What is a Rotary Lobe Pump and How We Use It

A K.I rotary lobe gear pump is a positive displacement pump used to transfer fluid quickly and smoothly through a system. The pump works with a group of 6 lobed rotors rotating in opposition inside a pump casing. The lobed rotors trap the fluid between the lobes and tank casing, transferring the fluid from inlet to outlet without damaging the product and without turbulence.

The design of a K.I rotary lobe pump allows for the movement of many different fluids (from thin liquids to thick viscous fluids upto 60000 CST). Because the lobes touch and rotate with very close clearances, a rotary lobe pump is able to handle fluids gently, making it a good choice for all and any industries as K.I have a unique option of Cast iron MOC.

How We Use Rotary Lobe Pumps

Rotary lobe pump are used abundantly in a myriad of industries due to versatility and proven dependability.

Food and Beverage Industry: Rotary lobe pumps transfer food products (dairy, fruit purees, sauces, and viscous food products) without damaging the product texture and quality. The hygienic design of rotary lobe pumps allows for easy washdown and sterilization, meeting safe food handling standards.

Pharmaceuticals and Cosmetics: Used to transfer creams, gels, lotions and ointments perform. Where integrity and sterility must be maintained. 

Chemical Processing: Transfers aggressive chemicals, thick slurries and viscous liquids. Material of construction can be modified to withstand corrosion and abrasion.  

Wastewater and Sludge Management: Handle slurry, and sludge with solids, without clogging or damage to the pump due to heavy-duty design.  

General Manufacturing: Many industries processes need the smooth, non-pulsating flow rotary lobe pump provides, especially in dosing and critical fluid transfer. 

Advantages  of a Rotary Lobe Pump 

Gentle Fluid Handling: design minimizes shear forces on the fluid. Great for delicate flow products where shear must be avoided. Food ingredients, cosmetics and pharmaceuticals. 

Flexibility with Fluid: Handles viscous liquid, includes fluids with suspended solids. Suitable for many applications. 

Sanitary Design and Easy Maintenance: sanitary design allows for effective cleaning, disassembly is quick and easy for maintenance. Essential in environments where hygiene is critical. 

Self-Priming Features: A majority of rotary lobe pump can run without being primed, simplifying starting and operating the pump.

Reversible Action: The lobes can also run in a clockwise or anti-clockwise direction, allowing flexibility in operation and pumping fluid.

Constant, Low Pulsation Flow Rates: These features provide consistent and constant flow with low pulsations, allowing rotary lobe pumps to be ideal for processes with strict fluid movement requirements. 

Disadvantages of Rotary Lobe Pumps

Pressure Limitations: Rotary lobe pump can generally only handle moderate pressures and are not ideal for extremely high pressure and risks running dry without requiring higher pressure-lift designs, like a diaphragm pump.

Wear and Tear:  Pumping abrasive fluids and/or solids will create wear and tear faster, so regular inspections and maintenance will better mitigate wear when handling such fluids.

Cost: While more efficient compared to other pumps like diaphragm pumps, a rotary lobe pump will typically budget higher than more simple designs like centrifugal pumps.

Efficiency Loss at High Speed: While rotary lobe pump work wonderfully at moderate rotational speeds, efficiencies are lost as speeds increase resulting in waste of energy and increased wear.

Bulkier Size: Compared to other pumps, rotary lobe pumps are usually larger and heavier, especially for smaller installations with space constraints.

Conclusion 

K.I Rotary lobe gear pump maintain an excellent balance between reliability, gentle handling of fluid, and versatility. The capabilities of rotary lobe pumps allow them to be effective with a wide range of viscosities and able to conform with hygienic standards as needed. Rotory pumps have an important role in many industries, whether it is allowing food products to be transported through a pipe in a controlled but deliberate manner or moving abrasive chemical slurries from one tank to another where performance and consistency matters.

If reliability is important to your operation, Cast iron rotary lobe pumps from Kirit Industries provide a solution. Each product produced from Kirit Industries is built with advanced technology and durable materials, providing you with many options for rotary lobe pumps. Each pump produced provides performance, reliability, and assurance in the future of your operation.