Rotary lobe pump with rubber coated rotors

Rotary lobe pump with rubber coated rotors

BONVE Rotary Lobe Pumps are self-priming, valve less, positive displacement pumps. With speed-proportional flow, they continuously deliver trouble-free pumping of liquids of various consistencies and multiphase mixtures. They are compact and operate with low shear and low pulsation. Pumps are used for many different applications. They are preferred for sludge and suspensions or where abrasive or shear-sensitive products must be handled.

Working principle 

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The parallel, 2-shaft design is common to all Rotary Lobe Pumps. The external synchronizing gear rotates the shafts in opposite directions.

The displacement rotors are fitted on the shafts within the pump casing. The clearances between the rotors and casing are minimized to completely isolate the suction and pressure areas of the pump.

The rotation of the rotors creates a series of chambers within the pump casing. Product fills the chambers on the suction side and is rotated circumferentially to the pressure side. This produces a uniform flow from the suction to the discharge side with no need of valves. The stress to the fluid is negligible as the product is transported almost free of shear and with little pulsation and acceleration.

Structure features 

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Bonve rotary lobe pumps are fabcitated with high precision and simple strucutre, which resulted in a low maintenance pump and long service life for our customers.

Rotor tyeps 

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Different forms of rotor design meets the diverse needs of users, and the materials of the rotor are also diverse, such as NBR rubber, EPDM rubber, FPM rubber, FFKM rubber, PU, Stainless steel, copper, PTFE, etc. 

Seal types 

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There are various sealing options such as single mechanical sealing, container -type mechanical seal, multiple skeleton seals and gland packing seals. Bonve offer the targeted seal type and material according to the specific duty to make sure no failure on sealing. 

Connections types 

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To meet various site installation, Bonve pumps have many connection type for your choose.

Productline

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Technical parameters at glance 

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• Capacity up to 1800 m3/h
• Head up to 120 m
• Solids handling up to 95 mm
• Viscousity up to 100000 cp
• Wide selection of models (including mobile and ATEX), sizes and materials
• Avaiable 3 type mechanical seals types
• Casing in block design
• Pump shaft does not become in contact with the pumped liquid
• Wide selection of rotors, which can be adapted to specific parameters (including versions with replaceable lobe tipes and special version for biogas industry)
• Self-priming, no vaccuum system necessary
• Pump can be used in both horizontal and vertical position
• Easy pump maintenance, no line disassembling necessary
• Replaceable wear plates in casing upper and bottom part (option), as well as in front and rear part (standard)
• Quench chamber between pump casing and gear box
• Adjustable flow 1:6
• Can pump chemically aggressive and viscous liquids
• Can be reversed
• Capable of running without causing damage
• Can be driven by electric, diesel, hydraulic, pneumatic egine and PTO
• Compact size

Technical data sheet 

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*Technical parameters in this table for only for model selection. Pls contact cathy@bonvepumps.com to ask for technical quotation for your specific duty.

Main applications 

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• Oil and gas industry: pumping of petroleum, fuels, petrochemical products, oil, crude oil, oil and water mixtures and ethanol
• Waste disposal and recycling industry: pumping of suspensions, solvents, paints, plastic pieces, food waste, disposed oils, flammable chemicals
• Chemical industry: pumping of latex, slime, pesticides, glue, resins, adhesives
• Paper and pulp industry: pumping of glue, paper sludge, starch, paints, bulking agents, lime milk
• Sugar industry: pumping of lime milk, thin juices, syrups, sugar solutions, molasses
• Wastewater treatment industry: pumping of sludge, sewage pipelines flushing
• Marine and offshore industry: pumping of ballast water, bilge water, sea water with crude oil or feaces, wastewater sludge
• Food industry: pumping of vinasse and molasses, fruit masses, aninal blood, slaughterhouse waste, fish remains, glucose syrup
• Flood protection and disaster relief industry: decontamination, mobile flood protection forces, disaster relief forces, coastal protection forces
• Agriculture and biogas industry: biogas plants, mobile tank filling stations, silages and liqud manure pumping.
• Other industries: construction (including borehole drilling), transportation, textile and other sectors

Projects 

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Oil products and chemical unloading pumps are typical applications in petrochemical technology. Bonve provides its rotary lobe pumps for oil products transportation. Pump meets the API676 and the sealing system meets the API682.

Bonve Lobe Pumps for oil tanks discharge gasoline, diesel, aviation coal, crude oil, fuel oil, etc. Generally, the deposition at the bottom of the tank is cleaned up once a long time. Bonve mobile rotary lobe pump is an ideal choice. It is easy to move, it can clean up multiple storage tanks.

Bonve rotary lobe pumps can effectively transport sludge with a solid content of 3-6% for a long time. Our customer who is from Sewage treatment plant, has the construction scale of the water quality reformation project of 300,000 m3/d. The water plant sludge is collected through the sludge pool, and the mechanical concentration and dehydration are used to concentrate and transport.

BONVE  is a Chinese leading manufacturer in ROTARY LOBE PUMPS. Providing its customers with customized pump solutions and solving their problems during the production.

Bonve pumps are widely used in food, dairy, beverages, chemical, pulp&paper, soaps & detergents, pharmaceuticals, pesticide, coatings etc. By 2021, Bonve served 5000+ customers in various industries and 60000+ pumps running in the worldwide.

Time and again companies specify Bonve Pumps as the "standard" equipment for their manufacturing processes. We are looking forward to be partner with you.

For a full stainless steel lobe pump request, pls click the below photo to learn more.