


Pneumatic
Conveying Systems
Roots Blower
Diverter
Valve
Gears
3D Modeling
Custom Machines &
Mechanisms
Software
Development


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Rotary Airlock
Rotary airlocks are important
components of pneumatic conveying systems. Rotary airlock is also known as
rotary valve, rotary feeder or airlock feeder. The main function of a rotary
valve is to control flow of bulk solids from silo, mixer, cyclone or hopper
under gravity, pressure and vacuum conditions.

Application Areas
Silo
Discharge:
The rotary valve placed under the silo or dust collection
system is used to control the bulk solid discharge.
Dosage
Control:
By controlling the rotation speed of the airlock feeder,
volumetric metering and dosing of granular solids is achieved.
Pneumatic Transportation:
The airlock mounted under a cyclone is used
for discharging the cyclone.
Pneumatic Transportation:
Rotary valves mounted under cyclones, silos
or hoppers are used to feed the pneumatic conveying line.
Rotary Airlock Models
| FT Series
Flow through rotary airlocks are used in
wide range of applications. |
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| BT Series
Blow through rotary valves are used in
pneumatic transport systems. They are suitable for tranfering sticky
powdered materials. |
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| OS Series
The Off Set type also refered as side
entry type rotary feeders are used for preventing crackage of
delicate materials like sunflower seed and peanut. These
models are also suitable for hard to shear pellets like nylon or
plastic granules. |
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Rotor Types:
Closed End Rotors
Closed end rotors reduce air leakage.
They prevent wear on side covers of airlock when handling abrasive
materials. |
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Open End Rotors
Open end rotors are generally used in
blow through type rotary feeders. |
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Adjustable Bladed
Rotors
Adjustable blades are used in handling
abbrassive materials for longer operational life. |
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Scalloped Rotors
The scalloped rotor design is suitable
for sticky materials. |
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Accessories, Optional
Applications
Stainless Steel Airlock
304 and 316 stainless
steel airlocks are used for handling materials in food and chemistry
industry. |
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Inlet
Slide Gate
The
slide gate is used for adjusting material flow to the rotary valve. |
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Outlet
Adapter
Outlet
adapters are used for connecting the FT and OS series airlocks to
pneumatic conveying pipeline. |
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Dosage
Control System
Different materials can be mixed with precision with the help of
rotary valves. The volumetric dosing system is conrolled by PLC and
computer. Dosage control software lets the user adjust the mixing
percentages. |
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Custom Designed Airlocks
Polimak can design
and produce airlocks for custom applications in very short periods
of time. |
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Handled
Materials
Wheat,
flour, barley, oat, rye, bran, chaff, feed, seed, corn, chickpea, bean,
lentil, pea, soy bean, sesame, rice, pice flour, dried fruit, nuts, peanut,
almond, sunflower seed, cotton seed, grain cereals, chestnut, coffee grain,
coffe powder, sugar, salt, spice, cement, calcite, ash, glass powder, marble
powder, plastic pellets, sawdust
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Polimak
Makina ve Yedek Parça San. Tic. Ltd. Şti.
56.
Sok. No:21 Ostim Ankara TURKEY
Tel: +90
312 3540976 Fax: +90 312 3850394
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