Mass-Produced Products
Star Feeder / Rotary Valve / Airlock
Airlock solutions for pneumatic conveying systems and dust collection systems.
- ✓ Airlock Function
- ✓ High Capacity
- ✓ Pressure Resistance
- ✓ Versatile Use
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Star Feeder / Rotary Valve / Airlock
A rotary valve or airlock is equipment that transports material in chambers between a rotating rotor and housing,
while maintaining the pressure differential between two environments.
Typically used in:
- Pneumatic conveying systems
- Dust collection systems
- Silo discharge
- Filter outlets
- Feeding lines
Key Features of Rotary Valves
| Feature | Description |
|---|---|
| Main Function | Prevent air or gas leakage during material transfer (acts as an airlock). |
| Working Principle | As the rotor rotates inside the housing, material fills between the vanes. During rotation, this material is discharged from the bottom outlet. Air passage between upper and lower sections is minimal. |
| Construction Material | Usually manufactured from cast iron, stainless steel or carbon steel. |
| Rotor Type | Can be 6, 8 or 10 vane. Some models have rubber or teflon coated vanes. |
| Sealing | Low tolerance clearances on side surfaces; supported by seals or air curtain if needed. |
| Drive System | Driven by electric motor + gearbox combination. |
| Capacity | Depending on size, provides material flow from a few liters to hundreds of liters per minute. |
| Pressure Resistance | Generally operates air-tight at pressure differentials up to 1-1.5 bar (higher in some special types). |
| Connection Types | Can be flanged, square, round or custom connections. |
Application Areas
- Pneumatic conveying lines
- Dust collection systems (filter bottom outlet)
- Silo, bunker, cyclone outlets
- Food, chemical, cement, plastic, feed, energy sectors
Product Features
Airlock Function
Prevents air or gas leakage during material transfer and maintains pressure differential
High Capacity
Material flow from a few liters to hundreds of liters per minute
Pressure Resistance
Air-tight operation at pressure differentials up to 1-1.5 bar
Versatile Use
Used in pneumatic conveying, dust collection, silo discharge and filter outlets
Technical Specifications
Material Cast iron, stainless steel or carbon steel
Rotor Type 6, 8 or 10 vane
Pressure Resistance 1-1.5 bar (higher in special types)
Drive System Electric motor + gearbox
Connection Types Flanged, square, round or custom
Sealing Low tolerance gaps, sealed or air curtain
Star Feeder - Detailed View (Click on numbers for parts)