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Dust control rotary airlock valve

  • Essai
  • Plan d'accès
Rotary airlock - Bulk material and powder handling

Dust lock rotary airlock valve - Dedusting under cyclone or under filtre

ATEX certification Palamatic Process

To regulate and dose the material conveyed
The dust control rotary airlock valve is suitable for simple and low demanding industrial applications, where its main function is that of a lock.

The dust control rotary airlock valve is of a dedicated design for filter applications. The universal flanges on both sides of the valve are drilled to PN 10 and suitable for both round and square counter flanges.

Operating mode

The dust lock airlock has a very large inlet and a direct drive, providing ample torque to drive the rotor, which has 6 replaceable and adjustable polyurethane blades.

An optional steel fixed bladed rotor is also available.

The standard drive is a Nord helical geared motor, type SK01-F-71L/4, 0.37 kW, IP 55, isol. F, giving 27 rpm at 50 Hz and 32.4 rpm at 60 Hz. Suitable for 230/400V 50 Hz and 278/480V 60 Hz.

The standard model is suitable for handling bulk materials up to a temperature of 70 °C and a maximum pressure differential of 0.5 bar.

The valve is pressure shock resistant up to 10 bar g pressure.

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Equipment advantages

- Minimum air leakage

- Barrier to flame

- Polyurethane rotor blades

- Suitable for both round and square counter flanges

- Versions conforming to ATEX 94/9/EC available, specifications up to Group II Category 1D


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dust collection rotary valve

Rotary valve - Dust collection

The dust control rotary airlock valve is used to reintroduce fines into the conveying line.

The independent dust collection system for pulverulent charged air with reintroduction of fines (no loss and management of suctioned dust): talc, magnesium, Mica, CaCO3.

rotary valve under dust collector

Rotary valve under dust collector

The dust control rotary airlock valve is flanged on a bulk bag discharging station with reintroduction of fines in the process.

dust collection rotary valve

Process ciment et fumées de silice

Aspiration ciment et fumées de silice sur station de vidange de big bags.

screw feeder rotary valve sugar

Rotary valve - Dust collection Palamatic Process

The rotary dust collection airlock valve is used to regulate and measure the conveyed bulk material.

screw feeder rotary valve dextrose alumina dust control

Rotary valve

The rotary airlock valve has a very large inlet for the operation of the rotor with 6 flexible polyurethane blades that are adjustable and interchangeable.

volumetric screw feeder bulk handling

Rotary valve Palamatic Process

Dosing of bulk materials for the supply of the pneumatic conveying.

screw feeder rotary valve dextrose alumina palamatic process

Drop through rotary airlock feeder

For the extraction and dosing of the powdered product.

screw feeder rotary valve dextrose sugar

Drop through rotary airlock feeder Palamatic Process

Flow rate from 2.2 to 19.5 litres/rev.

volumetric screw feeder animal wheat

Flour dosing

ATEX version for explosion and flame resistance. 


Technical specification

The inlet of the valve is square, therefore accommodating both round and square outlets from the vessel that has to be discharged. The angle of the inlet down to the rotor has been kept as steep as possible, to reduce the chance of bridging.

The outlet from the valve is round, so that you can discharge into either a round or square connection.


rotary valve dust control size Palamatic Process


rotary valve dust control layout Palamatic Process


Type Liters/rev.


200 6 200 200 295 340 320 8 x Ø23 14 310 155 22.5° 465 176
250 8,5 250 250 350 406 370 12 x Ø23 15 325 162.5 30° 485 196
Case studies
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