What Is Lobe Pump?
They are devices that provide transfer between substances with liquid liquids that are solid parts and high viscosity. Thanks to its positive displacement feature, another name for these products, which are used in the transfer of low, medium and high viscosity fluids without any problems, is lobe pumps. The pumps, which are used for the transfer of fluids, viscous or particles containing particles and needed in many areas of the industry, are divided into many different models. There are different pump designs according to the purpose of use, the liquid properties to be transferred and the usage environment. Kenfle lobe pumps are used in many specific applications such as food, beverage, pharmaceutical, biotechnology, paper industry and so on. Lobe pumps, which are the most ideal pump model for high viscosity fluids, give successful results when used in the appropriate liquid and correct temperature range. It is possible to obtain very hygienic solutions in food applications.
What Is The Working Principle of Lobe Pump?
Lobe pumps it shows similar characteristics with gear pumps. However, there are great differences in terms of structural features and the type of liquid used together. Inside the pump, there are rotors, which are generally similar to the gear, and two or three protrusions, which are called lobes. In some applications, the use of rotors with a butterfly design is also seen. If we look at the working principle of the lobe pump;
We move the lobes by starting the pump, and a volume that expands between the lobes and the pump body is formed. Thus, the liquid to be pumped fills this gap.
As a result of the movement of the lobes, the liquid moves from the pump inlet to its exit without passing through the lobes. In the meantime, the correct positioning of the lobes and the correct time movement of the lobes are prevented from contacting each other.
The liquid to be pumped is directed to the pump outlet and separated from the pump with lobe movements.
What Are The Lobe Pump Models?
Lobe pumps can be produced in the following ways, depending on the type of use:
– Triple Lobe (Standard)
– Dual lobe
– Butterfly (bat) winged lobe
– One-winged lobe
– Teeded lobe
Determining which type of lobe is better for an application requires analyzing the solid size, liquid viscosity and tolerance of flow vibration. For example While a single-winged lobe or butterfly winged lobe is suitable for the transfer of a strawberry granular jam, triple lobes are preferred for the transfer of products with heavy viscosity such as honey, wax and glucose.
What Are The Technical Specifications of Lobe Pumps?
When choosing a Kenfle lobe pumps, AISI 316L stainless steel, titanium and Hatelloy material alternatives
Kenfle lobe pumps offers a variety of options for semi-hygienic, hygienic, super hygienic and ultra-supper hygienic series.
1” – 8” Input-output connections are Lobe pump connection types.
Seamless operation with fluids at -40°C – +200°C
Transfer of medium and high viscosity fluids (max. 1,000.00 MPas
Easy transport of adhesive, abrasive or surface sensitive fluids is the most important feature of the lobe pump.
Mechanical seal, washed mechanical seal, double mechanical seal, single and double seal sealing
Heat jacket, by-pass valve, aseptic, rectangular suction etc. Options can be selected according to the process in lobe pumps.
What Are The Materials Used In Lobe Pumps?
All shafts are made of AISI 304L or AISI 316L stainless steel. The lobes are made of high quality AISI 304L or AISI 316L extruded bar or special stainless steel non-shrinking alloy. The body of the pump is also made of AISI 304L or AISI 316L stainless steel.
What Are The Advantages of Kenfle Lobe Pumps?
Smooth flow
Possibility of precise and careful transfer of liquid sensitive fluids, the product is not damaged
Dry working capability with double seal
Washing shafts
Ability to transfer both low and high viscosity fluids
Easy repair and maintenance
Hygienic design
low noise
CIP Qualification Standard, the possibility of lure drainage for vertically designed pumps
Unique rotor assembly plan
Robust and reliable design
Versatile use
Bed lubrication is carried out using grease
Reliable lubrication at high speeds and temperatures
No built-in rotor contact
Fluids containing relatively coarse solids can be pumped through large liquid chambers.
The product transferred thanks to the unique gear box design does not mix with the lubricating oil and get dirty.
Energy efficiency
What Are The Usage Areas of Lobe Pumps?
In the food industry (chocolate, sugar syrup, cream, molasses…)
In the chemical industry (medicine, detergent, soap, cosmetic creams…)
In the paint industry
In the paper industry
Gels, grease…
What Are The Additional Options in Kenfle Lobe pumps?
Heating Jacket
Heat jacketed lobe pumps are suitable for easy-to-harden products. A thermal jacket is used to maintain the desired heat. With the heat of the thermal jacket, the product is kept at the targeted temperature and its fluidity is increased.
Cartridge Application
When the pump transfers products that can crystallize or release solid deposits,
The supplied mechanical seals should be cleaned with flushing water or a compatible liquid under low pressure. This mechanism can also be used to dissipate heat or prevent dry running.
There is a fixed room around the mechanical seal to ensure the sealing of the cartridge.
If the washing liquid is aggressive, dangerous or polluting, and the pressure is higher than the working or pumped fluid, it is possible to install a double cartridge mechanical seal.
Inverter
The speed of the lobe pump can be adjusted via the inverter connected to the electric motor. Thus, the desired amount of product is transferred in the desired time and in the desired amount. In addition, in high-speed works, soft start is achieved by slowly transitioning from low rpm to high rpm with the inverter, and this ensures that the pump has a much longer life.