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Stainless Steel Food Grade Rotary Lobe Pump for Ketchup

Bonve specializes in lobe pumps for the food industry, ensuring hygiene, efficiency, and reliability. Crafted from premium stainless steel, Bonve lobe pumps meet international food safety standards and handle high-viscosity, particle-laden media with ease. Their low-shear design preserves product quality, while CIP/SIP compatibility simplifies cleaning. Bonve's lobe pumps are the ideal choice for food producers seeking efficient conveying solutions.
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Stainless Steel Food Grade Rotary Lobe Pump for Ketchup


Ketchup, as a typical non-Newtonian fluid, places extremely high demands on conveying equipment during production, processing, concentration, storage, filling, and transportation. Its physical properties—such as high viscosity, high particulate solids content, and shear sensitivity—often pose significant challenges to conventional conveying methods.


Challenges in Tomato Sauce Transportation Industry  


1. Extremely High Viscosity  

Tomato concentrate typically has very high viscosity, causing conventional centrifugal pumps to experience a sharp drop in efficiency under such conditions—sometimes failing to draw in or transport the fluid, resulting in pipeline blockages and production halts.


2.Solid Content and Particle Integrity Protection  

Tomato sauce often contains tomato seeds, fibers, or diced pieces (such as chopped tomatoes). If the internal clearance of the pump is too small or the flow rate is too high, particles may be crushed or compressed, compromising the product's texture and sensory characteristics.


3.Shear Sensitivity  

Ketchup is highly sensitive to shear forces. High-speed pumps can disrupt its fiber structure and consistency, leading to "weeping" or thinning of the texture, which affects the final product's grading.


4.Stringent Sanitation and Cleaning Requirements  

As a food-grade medium, ketchup transportation must comply with FDA or 3A sanitary standards. The sauce is prone to accumulation and fermentation in dead corners; traditional mechanical seals or pump chamber designs that fail to enable CIP and SIP may result in microbial contamination exceeding limits.


5.Equipment Wear and Seal Failure  

Tomato sauce is slightly acidic and contains particulates that can cause abrasive wear on pump components during high-speed flow. Conventional seal designs are prone to damage from high pressure or particle ingress, resulting in costly downtime and maintenance.


Bonve, as a "delivery expert" in the tomato sauce industry


Bonve ofters the broadest range of its Rotary Lobe Pumps for ketchup Industry. As an excellent pump manutacturer, our hard technical barriers have become a powerful help for our Bonve pumps reform and innovation. So far, Bonve pumps have developed to the fourth generation and are mature.


Interchangeable

1.Interchangeable rotors, one pump multi-purpose.

2.Targeted seal for specific application, ensure zero leakage.


Easy maintenance
1.Compact structure, easy assembling and disassembling.
2.Maintenance in place, easy cleaning. CIP able and SIP able.
3.Few wearing parts, low maintenance.


Long life
1.All main parts proceed by CNC, high precision fabrication.
2.No contact between the rotors, rotors and pump chamber.
3.six bearings with separate arrangement, high balance.
4.Adjustable seal ring extends the shaft life.
5.Axis key synchronous adjustment, no rotor collision problem.

 





Bonve has an advantage over lobe pump that no other company can match.


1.Rotor:The error of the rotors processed by CNC is extremely small. The unique rotor perfectly seals the inlet and outlet of the pump. The vacuum degree of the pump is up to -0.095MPA. The rotor material and type can be selected according to the characteristics of the pumped product.

 

2.Shaft: The transmission shaft is processed by CNC machining center, which has characteristics of high precision, high bending strength and strong wear resistance.

 

3.Pump cavity: The pump cavity is sealed by a pump cover that can be opened quickly, enabling quick maintenance of the pump. The pump body is processed by CNC machining.

 

4.Gears:High-precision, High-Standard synchronous gears have good meshing, smooth transmission, low noise, and excellent bearing capacity.

 

5.Mechanical seal:The seal material and type are selected according to the characteristices of the pumped product, to ensure zero leakage, no pollution, and more environmental production.

 

6.Bearings: Six bearings arranged in a separate arrangement increase the concentricity of the pump operation, enhance the bearing capacity of the shaft and make the pump running more stable, thereby increasing the service life of the shaft and the mechanical seal.

 

7.Gear box: The gear box is processed by CNC, with high precision, high concentricity and strong versatility.

 

8.Spindle:We use splines the bearings and spindle, makes the pump less likely to slip. The high-precision spline makes the pump run more smoothly, and the service life is much higher than that of its peers.




More applications


In addition to chocolate transfer applications,Bonve stainless steel lobe pumps are widely used in the food, dairy, confectionery, beverage, and wine industries.  Typical transfer media include: chocolate, condensed milk, cheese, mayonnaise, yogurt, honey, syrup, sucrose, ketchup, tomato paste, butter, concentrated juice, jam, ice cream, milk, yeast slurry, meat paste, jelly, condiments, soy protein, various beverages, and wine.



 Working Principle


 

Bonve lobe pumps basically consist of two lobe rotors, which rotate synchronously driven by a pair of synchronous gears in the gearbox. The rotors are driven by the main shaft and sub-shaft to rotate in a synchronous reverse direction, which changes the pump capacity, builds up high vacuum and discharge pressure, thus an efficient pumping is formed. Gap is kept between the rotors and between the pump casing, no friction, long life, no damage, no physical and chemical reaction to the pumped products.


Bi-wing rotor diagram

 

 

Tri-lobe rotors diagram

 

 

 

Main Parts of the Complete Pump


Bonve complete pumps are usually composed of bare shaft pump, coupling and its guard, geared motor and baseplae. With your order, bare shaft pump or complete pump is supplied.

 

 

 

Bare Shaft Pump Structure


Based on the port direction, we have the pump with horizontal port and vertical port to meet your site installation.

 

 

Structure Details

 

 

 

Complete Pump Types

 

Sanitary Rotary Lobe Pump for Yogurt


 Technical Parameters


Model

Displace

-ment

RPM

Flow

Dis. Pre.

Power

Vacuum

Port size

Max

viscosity

 

(L/r)

(r/min)

(m³/h)

(Mpa)

(kW)

(Mpa)

(mm)

(cp)

25BV12-05

0.06

10-1000

0-0.5

0-1.2

0.37-1.1

-0.080

25

1,500,000

40BV12-2

0.15

10-1000

0-2

0-1.2

0.75-2.2

-0.080

40

1,500,000

50BV12-5

0.32

10-800

0-5

0-1.2

1.5-4

-0.085

50

1,500,000

65BV12-10

0.65

10-600

0-10

0-1.2

2.2-7.5

-0.085

65

1,500,000

80BV12-20

1.74

10-500

0-20

0-1.2

4-15

-0.095

80

1,500,000

90BV12-30

2.60

10-500

0-30

0-1.2

5.5-22

-0.095

100

1,500,000

100BV12-40

3.65

10-500

0-40

0-1.2

7.5-30

-0.095

100

1,500,000

125BV12-50

4.60

10-500

0-50

0-1.2

7.5-37

-0.095

125

1,500,000

140BV12-70

6.10

10-500

0-70

0-1.2

11-45

-0.095

150

1,500,000

150BV12-80

7.63

10-500

0-80

0-1.2

11-55

-0.095

150

1,500,000

200BV12-120

11.56

10-400

0-120

0-1.2

15-75

-0.095

200

1,500,000

250BV12-150

14.22

10-400

0-150

0-1.2

18.5-90

-0.095

250

1,500,000

300BV12-200

20.80

10-300

0-200

0-1.2

22-110

-0.095

300

1,500,000

350BV12-300

32.60

10-250

0-300

0-1.2

45-160

-0.095

350

1,500,000

400BV12-400

50.40

10-250

0-400

0-1.2

55-200

-0.095

400

1,500,000

Note:
1. Tested medium: water. 
2. Speed, flow rate, electrical power and pressure will be varified according to different product properties.


 Selection Guidelines


Your Industry

 

About pump medium

Name:

Density (g/m³):

Viscosity (mPa.s):

Temperature (℃):

PH value:

Solid content (%):

Solid size (mm):

Suction side

Pressure: Positive (    ) bar; Negtive (    ) bar

How high (m):

Suction pipe length (m):

Diameter (mm):

Bends (Pcs):

T-piece (Pcs):

Valves (Pcs):

Discharge side

Pressure (Mpa):

Vertical delivery pipe length (m):

Total delivery pipe length (m):

Diameter (mm):

Bends (Pcs):

T-piece (Pcs):

Valves (Pcs):

Required flow rate (L/H)

Operating flow:

Max. flow:

Pump material required

SS304 (    )  SS316 (    )  SS316L (    )  Duplex stainless steel (    )

Motor required

Phase: Single (    )

Three (    )

Voltage (V):

Frequency (Hz):

IP grade:

Energy efficiency:

Anti-explosive:

Installation type

Fixed (    )

Movable (    )

Fixed with adjusting feet (    )

Others

 

 


8 steps for your guideline to select Bonve pump
1. Your product name
2. Product viscosity in pump, line and at rest

3. Are there any solids present, if so what are they and percentage concentration
4. Specific gravity

5. Capacity required

6. Pumping temperature

7. Discharge pressure or sketch of pipework system
8. Suction pressure or sketch of pipework system



About us


Low Shear Pump for Yogurt Production

 

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

Bonve pumps and mixers are widely used in food, dairy, beverages, chemical, pulp&paper, soaps&detergents, pharmaceuticals, pesticide, coatings etc. By 2024, Bonve served 8,000+ customers in various industries and 100,000+ pumps running in the worldwide.

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


Certificate


Bonve ISO9001, ISO14001, ISO45001 certificates ensure quality consistency, compliance reliability, environmental responsibility, and operational efficiency, delivering trustworthy and sustainable partnerships for our clients.

With CE and FDA certificates,Bonve pumps are globally recognized. These certificates open doors to major markets, and they're a testament to our pumps excellence for you.




How customers' comments on Bonve Lobe pump 


Comment on the pumps surface finish

We worked with are-seller in food industry and they are very happy withBonve lobe pump surface smooth finish and price.

If your team is dealing with similar pain points—whether it's subpar materials, inconsistent finishes, or non-compliant equipment—let's connect. We're here to deliver the same peace of mind and performance to your operations.



 

Feedback on Bonve lobe pump inner structure and running

We worked withthecompanies in chemical industry and they are satisfied with our pump silent and smooth running. If you want to get rid of such usage troubles of yourexisting pumps, we are ready to provide you with the same high-value solution.


 



FAQ


Q: What's the lead time for orders?
A:Bare shaft pumps: 7 workdays (standard). Complete pumps with motor: 20 workdays (standard)

Q: What's the Warranty Policy?

A: Standard 15 months from manufacturing date. Service :Free replacement parts within 3 workdays for non-human
quality issues.

Q: Can i request Delivery Time?

A: Absolutely! Bare shaft pumps: 7 workdays (standard). Complete pumps with motor: 20 workdays (standard)

Q: Operatlon Guidance?

A: Provided with full English manual (installation, operation) and training files (maintenance, troubleshooting). Remote
technical

support available if needed

Q: Do you have the Custom Solutions?

A:Supported: Adjust material (stainless steel/cast iron), parameters (flow rate/head), or design (vertical/mobile). Lead time
20-30 workdays (varies by complexity); progress updates provided.

Q: Can I place an order directly at the price displayed on the page?
A: No. Please confirm with us prior to placing your order. Prices vary according to different configurations.

Contact Us


We welcome you to contact us for a Chocolate Transfer Pump solution if have any demand.  

Contact person: Cathy Bao

Tel: +86-574-87769810 Fax: +86-574-62962898

Mobile/Whatsapp/Wechat: +86 13616639068

Email: Cathy@bonvepumps.com






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We will contact you as soon as possible!

If you have questions or suggestions,please leave us a message,we will reply you as soon as we can!

HUATAI BONVE PUMPS CO.,LTD

When you choose a Bonve pump, you not only get the pump, but you also get the advantage of Bonve's engineering expertise and years of application knowledge in your industry.

Copyright © 2026 HUATAI BONVE PUMPS CO.,LTD. All Rights Reserved.

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