Alfa Laval OptiLobe Rotary lobe pumps

Introduction

The Alfa Laval OptiLobe Rotary Lobe Pump is a cost-effective

alternative for general applications that require gentle product

treatment and easy serviceability. Versatile, dependable and

energy efficient, this hygienic positive displacement pump

enhances both process flexibility and operational reliability.

The pump is designed according to the most stringent hygienic

design standards and with verified, effective Cleaning-in-Place.

Applications

The OptiLobe Rotary Lobe Pump is designed for gentle product

treatment in general applications across the dairy, food, beverage,

home and personal care industries.

The OptiLobe pump is available with 10 different pump head

displacements based on five different gearbox modules to handle

flow rates up to 77 m³/h and differential pressures up to 8 bar.

Benefits

• Cost-effective, hygienic pump.

• Optimal product quality due to gentle, low-shear operation.

• Robust design for long service life.

• Easy maintenance due to self-setting, front-loading seals.

• Low total cost of ownership.

Standard design

All media contacting steel components, like the rotor case, front

cover, rotors and rotor nuts, are in W. 1.4404 (AISI 316L). With

stainless steel bearing housing, canister and feet, the OptiLobe

pump has an all stainless steel exterior, making it corrosion

resistant.

The pump features the Alfa Laval EasyFit front-loading seal,

which allows quick and easy inspection or replacement without

the need to disassemble pipework. Single and single-flushed

shaft seals are available as options.

Single, single-flushed and the new Knife-edge shaft seals are

available as options as standard.

The Alfa Laval OptiLobe can be supplied either as a bare shaft

pump or mounted on a base plate complete with coupling, guard,

gear motor and shroud for easy, plug-and-play installation.

Working principle

A gear train in the pump gearbox drives the rotors and provides

accurate synchronization of the tri-lobe rotors. The movement of

the counter-rotating rotors creates a partial vacuum that allows

atmospheric pressure or other external pressures to force fluid into

the pump chamber. As the rotors revolve, an expanding cavity

forms, filling with fluid. As the blades disengage, each dwell forms

a cavity. As the rotor blades engage, the cavity diminishes and

fluid is displaced into the outlet port.