Offset Rotary Airlock Valves for Cement Plants

UGES offset rotary airlock valves feature an asymmetric rotor placement that reduces material shearing and particle degradation during cement material transfer at U.S. plants. The offset design minimizes the nip point between rotor tips and housing, protecting friable clinker and cement granules from breakage.

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Offset Rotary Airlock Valves Key Specifications

Rotor Design

Offset-mounted rotor with 8 blades positioned asymmetrically within the housing, creating an enlarged inlet zone that reduces material shearing at the rotor-housing nip point.

Housing Material

Ni-hard cast iron housing with asymmetric bore geometry and abrasion-resistant lining, engineered for handling friable cement clinker without particle degradation.

Inlet Size Range

200mm to 500mm inlet flanges with enlarged offset entry zone, allowing cement materials to enter the rotor pockets with reduced shear and compression forces.

Pressure Rating

Differential pressure sealing up to 1.5 bar with offset geometry that maintains effective sealing while reducing material trapping at the rotor-housing interface.

Temperature Range

Standard operation to 120°C with high-temperature variant to 280°C for handling hot clinker and cement materials requiring gentle, low-degradation transfer.

Blade Configuration

8-blade offset rotor with adjustable hardened steel tips and enlarged pocket openings that reduce material compression during the filling and discharge cycle.

Industrial Applications

Clinker Gentle Transfer
Transfers cement clinker from cooler discharge to storage with minimal particle breakage, preserving clinker nodule size distribution for optimal grinding performance.
Finished Cement Low-Degradation Feed
Feeds finished ground cement into packaging lines without generating excessive fines, maintaining product particle size distribution and reducing dust generation.
Additive Material Metering
Meters friable cement additives like pozzolana, slag, and gypsum into blending lines without crushing, preserving additive reactivity and particle characteristics.

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