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Acme > Positive Rotary Lobe Pump ALB-Series

Positive Rotary Lobe Pump ALB-Series

Lobe pump are similar to external gear pumps in operation in that fluid flows around the interior of the casing. Unlike external gear pumps, however, the lobes do not make contact. Lobe contact is prevented by external timing gears located in the gearbox. Pump shaft support bearings are located in the gearbox, and since the bearings are out of the pumped liquid, pressure is limited by bearing location and shaft deflection.

As the lobes come out of mesh, they create expanding volume on the inlet side of the pump. Liquid flows into the cavity and is trapped by the lobes as they rotate. Liquid travels around the interior of the casing in the pockets between the lobes and the casing — it does not pass between the lobes.

Finally, the meshing of the lobes forces liquid through the outlet port under pressure.

Lobe pump are frequently used in food applications because they handle solids without damaging the product. Particle size pumped can be much larger in lobe pump than in other PD types. Since the lobes do not make contact, and clearances are not as close as in other PD pumps, this design handles low viscosity liquids with diminished performance. Loading characteristics are not as good as other designs, and suction ability is low. High-viscosity liquids require reduced speeds to achieve satisfactory performance. Reductions of 25% of rated speed and lower are common with high-viscosity liquids.

SR NO. PARTS MOC
1 Pump Chamber SS-316
2 Tri-Lobe Rotor SS-316
3 Top Cover SS-316
4 Shaft SS-316
5 Shaft Seal Mech. Seal
6 Gear EN-24
7 Casing CI
8 Back cover CI
9 Bearing Speller CI
10 Bearing SKF

Application Industry

Oil Meats
Waste water Canned Foods
Sludge Beverages
Chemicals Candy
Asphalt Drugs
Excretions Syrup
Paints Cream
Polymers Dressing
Dairy Cosmetics
Bakery Flavoring

Typical Characteristics

Front Loading Seals
Smooth Flow
Gentle Product Handling
Dry Running Ability
Efficient Transport and Dosing
Handles Low & High Viscosity Products
Outstanding Operation & Efficiency
Simple Maintenance
Hygienic Design
Low Sound Level
Capacity Chart

 

PUMP MODEL PORT SIZESTANDARD DISPLACEMENT@100rpm MAX. SPEED (RPM) PRESSURE(Kgf/cm2) WEIGHT(Kg)
LPM US. GPM HORIZONTAL PORTING VERTICAL PORTING
ALB-100S 1” 5 1.4 1000 7 15 16
ALB-100L 1” 8 2.25 1000 7 17 18
ALB-150S 1 ½” 12 3.38 1000 7 28 30
ALB-150L 1 ½” 18 4.78 1000 7 30 31
ALB-200S 2” 26 7.03 1000 7 52 55
ALB-200L 2” 38 10.15 1000 7 55 58
ALB-250S 2 ½” 55 14.64 1000 7 104 110
ALB-250L 2 ½” 79 20.87 1000 7 109 115
ALB-300S 3” 116 30.65 600 7 150 150
ALB-300L 3” 175 44.39 600 7 158 158
ALB-400S 4” 261 68.70 500 7 258 258
ALB-400L 4” 354 93.26 500 7 264 264

General Arrangement Drawing

 

MODEL A B C D E F G H J K L M N P R S T U
ALB-100 S/L 1″ 140 90 175 11 16 37 113 30 5 270/278 43/49 124 70 140 100 80 12
ALB-150 S/L 1 ½” 180 115 220 12 22 45 145 35 6 327/338 50/70 138 100 152 125 100 12
ALB-200 S/L 2″ 216 137 270 18 28 58 175 45 8 445/467 83/88 176 125 180 154 125 14
ALB-250 S/L 2 1/2″ 280 163 315 18 38 75 211 63 10 455/473 93/103 163 150 200 184 150 14
ALB-300 S/L 3″ 315 214 405 30 45 110 274 75 14 510/530 88/108 145 210 250 240 210 14
ALB-400 S/L 4″ 370 230 435 30 48 110 300 75 14 600/620 100/123 172 230 272 240 200 16