Lobe Pump

Lobe pump
type: Cosmetic Machines
tags: lobe pump, cosmetic machines, ลูปปั้ม, โลปปั้ม
attachment: Lobe Pump (PDF)

Lobe pump detail

Lobe pump standard version

Standard Lobe Pumps in AISI 316 stainless steel are assembled on a cast iron gear box which has a protective coating in epoxy paint finish. The chamber separating the rotor case and gear box enables the fitting of balanced compact reversible mechanical seals, avoiding the contamination between the pumped fluid and the gearbox lubricant. The base of the gearbox is designed to make installation easier for connecting into horizontal and vertical pipelines. The OMAC Lobe Pump is modular in design allowing the main parts such as the rotor and seals, to be changed quickly and easily.


Quality and high precision working is obtained through having compact and rigid mechanical parts including double conical roller bearings, shafts and oversized gears running in an oil bath within the gearbox. This is to obtain smaller tolerances as the rotors do not have any contact points. This ensures a good pump performance and reliability is obtained. In the Rotary Lobe pumps the rotors rotate in an opposite direction without contact with each other. Thanks to this characteristic the metal parts do not wear and contaminate the product and there is also no damage to the product. The Lobe pumps are also suitable for handling abrasive products. The transmission movement from the motor drive shaft to the driven shaft is made by double high precision gears. The timing device is simple and accessible – one gear is fixed and the other gear mounted on the bush is adjustable.



Lobe pump special version



All standard models can be produced in Aseptic versions with sterile, steam or liquid barriers on the end cover, shaft seals and suction/discharge ports. This type of pump is used in the food and pharmaceutical sterilised product packaging areas where it is important that the product is not contaminated by bacteria or micro-organisms during transfer.




The B115, B220, B330,B440 Models can be supplied with enlarged rectangular suction inlets allowing highly viscous products such as semi-solid pastes or mixtures containing semi-solid pieces to be pumped. In these cases the pump is generally positioned with the port on a vertical axis in order to allow the entry of the product under gravity directly beneath the hopper.



lobe-pump-heated-jacket-bodyIf it is necessary to keep the pumped fluid at a constant temperature a heated jacket body is available for all the pumps except the B100. This allows the circulation of heating or cooling liquid. Typical examples are melted fats, butter and margarine, chocolate and glucose.



lobe-pump-heated-jacket-front-coverThe front cover can be made suitable for heating or cooling the pump and its own or with heated jacket on the body.




lobe-pump-flushed-sealWhen the pump is transferring products that may crystallise or leave solid deposits, the mechanical seals supplied have to be cleaned by flushing water or a compatible liquid at low pressure. This flushing arrangement can also be used to dissipate heat or to avoid dry running. There is a fixed chamber around the standard seal with the UM seal for sealing the flushing liquid. Should the flushing liquid be aggressive, dangerous or a pollutant, and the pressure is higher than the working or pumped fluid, it is possible to fit a double flushed mechanical seal. In this case the second seal is necessary to avoid the flushing liquid leaking.



lobe-pump-in-special-materialsOMAC can product Lobe pumps for transferring all kinds of aggressive products. The B100 and B330 Models can be manufactured in mixed versions, i.e. shafts and rotors in Titanium, Hastelloy or Monel, with the pump/cover body in Thermoplastic Resin. For larger sizes or high working pressures there are other versions with all parts in contact with the product in Hastelloy, Titanium or Monel, a mix can also be produced, e.g. moving parts in Titanium and stationery parts in Hastelloy.



lobe-pump-with-hydraulic-motorSpecifically designed for road tanker duties, the B325 and B330 can be supplied with flanged gear cover direct coupled to hydraulic motor. These pumps can be supplied bareshaft or complete with hydraulic motor, power station and control system.

Copyright © 2013 i-change.co.th