Rotary valve, air lock

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Rotary Valve AL
 

Rotary Valve AL

 

Rotary Airlock

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Rotary Valve BL
 

Rotary Valve BL

 

Blowing seal

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Rotary Valve ALD
 

Rotary Valve AL Dairy

 

Hygienic Dairy valve / USDA approved

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BL Dairy

 

Hygienic Dairy valves / USDA approved

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AL Dairy MZC

 

Dairy valves with slide bars

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BL Dairy MZC

 

Dairy valves with slide bars

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SAL

 

Small sanitary valves

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MLD/MALD/MGLD

 

Medium duty / Easy clean

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GL

 

Granular valves

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AML

 

Extra large inlet

 
   
 

OS/GOS

 

High capacity valves

 
   
 

DL

 

Cyclone or filter valves

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General Material Flow Rate Capacities

Capacities in Cubic Feet Per Minute
(based on 6 vane open end rotor and 100% fill factor) Check with manufacturer for actual
flow rate capacities.

Size

6
cf/rev

8
cf/rev

10
rpm

10
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.


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