Hunan, China
Business Type:
Manufacturer/Factory, Trading Company, Other
OEM/ODM Service
Sample Available
MEI Awards
Distributorship Cooperation

Booster Pump, Pump Controller, Pump Control Panel manufacturer / supplier in China, offering Booster Controller for Single Pump (L921-B), 0.5HP-5.5HP Single Phase Duplex Boost Pump Control Box L922-B, 0.37kw-4kw Single Phase Double Blower Pump Control System L922-B and so on.

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  • Booster Controller for Single Pump (L921-B)

Booster Controller for Single Pump (L921-B)

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Min. Order: 50 Pieces
Port: Ningbo, China
Production Capacity: 5000PCS/Year
Payment Terms: T/T
Task: Program
Structure: Closed-Loop
Mathematical Model: Linear
Signal: Continuous
Function: Automatic Control
Certification: ISO: 9001, CE

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Basic Info

Model NO.: L921-B
Condition: Used
Customized: Customized
Start Type: Dol Start
Phase: Single Phase
Output Power: 0.37-2.2
Protection Grade: IP54
Rated Frequency: 50Hz
Trademark: Leading Science & Technology
Transport Package: Paper Carton
Specification: CE
Origin: China
HS Code: 90328990

Product Description

1.Product Information
ApplicationControl & protect booster pump only
Main technical data 
.Start typeDirect on line
. Qty of controlled pumpSingle pump
. Rated input voltage:AC220V-240V Single phase
50HZ/ 60HZ
. Rated output power:0.37kw-2.2kw (0.5hp-3hp)
Protection function
Over load protection
Pump stalled protection
Dry run protection
Under voltage protection
Over voltage protection
Repeat start 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 features
LCD 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
Presenting 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
2.Company  Information 

1)Brief introduction: as the supplier of pump control panel and control accessories, major products including: Intelligent Single / Dual Pump Control Panel, Motor Protector / Starter , Reverse Osmosis Controller, Anti-Clogging Reversal Pump Control Panel 
More information, please visit:
2)Our location and communication
From Guangzhou to Changsha takes 1hour by air, 2.5hour by high speed train
From Shanghai to Changsha takes 1.5hour by air, 5hour by high speed train
From Beijing to Changsha takes 2.5hour by air
From Hong Kong to Changsha takes 2hour by air
3)Our trading fair
EIMA International 2016 Show
Welcome to visit our booth in EIMA Inernational 2016 show
Booth No :C5,Hall No:33 ter
Time :Nov 9-13,2016

4)Our factory approved IS09000 certification and products has CE certificate  

3.Company Service

1)Payment Terms :we can accept payment by T/T ,L/C

2)Delivery Terms :by sea ,by air ,DHL,TNT,UPS,FEDEX


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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