Bonve rotary lobe pumps are widely used in industries for their efficiency and reliability in handling viscous fluids.

However, like any mechanical equipment, they may encounter operational issues over time.

This blog outlines common problems, their root causes, and practical solutions to keep your pump running smoothly.

1.  Pump Fails to Start or Rotate
Possible Causes:
1). Power supply issues: Tripped circuit breakers, blown fuses, or disconnected wiring.
2). Motor failure: Burnt motor windings or damaged bearings.
3). Mechanical jams: Rotor blockage due to debris or solidified media.

Solutions:
1). Check electrical connections, reset breakers, and replace fuses.
2). Test the motor for faults and replace damaged components.
3). Clean the rotor chamber and ensure no foreign particles are obstructing movement.

2.  Low Flow Rate or Pressure
Possible Causes:

1). Incorrect rotation direction: Motor wiring reversed, causing reverse flow.

2). Clogged pipelines or valves: Blockages in inlet/outlet pipes or partially closed valves.

3). Worn rotors or chambers: Erosion from abrasive media reduces pumping efficiency.

4). High fluid viscosity: Exceeds the pump’s design capacity, slowing flow.

Solutions:
1). Verify motor rotation aligns with directional markings and adjust wiring if needed.

2). Clean filters, open valves fully, and clear pipeline obstructions.

3). Replace worn rotors or liners and select a pump suited for higher viscosities.

3.  Excessive Noise or Vibration
Possible Causes:
1). Bearing wear: Lack of lubrication or contamination causes friction.
2). Misaligned couplings: Poor alignment between the pump and motor shafts.
3). Cavitation: Air ingress or low inlet pressure creates bubbles in the fluid.

Solutions:
1). Lubricate or replace bearings regularly.
2). Re-align couplings and ensure the pump-motor assembly is level.
3). Check for air leaks in suction lines and prime the pump properly.

4.  Leakage at Seals or Joints
Possible Causes:
1). Worn mechanical seals: Aging or abrasive media damages seal surfaces.
2). Loose fittings: Improperly tightened bolts or degraded O-rings.

Solutions:
1). Replace mechanical seals or O-rings and ensure correct installation.
2). Tighten connections and inspect pipelines for cracks.

5.  Overheating or High Motor Load
Possible Causes:
1). Excessive discharge pressure: Overloading due to system resistance.
2). High fluid temperature: Inadequate cooling or ambient heat.
3). Internal friction: Rotor scraping against the chamber.

Solutions:
1). Reduce backpressure by enlarging discharge pipes or removing restrictions.
2). Install cooling systems or switch to heat-resistant materials.
3). Adjust rotor clearance or replace damaged components.

Preventive Maintenance Tips
To minimize failures, adopt these practices:
Regular inspections: Check seals, bearings, and alignment monthly.
Lubrication: Use high-quality grease for bearings and gears.

Proper shutdown: Drain and clean the pump after use to prevent media hardening.
Correct installation: Ensure inlet/outlet orientations match design specifications.

Conclusion

Understanding these common issues and their fixes can significantly extend the lifespan of your cam rotor pump.

Always prioritize preventive maintenance and consult professional technicians for complex repairs.

For specialized support, partner with trusted manufacturers to ensure optimal performance.

For more detailed guides, explore our technical resources or contact our team!

Ningbo Bonve Pumps Co., Ltd. (hereinafter referred to as "Bonve Pumps") is on a mission to revolutionize its manufacturing process by integrating cutting-edge technologies such as the Internet of Things (IoT), big data, and artificial intelligence (AI).

On November 26, 2024, Bonve Pumps joined forces with Jing Shi Industrial to officially launch the planning project for their new smart factory.     

Attending the project's kickoff meeting were Mr. Tan, General Manager of Bonve Pumps, Manager Sun, and project team members, along with Mr. Zhang from Jing Shi Industrial.

The Era of Intelligent Manufacturing:

In today's globalized world, smart manufacturing is emerging as the new engine of industrial development, driving profound changes in the manufacturing sector.     

National strategies such as Germany's "Industry 4.0," China's "Made in China 2025," and the United States' "Advanced Manufacturing Partnerships" all highlight the imperative of intelligent manufacturing in future competitiveness.     

We are set to harness this wave of progress and sail forward.     

This project aligns with China's "Made in China 2025" strategic plan and is a crucial driver for the high-quality development of Bonve Pumps in the general equipment industry.

A Monumental Endeavor:

We are well aware of the immense responsibility and honor that comes with such a technologically, innovatively, and strategically significant project.     

It is not just about upgrading production lines;it is a symbol of our collective wisdom and hard work.     

Here, every process will be optimized through advanced technologies, and each product will embody our commitment to quality and our responsibility to our customers.

General Manager's Perspective:

Reflecting on the past, General Manager Mr. Tan Liang said, "We have achieved remarkable results with innovation as our wings and quality as our foundation.     

However, we understand that only through continuous innovation can we maintain our vitality.     

Therefore, we have decided to invest in the construction of a modern factory that is efficient, environmentally friendly, and intelligent, enhancing our core competitiveness and making a graceful transition from traditional manufacturing to smart manufacturing.     

This future smart factory will be more than a simple production line upgrade; it will be a testament to our dedication and hard work."

Technical Manager's Vision:

Imagine a fully operational new factory where robotic arms assemble parts with precision on the production line, intelligent logistics systems silently move between workstations, and our engineers monitor the entire production process in real-time through large screens, making adjustments and optimizations as needed.     

This will not only greatly improve production efficiency but also create a safer and more comfortable working environment for our employees.     

Of course, the realization of all this can't do without the joint efforts of every colleague present.     

We need the creative sparks of our designers, the superb skills of our engineers, the efficient coordination of our management, and the enthusiastic participation of all our employees.     

This is a team project and a major test of team spirit.

A New Beginning:

The success of this project is not the end but a new beginning.    

It will bring us more opportunities and challenges and will undoubtedly become a milestone in our corporate development history.     

Let us take this project launch as an opportunity to stay true to our original aspirations, forge ahead, and strive tirelessly to realize our dreams and ambitions!

Efficient Pumping Solutions in the Food Industry: Innovative Applications of Bonve Pumps

In the food industry, pumping technology is an indispensable part of the production process, which not only relates to the quality and consistency of the products but also directly affects production efficiency and costs.

Today, we will explore three innovative cases of Bonve pumps in the food sector, which demonstrate how carefully designed pumping solutions can meet specific needs.

Case 1: The Gentle Choice for Chocolate Factories

Chocolate is a product that is very sensitive to temperature and can easily coagulate at low temperatures.
To ensure the fluidity of chocolate during the transfer process and prevent coagulation, Bonve offers a jacketed rotary lobe pump.
This pump design allows for the circulation of heating media (such as steam or hot water) in the pump's jacket, thereby maintaining the temperature of the chocolate and ensuring its fluidity during the transfer process.

Features:
- Gentle Handling: Particularly suitable for handling shear-sensitive and delicate products.
- Efficient Starting: The heating system ensures smooth starting even in low-temperature environments.
- Hygienic Design: Meets hygiene standards, suitable for use in the food industry.

Case 2: Versatile Pumps for the Seasoning Industry

The seasoning industry requires a pump that can handle various viscosities and ingredients.

Bonve's food-grade lobe pumps, with their high hygiene standards and smooth internal surfaces, are the ideal choice for transferring seasonings.

Whether it's ketchup, barbecue sauce, or peanut butter, Bonve pumps can handle it with ease.

Features:
- High Hygiene Standards: Manufactured from stainless steel 316 or 316L, with a surface roughness below 0.8μm.

- Easy to Clean: Meets CIP (Cleaning) and SIP (Sterilization) requirements, easy to disassemble and maintain.

- Low Wear: Low-speed operation reduces damage to the pumped products.

Case 3: Efficient Pumping in Meat Processing

In meat processing, there is a need for a pump that can handle highly viscous products such as semi-solid pastes or mixtures containing semi-solid pieces.
Bonve rotary lobe pump, with its enlarged rectangular inlet design, can efficiently handle these products.
The working principle of this pump and its powerful drive system ensure that the pump can output a strong driving torque at low speed, guaranteeing continuous, non-stagnant transfer.

Features:
- Gentle Handling: Gentle handling of viscous products such as meat slurry, which helps to maintain the product's texture and quality.
- High Efficiency: Provides a continuous flow of the product with minimal disruption.
- Easy Maintenance: Designed with minimal moving parts, making them easy to maintain and operate.
- Hygienic: Made of stainless steel, which is easy to clean and sanitize.

Through these cases, we can see the diverse applications of Bonve pumps in the food industry.

They not only improve production efficiency but also ensure the quality and consistency of the products.

Whether it's chocolate, seasonings, or meat processing, Bonve pumps are indispensable partners in the food industry.

In industries like chemicals, food, and cosmetics, moving liquids smoothly and safely is crucial—especially when those liquids are thick, abrasive, or even hazardous. At Bonve, we specialize in designing rotary lobe pumps that tackle these challenges head-on, ensuring your operations run efficiently without compromise. Let’s explore how our pumps solve real-world problems, even if you’re new to the world of industrial pumping!

Why Bonve Rotary Lobe Pumps Stand Out

Imagine a pump that works like a gentle hand, moving sticky honey, delicate creams, or even brittle chemicals without damaging them. That's exactly what Bonve pumps do. Here's what makes them unique:
No Leaks, No Worries: Our pumps use advanced seals (like double-layered, water-cooled designs) to keep toxic or sensitive fluids securely contained. Think of it as a “safety vault” for your liquids.
Handles Thick or Thin Fluids with Ease: Whether it’s toothpaste-like sludge or watery solutions, our pumps adjust effortlessly. They even manage liquids that thicken over time, like drying paint or hardening glue.
Built to Last: Made from tough stainless steel, these pumps resist rust and corrosion, even when pumping harsh chemicals.

Easy to Maintain

Fewer parts mean less downtime. Open the pump, clean it quickly, and get back to work.

Real Success Story: Solving a Hydrogen Energy Challenge

A Canadian company developing hydrogen energy faced a major roadblock: pumping oxidized mercury, a toxic and sticky fluid that thickened as it moved through filters.

Their old pumps couldn’t keep up—flow rates dropped, parts wore out fast, and leaks posed safety risks.

Bonve’s Solution
We provided a stainless steel rotary lobe pump tailored to their needs:
Adapted to Changing Thickness: The pump smoothly handled mercury’s viscosity, from as thin as olive oil (500 cp) to thicker than molasses (4,000 cp).
No Clogs, No Jams: Custom rotors (shaped like wings or lobes) pushed through solids without getting stuck.
Zero Leaks, Full Safety: Double-sealed design ensured no toxic mercury escaped, protecting workers and the environment.
Certified Reliability: CE and ISO9001 certifications gave them peace of mind.
Result: The company’s production line ran smoothly, meeting deadlines and safety standards.

Where Bonve Pumps Shine
Our pumps aren’t just for chemicals—they’re versatile problem-solvers:
Food & Beverage: Gentle enough for chocolate, yogurt, or honey. No damage to flavors or textures!
Cosmetics: Perfect for creamy lotions, shampoos, or toothpaste. Keeps products smooth and bubble-free.
Cleaning Products: Handles thick detergents, soaps, and even abrasive slurries without wearing out.

Why Customers Trust Bonve
21+ Years of Expertise: Over 50,000 pumps in action worldwide.
Custom Solutions: Need a pump that handles gritty slurries or ultra-thick fluids? We’ll tweak the design to fit.
Fast Support: Standard pumps ship in 7 days. Got a unique challenge? Our engineers are ready to help.

Join Thousands of Satisfied Users
From detergent giants in Greece to cosmetic leaders in Australia, Bonve pumps power industries globally. Whether you’re making hydrogen fuel, crafting skincare products, or bottling sauces, we’ve got a pump that works as hard as you do.
Discover the Bonve difference today—where innovation meets simplicity.
Bonve: Engineered for Efficiency, Designed for Safety.

The Perfect Balance for Quality Chocolate Production

In chocolate manufacturing, the transfer of chocolate mass must be gentle to maintain its quality.  Bonve understands this need and offers jacketed lobe pumps designed specifically for chocolate transfers, ensuring the product's flavor and texture remain intact.

Body:
Bonve jacketed lobe pumps are designed for various chocolate manufacturing processes, including the transfer of chocolate mass, filling, and molding.  Our pumps are built with a jacket on the chamber, where heating medium circulates to keep the chocolate liquid at the ideal temperature, preventing coagulation and ensuring smooth transfers.

Our pumps are not only gentle on the product but also efficient and hygienic.  They are easy to clean and maintain, making them suitable for hygienic applications in the food industry.

Conclusion:
For chocolate manufacturing that demands the highest quality, choose Bonve jacketed lobe pumps.  Experience the balance of gentle handling and powerful performance.

The Powerhouse of Industry: Bonve Rotary Lobe Pumps

In the heart of industrial processes, where precision and reliability are paramount, lies the workhorse of fluid management: the Bonve Rotary Lobe Pump.  Designed and manufactured by Ningbo Bonve Pumps Co., Ltd., these pumps are the epitome of engineering excellence, serving a diverse range of industries with their unmatched performance and durability.

A Closer Look at Bonve's Engineering Marvel

Bonve Rotary Lobe Pumps are not just machines;  they are solutions designed to cater to the complex needs of high-viscosity, shear-sensitive, and abrasive fluids.  Let's delve into the features that make these pumps the preferred choice for industries worldwide.

Superior Design for Unmatched Performance
Precision Engineering: Each component, from the rotors to the bearings, is crafted with high-precision CNC machines, ensuring a high degree of accuracy and reliability.
Long Service Life: The pumps are designed to minimize friction, with careful attention to the between rotors and the pump casing, resulting in a long and low-maintenance service life.
Energy Efficiency: With their innovative design, Bonve pumps consume less energy while providing high transfer rates, making them an eco-friendly choice.

Versatile Applications Across Industries

Bonve pumps are not one-trick ponies;  their applications span across various sectors, including:
Food Industry: Safe and gentle handling of products like chocolate, sauces, and dairy products without altering their taste or texture.
Pharmaceutical: Reliable and precise dosing for drug manufacturing, ensuring the integrity of sensitive pharmaceutical fluids.
Chemical Processing: Effective management of high-viscosity and abrasive chemicals with ease.
Paper Industry: Efficient transfer of coatings and adhesives, contributing to the smooth operation of paper machines.

The Science Behind the Success

The working principle of Bonve Rotary Lobe Pumps revolves around the synchronized rotation of two lobe rotors, creating a vacuum and discharge pressure that effectively move the medium without causing any damage or altering its composition.
Customization to Fit Every Need
Bonve recognizes the unique requirements of different industries and offers a range of pump models to cater to specific needs:
25BV12-05 to 400BV12-400: A spectrum of models designed to handle varying flow rates, pressures, and viscosities.
Sanitary Models: Designed with hygiene in mind, these models meet the stringent requirements of the food and pharmaceutical sectors.
A Commitment to Quality and Innovation
Bonve's commitment to quality is evident in their LEAN PRODUCTION approach, where every aspect of production is meticulously controlled to ensure zero defects.  Their pumps come with a range of certifications, reflecting the company's dedication to meeting international standards.

The Bonve Advantage

Global Reach: With a presence in over 30 countries, Bonve serves a diverse clientele with tailored solutions.
Innovation: Continuously investing in R&D, Bonve has obtained numerous patents for their innovative designs.
Customer-Centric: Bonve's customer service is as reliable as their pumps, ensuring prompt and effective solutions.
Conclusion
When it comes to the backbone of industrial fluid management, Bonve Rotary Lobe Pumps stand out as the preferred choice for their robust design, versatility, and commitment to quality.  As Ningbo Bonve Pumps Co., Ltd. continues to innovate, industries worldwide can rely on their pumps to keep their processes flowing smoothly and efficiently.

Hello there! Today, let’s talk about pumps—the unsung “hearts” of industrial operations. But did you know? Not all pumps are created equal!

Thanks to two groundbreaking design innovations, our pumps deliver unmatched stability, durability, and cost savings. Let’s dive into the “secret tech” hidden in the details!



1. Bearing Design: Six-Point Support for Rock-Solid Stability!

Imagine balancing a glass of water with three fingers instead of two—wouldn’t it be steadier? That’s the philosophy behind our bearing system!

Pain Points of Traditional Pumps:

Most competitors use 4 bearings, leading to shaft wobbling, faster wear-and-tear, and frequent maintenance.

Our Solution:

Six independently placed bearings create a “triple-support” structure for each shaft:

Front-End Double Lock: Two cylindrical bearings secure radial movement, eliminating side-to-side wobble.

Back-End Powerhouse: A double-row angular contact bearing locks axial displacement, preventing forward/backward shifts.

Benefits You’ ll Love:

Zero vibration, zero pulsation—whether handling high or low pressure.

Extended bearing life boosts durability for the shaft, mechanical seal, and entire pump.

Maintenance? Barely needed! Save time, labor, and repair costs.

More details about Bonve lobe pump pls click the picture.

2. Shaft Key Design: No More Slipping, Just Seamless Sync!
Traditional pumps use shrink disks to connect gears and shafts—like glueing parts together. Under high pressure or sudden starts, gears slip or collide, causing breakdowns.
Our Innovation:
Meet the shaft key structure—a Lego-like precision fit!
Gears and shafts interlock via precisely machined keyways, ensuring perfect synchronization.
Handles high pressure, viscous fluids, and instant startups without a hiccup!
Why It Matters:
Zero collisions, zero downtime—maximize production efficiency.
Slash failure rates and keep your operations running smoothly.

3. Why Choose Us?
Stability: 6 bearings vs. competitors' 4.
Durability: Shaft keys outlast shrink disks.
Peace of Mind: Reduce maintenance costs—your team will thank you!

Final Thought:
A pump's true power lies in its hidden details. Our design isn't about flashy features—it's about making your operations faster, smoother, and hassle-free.
Next time you need a pump, ask: “Does it have six bearings and a shaft key?”

Ready to upgrade? Contact us for a tailored solution!