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 22
  • Model 23
  • Model 32
  • Model 33
  • Model 42
  • Model 43
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. 

TECHNICAL DATA
Pump Model 222332334243
Bare Shaft Pump Weight45 lb47 lb74 lb76 lb132 lb139 lb
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. 


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)

224.491.51151000
235.551.51151000
328.452.01151000
3310.572.01151000
4216.912.51151000
4321.663.01151000
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 Model222332334243
A (in)8.508.509.889.8811.5711.57
B (in)7.567.569.449.4410.2410.86
C (in)10.8311.2611.9712.4414.5715.20

Vertically Ported
Pump Model222332334243
A (in)8.508.50
10.08
10.08
11.38
11.38
B (in)3.78
3.78
4.72
4.72
5.12
5.43
C (in)10.82
11.26
11.97
12.44
14.57
15.20

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