Hunan, China
Business Type:
Manufacturer/Factory, Trading Company, Other
Management System Certification:
ISO 9001, ISO 14001
OEM/ODM Service
Sample Available
MEI Awards

Pump Control Box, Pump Control Panel, Pump Control Controller manufacturer / supplier in China, offering Direct on Line Dol Booster Pump Control for Water Treatment L931-B, Economical Three Phase Duplex Pump Control Panel (L532), Intelligent Single Pump Control Panel (MP-S1 plus) for Pump Manufacturer and so on.

Diamond Member Since 2012
Audited Supplier
Supplier Homepage Products Pump Control Panel for Pressure Boosting Type Direct on Line Dol Booster Pump Control for Water Treatment L931-B

Direct on Line Dol Booster Pump Control for Water Treatment L931-B

Get Latest Price
Min. Order: 10 Pieces
Port: Ningbo, China
Production Capacity: 60, 000 Sets Per Month
Payment Terms: L/C, T/T, Western Union, Paypal
Task: Program
Structure: Closed-Loop
Mathematical Model: Linear
Signal: Continuous
Function: Automatic Control, Protection, Monitoring
Certification: ISO: 9001, CE

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Basic Info

Model NO.
Input Voltage
AC380V 50Hz/60Hz
Three Phase
Rated Output Power
0. 75kw-4kw 5. 5kw-11kw 15kw
Protection Grade
Qty of Controlled Pump
Single Pump
Leading or neutral
Transport Package
Box+Paper Carton
Big size
HS Code
1  About Product

Direct on line DOL booster pump control for water treatment L931-B

Model L931-B is specially designed for 3 phase pressure booster pumping system by adopting pressure transmitter. Pump user can easily set the different pressure value and observe the dynamic pressure value in the pipeline.

2)Parameter form
General detail
ApplicationControl & protect booster pump only
Main technical data 
Start typeDirect on line
Qty of controlled pumpSingle pump
Rated input voltageAC380V Three phase
50HZ/ 60HZ
Rated output power0. 75kw-4kw (1 hp-5. 5hp)
5. 5kw-11kw (7.5hp-15hp)
15kw (20hp)
Protection functionOver load protection
Pump stalled protection
Dry run protection
Under voltage protection
Over voltage protection
Repeat start protection
Phase unbalance protection
Phase reversal protection
Open phase protection
Control characteristic
Connecting 0.5-4.5V pressure transmitter to replace pressure switch
Pump start and stop according to different pressure value setting
Other featuresLCD screen displaying dynamic real time pressure value 
Pump start and stop pressure value can be easily setting on the LCD screen
Pump accumulative running time recording
Pump last five faults record displaying
Present one dry contact point (BA port)
Present RS485 port
Present user remote monitor
LCD screen locked function under Auto state
Push button calibration
Main installation data 
Working temperature
Working humidity
Degree of protection
Install position
Unit dimension (L x W x H)
-25ºC-- +55ºC
20%--90%RH, no drips concreted
Wall mounting
310 x 220x 120mm

3)Typical usage scenarios include
-Holidays houses

-Water supply from wells
-Irrigations of greenhouses, gardens, agriculture
-Rain water reuse
-Industrial plants
-Waste water tank / Sewage sink

2  About us
1)Company Information 

Brief Introduction
Since 2001, Leading Science & Technology company has been providing pump control and protection solutions to pump users.
Today Leading Science & Technology offers a wide range of pump control panel & pump control accessories for the pump control and protection market.

Our products: Intelligent Pump Controller, Sewage Pump Controller, Booster Pump Controller, Deep Well Pump Control Box, Submersible Pump Controller, Pump Motor Starter,Programmable Logic Controller, IOT Pump Controller, Reverse Osmosis Controller.

For more information, please visit:

Our Team
Leading company has three major departments:
1. Sales Team
2. R&D Team
3. Production Team
Sales team collect the information and technical requirements from pump manufacturers, pump distributors, pump users etc and report to our R&D team. According to the information, R&D team will evaluate firstly and start to research,develop and test the pump controller. Finally once the pump controller is workable, our production team will produce.

With our team members' close cooperation, Leading company has been developing many unique control and protection technology for pump industry.

2)Our factory

Direct on Line Dol Booster Pump Control for Water Treatment L931-B

3)Our trading fair

Direct on Line Dol Booster Pump Control for Water Treatment L931-B

4)Customers visit factory.

Direct on Line Dol Booster Pump Control for Water Treatment L931-B

5)Qualification &Certificate

Direct on Line Dol Booster Pump Control for Water Treatment L931-B

1)Can i have some samples ?
Yes ,we can send you samples for testing,contact us for details.

2)What's delivery time ?
For standard pump control panel ,it usually takes about 7 working days;
For non-standard,it usually takes 15-20days ,please contact us for details.

3)Can I do OEM or ODM ?
Yes,we have our own engineering team and we do accept OEM and ODM,but there is ordering quantity requirement.

4)How does your factory do the quality control ?
Our production process follow up the ISO standard and we control the product quality from the raw materials to the finished product,each of our control panel will be fully assembled and strictly tested before packing and shipping.

5)What is the approximate life time for your control panel ?
The designed life time of control panel is 8 years.

6)What is your after sales service policy ?
According to the ordering quantity,we will give some free spare parts or controller for maintenance or replacement and we will give technical training.

7)How can i trust you ?
We have being developing the pump control panel manufacturing and selling for 15 years ,now many pump supplier from China and overseas are using our controller to control and protect their pump and motor.


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