External Lobe pump

External Lobe Pump

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External Lobe Pumps or “EL” Series Pumps are available for Hygienic Version and Industrial Version. The major difference in both the version is that the Hygienic Version are made for application in Food and Pharma Industries, where as Industrial pumps are provided for the application in oil transferring and other industrial products.

Product Reviews

Series Features:

Capacity Range: upto 600 LPM
Viscosity Range: upto 100000 cSt
Temperature Range: upto 200˚C
Pressure Range: upto 10 BAR

Operational Features:

Both the rotors are placed on individual well supported shafts.
These rotors are rotated by timing gears fitted in an in-built gearbox.
There is no contact between lobes due to timing gears.
These rotors perform liquid tight fit operation with less noise and nearly vibration free flow.
The liquid never passes through the gap between two lobes and it travels in the space between casing and lobes.
The operation and delivery of pumping fluid is smooth with no churning effect.

Installation Features:

These pumps can either be horizontal or vertical foot mounted as per requirement.
Can be provided with geared motor or with built – in speed reducer.
The sealing options provided in this series are either mechanical seal or lip seal, as per the application and requirement.
The standard direction of rotation is anti-clockwise from the pump shaft end with left IN and right OUT configuration.
The number of lobes per rotor varies from 2 to 6.
More the number of lobes, higher the chances of less pulsating discharge.
Bi-wing lobes offer wide sealing area and carry much volume compared to round tip.

Product Advantages:

Easy maintenance.
Minimum internal losses and excellent self - suction capabilities.
Low power consumption and high volumetric efficiency.
Robust Construction.
Great CIP / SIP and anti-corrosive properties.
Less numbers of moving parts.

Industry:

Chemical
Food & Beverages
Pharmaceuticals
Confectionary
Dairy
Cosmetics
Sewage Industry.

Industry Sector:

Food and dairy.
Medical Sector
Chemical Sector
Waste Management

Product Application:

Loading of oils and food products.
Transferring food products such as cherries.
Applicable for dyes and alcohols.
Sewage applications.

Safety Measures:

Following points should be kept in mind as a safety measures while installing and running the pump:

Read the instruction manual thoroughly.
Do not run pump dry.
All the guards and shields should be at their proper places before running.
Make sure that the pump runs in assigned direction only.
Check all the lubricants before installing.
Pump casing should be filled with liquid.
Do not use liquid other than that for which the pump is designed.
Use proper strainers and filters to protect pump from abrasives.
Pump and motor shaft alignment should be proper.

Performance Table:

Pump Model	Port Size	Max Flow	Max Pressure	Speed	Power
	Inlet X Outlet (BSP)	LPM	Bar	RPM	HP
EL-10	1” X 1”	100	4	700	2
EL-11	1 1/2"X 1 1/2"	170	6	440-700	3
EL-12	2” X 2”	200	8	400-700	5
EL-13	3” X 3”	600	10	300-510	7.5

Material of Construction Table:

Components	Material Of Construction
Pump Casing and Covers	316 Stainless Steel
Rotor Set	316 Stainless Steel
Shaft	316 Stainless Steel
Bearings	Sintered Iron / Sintered Bronze

As the double-start screws meshes, a continuous axially moving voids/pockets generate, which traps the liquid inside it, and hence transfers the fluid, where it required.

These pumps permits an even axial flow without pulsation and silent pumping operation even at a high speed. Axial loads on the rotor are often compensated by an adequate design of the bearing and all the radial forces are self-compensated.

Further, size of a rotor kept small in the design, which enables these pumps to run at a higher speed with direct coupling to the prime mover. Self-compensated radial forces eliminate need of bearing High pressure capacity up to 40 Bar Self-Priming and reversible cartridge design simplifies maintenance problem and saves lead time.