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Rotary Lobe Pumps For Polyol

Bonve is an experienced polyol transfer pump manufacturer, which has served several polyol customers.
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Rotary Lobe Pumps For Polyol


Rotary Lobe Pumps for Polyol, we defined these pumps are Polyol Transfer Pump.

Polyols are a key ingredient in different polyurethane foams. Polyols are alcohols that have many hydroxyl radicals. Viscosity varies across different polyols and can be as thick as 40000 centipoise.


Polyols are often blended with isocyanates, so pumps handing polyols are often built using isocyanate compatible lubricants and required non-pulsating flow to ensure a proper mixing ratio. Polyols can also be mixed with polymer solids to enhance the properties of the foam produced when blended with isocyanates, which can necessitate abrasive resistant construction.



Bonve rotary Lobe Pump for polyol


Reasons to Choose Bonve Rotary Lobe Pump


Polyol Transfer Pump


Bonve is an experienced polyol transfer pump manufacturer, which has served several polyol customers. The core components of lobe pump are processed by CNC maching center, which has th characteristics of high precision, high bending strength and strong wear resistance. The seal material and type of bonve rotary lobe pump are selected according to the characteristics of the pumped product, to ensure zero leakage, no pollution, and more environmental protection. 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. These characteristics improve the stability of customers when handling with polyols.



Working Principle


starch adhesive Lobe Pump


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


starch adhesive pump for paper industry


Tri-lobe rotors diagram


starch adhesive pump for paper industry



Structure Details

starch adhesive pump for paper industry


Complete Pump Structure


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.


rotary lobe pumps for paper industry



Complete Pump Types


rotary lobe pumps for paper industry



Pump Technical information at glance


Performance

• Flow rate up to approx. 500,000 l/h

• Operation pressure up to 15 bar

• Suction head up to 9 mWC

• Product Viscosity: Up to 1,000,000 mPas

• Temperature Resistance: up to 250°C

• PH: 1-14


Design Structure

• Rotor type: Single-wing Rotors, Bi-wing(Butterfly)Rotors, Tri-lobe Rotors, Multi-impeller Rotors

• Seal type: Single-face Balanced Mechanical Seal, Double-face Water-cooled Machine Seal, Metal Bellows Mechanical Seal

• Flow direction: left↔ right, up↔ down

• Port connection: Clamp, thread and flange in different standards

• Installation type: Fixed, fixed with adjustable feet, mobile

• Pump Colors: Blue, Grey, White

• Heating or cooling jacket as per request

• Driving type: Fixed speed geared motor, variable speed geared motor, , Further materials on request


Materials

• Pump housing and cover: stainless steel AISI 316, 316L

• Mechanical Shaft Seals: Tungsten carbide, Silicon carbide, Further materials on request

Sealing Materials of O-rings: Viton, EPDM, Further materials on request



Technical Parameters


Model

Displace

-ment

RPM

Flow rate

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. Your liquid's density, viscosity and temperature are necessary to supply when choose the pump.
2. Speed, flow rate, electrical power and pressure will be varified according to different liquid properties.
3. Port size can be changed as needed.


About Us


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 2020, Bonve served 4,000+ customers in various industries and 50,000+ 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.


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Contact Us


We welcome you to contact us (trade@bonvepumps.com) for a pump solution if have any demand.



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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.

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