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Rotary Valve

Rotary valves are reliable feeding and sealing devices used in pneumatic conveying systems and dust collection units. They ensure the controlled and continuous transfer of material from hoppers to pneumatic pipelines or process equipment. Thanks to their compact design, rotary valves can be easily integrated into various processes. They provide high feeding accuracy in applications requiring constant flow rates and help maintain air balance, ensuring continuous and stable process operation. With various rotor and housing design options, rotary valves offer durable and efficient solutions suitable for challenging material conditions such as high abrasiveness.

Technical Configuration

  • 6 or 8 compartment rotor options
  • Open or closed end rotor types
  • Rotor material and coating options according to material
  • Cast iron, stainless steel or special coated body options
  • Special configurations providing ease of maintenance

Product Advantages

  • Easy integration with existing facilities and equipment thanks to compact and modular structure
  • High sealing and low air leakage
  • Low maintenance requirement and long service life
  • Easy integration into automation systems
  • Quiet and safe operation
  • Customizable design according to process requirements

Application Areas

Food Industry
Chemical and Petrochemical
Plastics and Polymer production
Cement factories
Mining and Metallurgy
Energy and Waste Management

Product Guide & Technical Information

Rotary Valve Systems: Reliable Feeding in Pneumatic Conveying

Rotary valve is a critical equipment that serves as material feeder and airlock in pneumatic conveying systems. Also known as rotary cell valve, this system provides precise dosage and sealing in pressurized or vacuum conveying lines.

Working Principle

A rotating rotor creates cells inside the cylindrical housing. Material fills the cells from the top inlet. With rotor rotation, material is transported to the bottom outlet. Air tightness is maintained between top and bottom sections during this time. Rotating motion creates continuous and controlled material flow.

Rotary Valve Types

Standard rotary valves are suitable for general-purpose applications. Blow-through type is designed for high-pressure applications. Drop-through type is for applications requiring low pressure and free flow. Offset rotor valves are ideal choice for abrasive materials.

Material and Construction Options

Housing and rotor can be manufactured from cast iron, stainless steel AISI 304/316, or aluminum. Tip seal materials can be neoprene, viton, PTFE, or silicone. Hardened rotor tips provide resistance against abrasive materials.

Technical Features

Rotor diameters vary between 150 mm and 400 mm. Capacities are between 0.5 and 100 m³/hour. Pressure differential can operate between 0.5 bar and 2 bar. Temperature range is between -20°C and +200°C. ATEX-certified explosion-protected versions are available.

Application Areas

Used at feeding and discharge points in pneumatic conveying systems, in dosing and measuring applications, at silo and bunker bottom outlets, in dust discharge in filter systems, and as airlock in vacuum conveying systems.

Maintenance and Durability

Works trouble-free for 8-10 years with regular seal check and replacement. Bearings require regular lubrication. Rotor tip replacement is done every 2-3 years with abrasive materials. Modular design provides easy maintenance and quick parts replacement.

Contact for support on selecting appropriate rotary valve for your pneumatic conveying system.