaces and FDA-compliant seals available for pharmaceutical, food, and chemical processing industries

• Integrated purge ports and flush connections to prevent material buildup and ensure continuous operation in sticky or abrasive material handling

The Rotary Airlock Valve is essential for maintaining material flow control while preserving airlocks in pneumatic conveying systems, dust collectors, cyclones, and feeders, ensuring efficient operation and system integrity across chemical, pharmaceutical, food processing, and bulk material industries.

Additional Information:

• Item Code: MRAV250SS
• Production Capacity: 3000KG / HOURS
• Delivery Time: 3 TO 4 WEEK
• Packaging Details: WOODERN

Product Details:

The Mild Steel Fabricated Rotary Airlock Valve is a heavy-duty, precision-engineered device designed for seamless feeding, metering, and isolation of bulk solids in pneumatic conveying, dust collection, and material handling systems. Fabricated from high-quality mild steel, this valve offers excellent structural integrity and durability for handling abrasive, granular, or powdered materials in demanding industrial environments such as cement, chemical, food processing, and plastics.

The valve features a rotor assembly with multiple vanes (typically 4 to 8) that rotate within a precisely machined housing, maintaining an airtight seal to prevent air leakage between process stages. The unit’s rugged construction, combined with adjustable clearances, ensures consistent volumetric feeding and minimizes product degradation, bridging the gap between upstream storage and downstream pneumatic transport or process units.

• Material of Construction:

  • Body and rotor: Fabricated Mild Steel, with options for hard chrome plating or epoxy coating for wear resistance

  • Shaft: High-strength alloy steel with precision-ground journals

• Sizes Available:

  • Nominal diameters from 4" NB to 24" NB and custom sizes

• Rotor Types:

  • Standard 4, 6, or 8 vane rotors depending on flow requirements

  • Option for abrasion-resistant liners or hardened vanes

• Drive System:

  • Robust gearbox coupled with TEFC motor (0.5 HP to 10 HP)

  • Optional variable frequency drive (VFD) for speed modulation and flow control

• Sealing Features:

  • Precision mechanical or labyrinth seals to prevent air leakage and dust emission

  • Optional packing or lip seals for enhanced tightness

• Operating Parameters:

  • Max operating pressure differential up to 1.5 bar (22 psi)

  • Operating temperatures up to 200°C (with material coating options)

• Mounting & Installation:

  • Flanged inlet and outlet for easy integration with ductwork

  • Vertical or horizontal installation capability

• Maintenance & Accessibility:

  • Modular design with removable covers for easy rotor inspection and cleaning

  • Grease lubrication system with accessible grease nipples

• Controlled feeding and metering of powders, granules, and pellets

• Isolation between pneumatic conveying stages to maintain pressure differentials

• Dust collector discharge valve to ensure airtight seal and continuous operation

• Material handling in cement, fertilizer, chemical, plastic, and food industries

• Heavy-duty fabrication ensures long service life under abrasive conditions

• Airtight sealing minimizes product loss and maintains system efficiency

• Customizable rotor and coating options to handle diverse material characteristics

• Easy maintenance with quick access for inspection and servicing

• Flexible integration in both new and retrofit installations

Additional Information:

• Item Code: MRAV450
• Production Capacity: 7000 TON / HOURS
• Delivery Time: 3 TO 4 WEEK
• Packaging Details: WOODERN

Product Details:

Robust Airlock for Controlled Bulk Material Handling and Pneumatic Conveying

The Mild Steel Fabricated Rotary Airlock Valve is a heavy-duty, precision-engineered device designed for seamless feeding, metering, and isolation of bulk solids in pneumatic conveying, dust collection, and material handling systems. Fabricated from high-quality mild steel, this valve offers excellent structural integrity and durability for handling abrasive, granular, or powdered materials in demanding industrial environments such as cement, chemical, food processing, and plastics.

The valve features a rotor assembly with multiple vanes (typically 4 to 8) that rotate within a precisely machined housing, maintaining an airtight seal to prevent air leakage between process stages. The unit’s rugged construction, combined with adjustable clearances, ensures consistent volumetric feeding and minimizes product degradation, bridging the gap between upstream storage and downstream pneumatic transport or process units.

• Material of Construction:

  • Body and rotor: Fabricated Mild Steel, with options for hard chrome plating or epoxy coating for wear resistance

  • Shaft: High-strength alloy steel with precision-ground journals

• Sizes Available:

  • Nominal diameters from 4" NB to 24" NB and custom sizes

• Rotor Types:

  • Standard 4, 6, or 8 vane rotors depending on flow requirements

  • Option for abrasion-resistant liners or hardened vanes

• Drive System:

  • Robust gearbox coupled with TEFC motor (0.5 HP to 10 HP)

  • Optional variable frequency drive (VFD) for speed modulation and flow control

• Sealing Features:

  • Precision mechanical or labyrinth seals to prevent air leakage and dust emission

  • Optional packing or lip seals for enhanced tightness

• Operating Parameters:

  • Max operating pressure differential up to 1.5 bar (22 psi)

  • Operating temperatures up to 200°C (with material coating options)

• Mounting & Installation:

  • Flanged inlet and outlet for easy integration with ductwork

  • Vertical or horizontal installation capability

• Maintenance & Accessibility:

  • Modular design with removable covers for easy rotor inspection and cleaning

  • Grease lubrication system with accessible grease nipples

• Controlled feeding and metering of powders, granules, and pellets

• Isolation between pneumatic conveying stages to maintain pressure differentials

• Dust collector discharge valve to ensure airtight seal and continuous operation

• Material handling in cement, fertilizer, chemical, plastic, and food industries

• Heavy-duty fabrication ensures long service life under abrasive conditions

• Airtight sealing minimizes product loss and maintains system efficiency

• Customizable rotor and coating options to handle diverse material characteristics

• Easy maintenance with quick access for inspection and servicing

• Flexible integration in both new and retrofit installations

Additional Information:

• Item Code: MRAV500MS
• Production Capacity: 75 TON / HOURS
• Delivery Time: 3 TO 4 WEEK
• Packaging Details: WOODERN

Product Details:

Our organization is extremely engaged in the work of manufacturing a high range of Rotary Airlock Valve which is widely used for dust discharge device. It’s continues discharging function make it more preferable other than similar products available in the market. These products are prepared by following gyro principle so that it can provide high degree of separation. These products are specially designed at Ahmedabad, India by our expert team to provide excellence airlock sealing. Its design is unique, gas leak free and capable of bearing maximum temperature & pressure.
Our organization offers these rotary airlock valves in different sizes ranging from 150 mm to 600 mm as per customer’s requirement with unique & customized solutions. By considering different industrial need and their work process, We are Manufacture of Rotary Airlock Valves with different speed range. These types of valves are used in various industries for different purpose such as solid gas separation and solid metering applications.

Mahavir Industries, based in Ahmedabad, India, is the leading Rotary Airlock Valve Supplier in the India offering a wide range of Material Handling Machinery.

Additional Information:

• Item Code: MRAVCI6
• Production Capacity: 1000 KG / HOURS
• Delivery Time: 1 TO 2 WEEK
• Packaging Details: WOODERN

Product Details:

Our organization is extremely engaged in the work of manufacturing a high range of Rotary Airlock Valve which is widely used for dust discharge device. It’s continues discharging function make it more preferable other than similar products available in the market. These products are prepared by following gyro principle so that it can provide high degree of separation. These products are specially designed at Ahmedabad, India by our expert team to provide excellence airlock sealing. Its design is unique, gas leak free and capable of bearing maximum temperature & pressure.
Our organization offers these rotary airlock valves in different sizes ranging from 150 mm to 600 mm as per customer’s requirement with unique & customized solutions. By considering different industrial need and their work process, We are Manufacture of Rotary Airlock Valves with different speed range. These types of valves are used in various industries for different purpose such as solid gas separation and solid metering applications.

Mahavir Industries, based in Ahmedabad, India, is the leading Rotary Airlock Valve Supplier in the India offering a wide range of Material Handling Machinery.

Additional Information:

• Item Code: MRAV200CI
• Production Capacity: 1500 KG
• Delivery Time: 1 WEEK
• Packaging Details: WOODERN

Product Details:

Our organization is extremely engaged in the work of manufacturing a high range of Rotary Airlock Valve which is widely used for dust discharge device. It’s continues discharging function make it more preferable other than similar products available in the market. These products are prepared by following gyro principle so that it can provide high degree of separation. These products are specially designed at Ahmedabad, India by our expert team to provide excellence airlock sealing. Its design is unique, gas leak free and capable of bearing maximum temperature & pressure.
Our organization offers these rotary airlock valves in different sizes ranging from 150 mm to 600 mm as per customer’s requirement with unique & customized solutions. By considering different industrial need and their work process, We are Manufacture of Rotary Airlock Valves with different speed range. These types of valves are used in various industries for different purpose such as solid gas separation and solid metering applications.

Mahavir Industries, based in Ahmedabad, India, is the leading Rotary Airlock Valve Supplier in the India offering a wide range of Material Handling Machinery.

Features :-

·  Rotary Airlock Valve suitable for controlled discharging and feeding of powdery or granular materials from silos, hoppers, pneumatic conveying systems, bag filter houses, or cyclones.

·  This is applied to discharge granulator/powder material or add granulator/powder material either in different positive air pressure or in different negative air-pressure of pneumatic conveying system.

·  Rotor shape can be designed specially according to buyer's request.

·  Minimum gap between blade and body can lock the air efficiently.

·  The driving method can be adjusted easily according to different requirement.

Application :-

Food, Pharma, Chemical, Minerals, Guar Gum, Starch, Cellulose Pigment Colors - Minerals & Ores - Chemicals Technical Products Dyestuffs - Fertilizer - Insecticides – Pesticides& etc.

Material :-

C.I, FC, Aluminum, M.S, Stainless steel& Customer requirement

Machine size Available :-

6” NB to 40” NB

Additional Information:

• Item Code: MRAV750
• Production Capacity: 95 TON / HOURS
• Delivery Time: 3 TO 4 WEEK
• Packaging Details: WOODERN

Product Details:

Rotary Airlock Valve – High-Precision Pneumatic Isolation Mechanism

A rotary airlock valve is a meticulously engineered, pressure-tolerant rotary feeder designed to facilitate the continuous volumetric transfer of bulk particulates or powders between chambers of varying pressure differentials, while ensuring near-zero system leakage and process integrity.

This precision device incorporates a multi-vane rotor housed within a tightly-machined cylindrical stator, optimized with minimal radial and axial clearances to maintain a consistent air seal during operation. The rotor, typically driven by a torque-optimized, speed-controlled electric actuator or gearmotor, indexes through the housing, metering the ingress or egress of materials while preserving pneumatic isolation between upstream and downstream systems.

Engineered from abrasion-resistant alloys or polymer composites, modern rotary airlock valves may include anti-bridging designs, integrated purge seals, explosion isolation features, and self-cleaning mechanisms for use in high-demand environments such as pneumatic conveying systems, dust collection units, pressure differentials in material handling lines, or even ATEX-rated zones for hazardous particulates.

Additional Information:

• Item Code: MRAV500CI
• Production Capacity: 20 nos
• Delivery Time: 2 to 3 Week
• Packaging Details: Woddern Packing

Product Details:

Precision Bulk Material Feeding with Airtight Sealing for Controlled Pneumatic Conveying

The Rotary Airlock Feeder is a critical component in bulk material handling systems, engineered to provide consistent volumetric feeding of powders, granules, and particulate solids while maintaining an airtight seal between different pressure zones. This device is designed to optimize the flow of dry bulk materials from hoppers, bins, or silos into pneumatic conveying lines or downstream processing equipment, ensuring efficient material transfer with minimal air leakage.

Constructed from robust stainless steel (SS 304/316) or mild steel, the rotary feeder features a precision-engineered rotor with multiple vaned pockets that rotate within a tight tolerance housing, creating an effective airlock barrier. The rotor pockets capture fixed volumes of material and deliver them at a controlled rate, which can be adjusted through variable speed drives to match process requirements.

• Rotor Diameter: Typically ranges from 4” to 24” (custom sizes available)

• Material of Construction:

  • Housing and rotor: SS 304/316 for corrosion resistance and hygiene

  • Seals and bearings designed for high durability and low maintenance

• Drive System:

  • Variable frequency drive (VFD) coupled with a gear motor for precise speed control

  • Power ratings from 0.5 HP to 5 HP depending on feeder size and application

• Sealing Mechanism:

  • Labyrinth or mechanical seals to minimize air leakage and material contamination

  • Optional magnetic or mechanical shaft seals for enhanced sealing performance

• Capacity:

  • Feeding rates from a few kilograms per hour up to several tons per hour, depending on material characteristics and rotor size

• Operating Conditions:

  • Temperature range: -20°C to 200°C (higher temperatures with special designs)

  • Suitable for abrasive, sticky, or free-flowing materials

• Mounting:

  • Flanged inlet and outlet for easy integration with hoppers and piping

  • Options for horizontal or vertical installation

• Maintenance Features:

  • Quick-release covers for easy rotor inspection and cleaning

  • Robust bearings with grease or oil lubrication options

• Feeding dry powders and granules into pneumatic conveying systems

• Maintaining pressure differentials in dust collection and filtration units

• Metering and dosing in chemical, pharmaceutical, food, and cement industries

• Handling abrasive and friable materials with minimal degradation

• Airtight sealing capability preserves system pressure and prevents product loss

• Precise volumetric feeding enables consistent process control and material flow

• Heavy-duty construction withstands abrasive wear and corrosive environments

• Adjustable speed control provides flexibility across various materials and processes

• Low maintenance design with easy access to internal components

• Versatile installation options for integration in diverse system layouts

Additional Information:

• Item Code: MRAV12NB
• Production Capacity: 2000KG / HOURS
• Delivery Time: 2 TO 3 WEEK
• Packaging Details: WOODERN