Alfa Laval OptiLobe Series Pumps

Simplicity of installation, operation, and maintenance are hallmarks of the OptiLobe series, Alfa Laval’s basic rotary lobe pump. Universal mounting with inlet and outlet ports in vertical or horizontal position makes installation very simple. Operation is just as straightforward and reliable, thanks to the robust gearbox construction. Fully interchangeable front-loading seals provide fast access for inspection or replacement without pipe work disassembly.

OptiLobe is fully 3-A compliant and EHEDG certified. All product contact components are FDA compliant as well.

Models

  • Model 12
  • Model 13
  • Model 22
  • Model 23
  • Model 32
  • Model 33
  • Model 42
  • Model 43
  • Model 52
  • Model 53
APPLICATION

The OptiLobe range of rotary lobe pumps combines cost-effective simplicity with Alfa Laval quality and reliability. It’s been developed for general applications within the dairy, beverage, and food industries. Ideal for CIP operation, OptiLobe is fully 3-A compliant and European Hygienic Equipment Design Group (EHEDG) certified. All product contact components are Food and Drug Administration (FDA) compliant as well. OptiLobe features front loading seals which allows quick and easy inspection or seal replacement without rotor case removal. With a compact design, it’s an efficient PD pump capable of flow rates up to 211 US gallons/minute and pressures up to 115 psi.

PRODUCT QUALITY

The OptiLobe offers reliable fluid transfer and gentle product handling in combination with low pulsation, low shear, and low noise characteristics. The robust gearbox construction with heavy-duty shafts, torque locking assemblies, and taper roller bearings throughout delivers reliable operation and reduces maintenance. The pump is suitable for most general applications and is clean-in-place (CIP) capable. The low maintenance design provides a quick return on investment.The OptiLobe not only reduces initial capital investment, but also reduces total cost of ownership (TCO).

WORKING PRINCIPLE

The positive displacement of the OptiLobe pump is provided by non-contacting, counter rotating tri-lobe rotors within a fully swept pump chamber. All OptiLobe pumps are capable of reversing flow without modification, as demonstrated in the graphic below.

OptiLobeWorkingPrincipleFig

Standard Design

PUMP GEARBOX

The OptiLobe pump range has a universal gearbox design with the flexibility of mounting inlet and outlet ports in either a vertical or horizontal plane by simply changing the foot position. A stainless steel gear canister bearing housing provides a clean, paint-free, and corrosion-resistant external finish.

PUMP HEAD CONSTRUCTION

The pump head is designed with full bore inlet and outlet ports, maximizing port efficiency and net positive suction head (NPSH) characteristics. Each pump is fitted with tri-lobe rotors and rated to 266°F.

STANDARD SPECIFICATION OPTIONS
  • Specification of inlet and outlet ports (complete with Tri-Clamp® connections)
  • Available in bare shaft pump only
SHAFT SEAL OPTIONS

EasyFit type single or single flush/quench mechanical seals are available.

All seals are designed as front-loading, self-setting, and self-adjusting for fast on-site seal changeability. Specialized mechanical seal setting is not required as the seal is dimensionally set on assembly.

Materials
Gear Canister304 stainless steel
Bearing Housing304 stainless steel
ShaftsDuplex stainless steel
PumpheadProduct wetted components in 316L
Product Wetted ElastomersEPDM and FPM
All elastomers are FDA conforming
Mechanical SealsCarbon/stainless steel, carbon/silicon carbide or silicon carbide/silicon carbide
Flows/Pressures/Connections
OptiLobe Model
Displacement

(US gal / 100 rev)

Inlet and Outlet Connection Size

(in)

Differential Pressure

(psi)

Maximum Speed

(rev/min)

121.481.01151000
132.611.51151000
224.491.51151000
235.551.51151000
328.452.01151000
3310.572.01151000
4216.912.51151000
4321.663.01151000
5230.893.0115750
5345.414115750
PUMP SIZING

In order to correctly size a rotary lobe pump, some essential information is required. Provide the operating data and performance data to Central States Industrial's customer service team at 800.654.5635, so they can obtain the optimum pump selection:

Operating Data
  • Product/fluid data
  • Fluid to be pumped
  • Viscosity
  • SG/density
  • Pumping temperature (minimum, normal, and maximum)
  • Clean-in-place temperatures (minimum, normal, and maximum)
Performance Data
  • Flow rate (minimum, normal, and maximum)
  • Discharge head/pressure (closest to pump outlet)
  • Suction condition

DIMENSIONAL DATA

Horizontally Ported
Pump Model12132223323342435253
A (in)6.736.738.508.509.889.8811.5711.5714.4114.41
B (in)6.776.777.567.569.449.4410.2410.8612.7612.76
C (in)8.989.4910.8311.2611.9712.4414.5715.2018.9020.00
OptiLobeDimensionsHorizontal2
Vertically Ported
Pump Model12132223323342435253
A (in)7.137.138.508.50
10.08
10.08
11.38
11.38
14.0914.09
B (in)5.985.983.78
3.78
4.72
4.72
5.12
5.43
13.3913.39
C (in)8.989.4910.82
11.26
11.97
12.44
14.57
15.20
18.9020.00
OptiLobeDimensionsVertical2

Spare Parts

Optilobe 22/23 Spare Parts
PartPart NumberDiagram Key
Bearing Housing96306341011

Dowel

96300300932
Screw, Rotorcase Retention96300370293
Canister96306371015
Screw, Canister Retention96308632166
Washer, Canister Screw96300380406
Lip Seal, Drive End, NBR96306445077
Carrier, Lip Seal96306332017A
Rotorcase, IDF, 22 96306232019
Rotorcase, Tri-Clamp, 2296306232029
Rotorcase, SMS, 2296306232039
Rotorcase, DIN 11851, 2296306232049
Rotorcase, RJT, 2296306232059
Rotorcase, IDF, 2396306233019
Rotorcase, Tri-Clamp, 2396306233029
Rotorcase, SMS, 2396306233039
Rotorcase, DIN 11851, 2396306233049
Rotorcase, RJT, 2396306233059
Screw, Rotorcase Cover963002455410
O-Ring, Cover, FPM963004492711
O-Ring, Cover, EPDM963004492811
Cover, Rotorcase963063960112
Lip Seal, Gland End, NBR963064450216
Rotor, Trilobe Stainless Steel, 22963063020117
Rotor, Trilobe Stainless Steel, 23963063030117
O-Ring, Rotor Sealing Shaft End, FPM963002340718
O-Ring, Rotor Sealing Shaft End, EPDM963086340918
O-Ring, Rotor Sealing Nut End, FPM963001938820
O-Ring, Rotor Sealing Nut End, EPDM963086154820
O-Ring, Canister, NBR963086341021
Nut, Rotor Retention, 22963064140122
Nut, Rotor Retention, 23963064150122
Key963002391623
Shaft, Drive963063860124
Shaft, Auxiliary963063910125
Bearing, Rear963086167826
Shim, Shaft Abutment, 0.050963064252527
Shim, Shaft Abutment, 0.075963064252727
Shim, Shaft Abutment, 0.100963064253027
Nut, Bearing963005668330
Bearing, Front963086167931
Timing Gear963064010136
Torque Locking Assembly963064060138
Drain Plug963002354445
Blanking Plug963086122449
Gland Guard, 22963064210150
Gland Guard, 23963064210250
Screw, Gland Guard963086513851
Washer, Gland Guard963086498653
Washer, Gland Guard963003804053
Foot963063810154
Screw, Foot963002893658
Blanking Plug9630089950
Blanking Plug9630861225

Optilobe Rotary Lobe Pump Parts List

Optilobe 32/33 Spare Parts
PartsPart NumberDiagram Key
Bearing Housing96306342011
Dowel96300300932
Screw, Rotorcase Retention96300370293
Canister96306372015
Screw, Canister Retention96308632166
Washer, Canister Screw96300380406
Lip Seal, Drive End, NBR96300306227
Carrier, Lip Seal96306332017A
Rotorcase, IDF, 3296306234019
Rotorcase, Tri-Clamp, 3296306234029
Rotorcase, SMS, 3296306234039
Rotorcase, DIN 11851, 3296306234049
Rotorcase, RJT, 3296306234059
Rotorcase, IDF, 3396306235019
Rotorcase, Tri-Clamp, 3396306235029
Rotorcase, SMS, 3396306235039
Rotorcase, DIN 1185196306235049
Rotorcase, RJT96306235059
Screw, Rotorcase Cover963002455410
O-Ring, Cover, FPM963086582911
O-Ring, Cover, EPDM963006513311
Cover, Rotorcase963063970112
Lip Seal, Gland End, NBR963064450316
Rotor, Trilobe Stainless Steel, 32963063040117
Rotor, Trilobe Stainless Steel, 33963063050117
O-Ring, Rotor Sealing Shaft End, FPM963003815718
O-Ring, Rotor Sealing Shaft End, EPDM963086154918
O-Ring, Rotor Sealing Nut End, FPM963001938820
O-Ring, Rotor Sealing Nut End, EPDM963086154820
O-Ring, Canister, NBR963086336721
Nut, Rotor Retention, 32963064140122
Nut, Rotor Retention, 33963064150122
Key963003149923
Shaft, Drive963063870124
Shaft, Auxiliary963063920125
Bearing, Rear963086242826
Shim, Shaft Abutment, 0.050963064253527
Shim, Shaft Abutment, 0.075963064253727
Shim, Shaft Abutment, 0.100963064254027
Nut, Bearing963002913630
Bearing, Front963086242931
Timing Gear963064020136
Torque Locking Assembly963064070138
Drain Plug963002354445
Blanking Plug963086122449
Gland Guard, 32963064220150
Gland Guard, 33963064220250
Screw, Gland Guard963086513851
Washer, Gland Guard963086498653
Washer, Gland Guard963003804053
Foot963063820154
Screw, Foot963002893658
Blanking Plug9630089950
Blanking Plug9630861225

Optilobe Rotary Lobe Pump Parts List

Optilobe 42/43 Spare Parts
PartPart NumberDiagram Key
Bearing Housing96306343011
Dowel96300300932
Screw, Rotorcase Retention96300271373
Canister96306373015
Screw, Canister Retention96308632166
Washer, Canister Screw96300380406
Lip Seal, Drive End, NBR96306445097
Carrier, Lip Seal96306333017A
Rotorcase, IDF, 4296306236019
Rotorcase, Tri-Clamp, 4296306236029
Rotorcase, SMS, 4296306236039
Rotorcase, DIN 11851, 4296306236049
Rotorcase, RJT, 429630626059
Rotorcase, IDF, 4396306237019
Rotorcase, Tri-Clamp, 4396306237029
Rotorcase, SMS, 4396306237039
Rotorcase, DIN 11851, 4396306237049
Rotorcase, RJT, 4396306237059
Screw, Rotorcase Cover963002455410
O-Ring, Cover, FPM963006310911
O-Ring, Cover, EPDM963001986111
Cover, Rotorcase963063980112
Lip Seal, Gland End, NBR963064450416
Rotor, Trilobe Stainless Steel, 42963063060117
Rotor, Trilobe Stainless Steel, 43963063070117
O-Ring, Rotor Sealing Shaft End, FPM963003714018
O-Ring, Rotor Sealing Shaft End, EPDM963003713818
O-Ring, Rotor Sealing Nut End, FPM963002835720
O-Ring, Rotor Sealing Nut End, EPDM963002832120
O-Ring, Canister, NBR963005996721
Nut, Rotor Retention, 42963064160122
Nut, Rotor Retention, 43963064170122
Key963003149923
Shaft, Drive963063880124
Shaft, Auxiliary963063930125
Bearing, Rear963086208926
Shim, Shaft Abutment, 0.050963064254527
Shim, Shaft Abutment, 0.075963064254727
Shim, Shaft Abutment, 0.100963064255027
Nut Bearing963005668430
Bearing, Front963086208831
Timing Gear963064030136
Torque Locking Assembly963064080138
Drain Plug963002354445
Blanking Plug963086122649
Gland Guard, 42963064230150
Gland Guard, 43963064230250
Screw, Gland Guard963086513851
Washer, Gland Guard963086498653
Washer, Gland Guard963003804053
Foot963063830154
Screw, Foot963002463558
Blanking Plug9630089950
Blanking Plug9630861224

Optilobe Rotary Lobe Pump Parts List

Optilobe Cover/Spline Seal Kits
Pump SizeEPDMFPM
22/2396308647489630864749
32/3396308647509630864751
42/4396308647529630864753

Optilobe Rotary Lobe Pump Parts List

Optilobe Service Kits
Seal TypeElastomer22/2332/3342/43
Carbon/Stainless SteelEPDM963086475496308647609630864766
Carbon/Stainless SteelFPM963086475596308647619630864767
Carbon/Silicon CarbideEPDM963086475896308647649630864770
Carbon/Silicon CarbideFPM963086475996308647659630864771
Silicon Carbide/Silicon CarbideEPDM963086475696308647629630864768
Silicon Carbide/Silicon CarbideFPM963086475796308647639630864769

Optilobe Rotary Lobe Pump Parts List

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