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Rotary Airlocks & Feeders

REES Rotary Airlocks are used in dust collection and pneumatic conveying systems at gravity-fed discharges of cyclones and filters.  Rotary airlocks hold pressure or vacuum in the air system while continuously feeding the separated material to a transfer system or storage bin.  This prevents loss of air and maintains a flow of material between different process components and pressures.

REES Airlocks are used in low pressure air systems where the bulk material flow rate is high.  Flexible rubber tipped rotors help reduce the chance of  material plugging and allow for wiper blade replacement. The fabricated steel housing and chain-drive components are built to withstand continuous heavy duty on-line operation. 

For lower material flow rate or lighter duty applications, Rees-Memphis provides cast iron airlocks in direct- drive or chain-driven arrangements.

Contact Rees-Memphis for more information on Rotary Airlocks & Feeders.

Rotary Feeders

Rotary Feeders are used to regulate the flow of materials from one chamber to another sharing the same pressure.  Feeders are required in high pressure systems and are common in the pneumatic conveying of dry free-flowing product materials such as powders, granules, crystals or pellets.

Airlocks can also be used as feeders to minimize system air loss while regulating the flow of material between chambers have differing pressures.

Design Specifications

In determining the best airlock or feeder to use, our salesmen must consider several application parameters to determine the design specifications including:    
  • Material characteristics 
  • Bulk density of  material (lbs./cub.ft.)
  • Maximum particle size (microns)
  • Material flow rate (lbs./hour)
  • Airlock, feeder, or both
  • Temperature & humidity above & below airlock
  • Pressure reading above & below airlock
  • Size of conveying line

REES Model RVC Rotary Airlock

Standard Features 
Rotary Airlocks for Pneumatic Conveying

Housing

10 GA carbon steel housing
3/8” removable side plates w/ gaskets
Round flanged inlet and outlet
All-welded construction
Smooth interior surface for free flow of waste
Lifting lugs for easier install

Rotor

3/8” Heavy duty rubber wipers
¼” vane mounting plate reinforced w/10 GA CS
Externally mounted, 4-bolt flanged bearings

 

Drive Assembly

Chain and sprocket drive with guard
Heavy duty worm gear reducer
TEFC motor w/ C-faced direct mount
Easily adjustable chain tension bolts with lock nuts

Model No.
Dia. In
& Out
No. Of Vanes
Motor
RPM
Cubic Ft.
Per Rev.
Cubic Ft. / Min.
@ percent Displacement
Weight
   
 
 
 
   
 
 
 
40%
 50%
 60%
 100%
 
RVC-12
12"
4
2 H.P. - 3 PH.
30
2.4
28.8
36
43.2
72
450 lb.
RVC-16
16"
6
2 H.P. - 3 PH.
25
5.5
55
68.8
82.5
137.5
750 lb.
RVC-20
20"
6
3 H.P. - 3 PH.
20
9.8
78.4
98
117.6
196
950 lb.
RVC-24
24"
6
3 H.P. - 3 PH.
20
15.8
126.4
158
189.6
316
1325 lb.
RVC-30
30"
6
5 H.P. - 3 PH.
15
44.2
265.2
331.5
397.8
663
1500 lb.