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CDL Multistage centrifugal pump
Easy disassembly
Easy disassembly and can be equipped with various motors
Energy-saving
Efficient and energy-saving motor+efficient hydraulic design
Anti-corrosion
All castings are treated by electrophoresis
Ultra-low mute
stable operation+Excellent fluid performance
Intelligence upgrading
AI Intelligent perception of private domain+Intelligent operation and maintenance


Multistage centrifugal pump


Multistage impeller High lift !
Multistage impeller series connection
Multi stage impeller series connection, which is equivalent to a collection of multiple centrifugal pumps, so the lift is high!

Vertical and split structure Small vibration !
Vertical structure
The pump covers a small footprint, and the center of gravity coincides with the center of the base plate, resulting in smooth operation, low vibration, and long service life!

Split structure
Pump and motor shaft independent structure design, it’s convenient for users to disassemble ,repair and can be equipped with various motors.

Adjustable stage Widely application!
Widely application
The lift can be adjusted to meet different requirements by changing the pump stage (number of impellers), so it has a wide range of applications!

Energy efficient Low-cost!
Efficient and energy-saving motor
GB standard motor, YE3/YE4 energy-saving motor, explosion-proof motor and variable frequency motor are optional!

Energy-saving hydraulic optimization
The excellent hydraulic power is designed with the simulation technique of fluid dynamics,to ensure the pump of
high efficiency and energy saving!

Energy-saving mechanical structure
The professional mechanical structure design and precision manufacturing lower efficiency loss, and achieve the effect of energy saving!

Dust and water proof Save maintenance costs !
Dust and water proof
The IP55 protection grade allows the pump to be used outdoors without the need to build a pump room, greatly saving infrastructure investment!

Anti-corrosion and wear resistance
The pump body, impeller, connection and other castings are treated by electrophoresis, the pump after 72 hours of salt spray test without corrosion!

Hard mechanical seal Low mechanical loss!
Low mechanical loss
The shaft seal adopts hard alloy mechanical seal, which is reliable in sealing, leak free, and has minimal mechanical loss!

Caliber concentric Convenient installation!
Convenient installation
The caliber is the same and on the same horizontal center line, it can be directly installed in any part of the pipeline without changing the pipeline structure, installation is very convenient!

Intelligent upgrade Ease of operation!
Intelligent operation and maintenance
As a pioneer of digital intelligent industrial pumps, We have the cutting-edge digital intelligent technology, and available digital intelligent upgraded pumps!

Application scenarios
Muti-stage centrifugal pump is a common fluid transfer equipment, which is widely used in many fields such as industry, construction, agriculture and municipal, and the following are some specific application scenarios:



Multistage centrifugal pump |
Basic type |
Intelligent type |
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APPEARANCE |
Product color |
Dark black+Deep sea blue |
Dark black+Deep sea blue |
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Installation dimension |
See product description for details |
See product description for details |
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Product packaging |
Plywood box(yellow)/Carton |
Plywood box(white) |
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CONFIGURATION |
Electrical motor |
GB standard |
Variable frequency / Energy-saving |
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Bearing |
C&U |
C&U/NSK/SKF |
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Shaft |
304 stainless steel |
304 stainless steel |
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Machine seal |
Ordinary |
Dry abrasion- resistant |
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Materials |
Cast iron |
Cast iron/QT450/304# |
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Parameter |
Pump efficiency |
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Energy efficiency |
IE1 |
IE2 |
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Insulation |
Class F |
Class H |
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Grease temperature |
-20~+150℃ |
-20~+180℃ |
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Protection class |
IP55 |
>IP55 |
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Noise |
< |
< |
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After-sales service |
The main components come with a one-year warrant |


Warning:Make sure the power is disconnected before remov-ing or adjusting the junction box and the pump.The external power switch connected to the pump motor has a minimum electrode gap of 3mm.
The voltage and frequency of the power supply should conform to the indicated value on the pump nameplate to ensure that the power supply meets the require- ments of use.Install and ground accurately according to the wiring method indicated on the junction box(shown on the right).
Note:Recommended 11kw and below starts directly,11-75kw starts with Star-Delta Starting mode.75-400kw starts with Soft Starting mode.In ad-dition,the 45-200kw can also start with Autotransformer Start mode.The starting method is not unique,please consult a professional.
(Two)Rotation direction check
Seen from the fan cover,the rotating arrow rotates clock-wise,As shown at right.
Caution!
Do not start the pump to check the direction of motor rotation until the pump boby is filled with liquid and removes air
Before connecting the pump to the pipe,the direction must first be determined by the flow
arrow on the pump head.To ensure the tightness of the pipeline connection,please install rubber washer or other Sealing material between flanges.As shown at right.