|
|
|
|
Manufacturer's hard-to-find website: www.rotaryvalve.com
|
12 x 12"
Rotary with
2 Hp Drive System
|
Rotary Airlock Feeders are
used in pneumatic conveying systems, dust control equipment, and as volumetric feeders to
maintain an even flow of material through processing systems.
The Roto-Flo valve is used as an airlock transition point, sealing
pressurized systems against loss of air or gas while maintaining a flow of material
between components with different pressures.
|
Roto-Flo units are also widely used as
volumetric feeders for metering materials at precise flow rates from bins, hoppers or
silos into conveying or processing systems.
Roto-Flo Rotary Airlock Feeders have wide application in industry
wherever dry free-flowing powders, granules, crystals or pellets are used. Typical
materials handled with Roto-Flo units include: cement, sugar, minerals, grains, plastics,
dust, fly ash, flour, gypsum, lime, coffee, and cereals, etc.
Note: The rotary air lock supplied with your vacuum system will
likely be fitted with "seal strips" on the rotor tips to provide a better vacuum
seal while passing "unusual" shaped particulate with a higher reliability.
Material Flow Rate Capacities
Capacities in Cubic Feet Per Minute
(based on 6 vane open end rotor and 100% fill factor)
Size |
6V
cf/rev |
8V
cf/rev |
10
rpm |
15
rpm |
20
rpm |
25
rpm |
30
rpm |
40
rpm |
50 rpm |
6" |
0.07 |
.065 |
0.70 |
1.05 |
1.40 |
1.75 |
2.10 |
2.80 |
3.50 |
8" |
0.18 |
0.17 |
1.80 |
2.70 |
3.60 |
4.50 |
5.40 |
7.20 |
9.00 |
10" |
0.36 |
0.34 |
3.60 |
5.40 |
7.20 |
9.00 |
10.80 |
14.40 |
-- |
12" |
0.64 |
0.61 |
6.40 |
9.60 |
12.80 |
16.00 |
19.20 |
-- |
-- |
14" |
1.05 |
1.01 |
10.50 |
15.75 |
21.00 |
26.25 |
31.50 |
-- |
-- |
16" |
1.62 |
1.55 |
16.20 |
24.30 |
32.40 |
40.50 |
-- |
-- |
-- |
18" |
2.29 |
2.20 |
22.90 |
34.35 |
45.80 |
57.25 |
-- |
-- |
-- |
A closed
end rotor will deliver about 10% less displacement in cu/ft per revolution. Vacuum systems
are usually sized for 70% volumetric flow or less.
Standard Features
Heavy Duty Series
| Heavy
Duty Flanges |
Provided to minimize possible
distortion and pre-drilled to simplify installation |
| Air
Tight Seal |
Close tolerance machining of
internal mating surfaces to provide effective seal rated at 15 PSIG. |
| Pre-Lubricated
Bearings |
Lifetime seal ball bearings for both
standard and heavy duty type airlocks |
| Oversize
Shaft |
Extra heavy duty to provide maximum
torque. Automatic torque limited or shear pin |
| Full
Flow Design |
Rectangular tapered inlet and outlet
provides maximum flow to feeder and rotor pockets |
| Adjustable
Packing Glands |
Heavy duty models are equipped with
externally adjusted packing glands to prevent bearing contamination. Graphite impregnated
asbestos is standard. |
| Rigid
Mounting Bosses |
All models and all sizes have
standard mounting bosses. |
| Cast
Iron Construction |
Housing and head plates are of close
grain cast iron construction for maximum structural stability. |
| High
Capacity Rotors |
Six and eight vane open end rotors
machined to close tolerance are standard. |
Optional Equipment
| Bearings |
Re-greaseable and High Temperature Bearings available for special
applications |
| Packing
Glands |
Teflon, chevron and other special materials can be specified. |
| Lantern
Rings |
Optional |
| Air Purge |
Optional to help prevent leakage and protect packing |
| Inspection
Door |
Feeders 10 x 10 and larger, can be provided with removable inspection
panels to facilitate maintenance. |
| Special
Construction |
Airlocks can be furnished in cast stainless steels, carbon steel, aluminum
and other special alloys. |
| Special
Rotors |
Shallow pocket, closed end, multiple vane rotors are available in a wide
range of displacements. Seal strips supplied in neoprene, Teflon®, urethane, stainless
steel or brass can be mounted on rotor blade tip and ends. They can be quickly adjusted or
replaced. Beveled edges and hard facings also available. |
| Interior
Coatings |
Special interior coatings such as nickel, chrome, Teflon®, tungsten
carbide, etc. are available for abrasive and corrosive applications. |
| Vents |
Vented housings can be furnished to evacuate pressure in pockets to aid
flow of material into airlock. |
To get fast answers to your questions
about our industrial central vacuum systems,
please call us toll free.
Let's Discuss it!
1 - 888 - 330 - 3365
Call toll free in the USA and Canada
Click here to e-mail your inquiry.
We'll respond to your request quickly!
|
DuroVac Industrial Vacuums
|
1-888-330-3365
|
Industrial Vacuums Home Page
Portable Vacuums |
Central Vacuum Systems
Equipment Specifications
Tubing and Fittings |
Hose, Tools, and Attachments
About DuroVac | Our Distributors |
Contact Us
DuroVac
Industrial Vacuums
4995 #3 Timberlea Rd,
Mississauga, ONTARIO
L4W 2S2
1- 888- 330- 3365
PHONE: 905-624-4003 FAX: 905-624-4641
DuroVacTM and PowerLiftTM are trademarks
of Northwind Air Systems
© 2003-2009 Northwind Air Systems
title: MEYERS rotary Air Lock Valves
|
|
|
