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

Pump Control Panel, Control Box, Water Pump Conyrol Box manufacturer / supplier in China, offering Duplex Water Pump Automation of L922, 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.

Gold Member Since 2012
Audited Supplier

Duplex Water Pump Automation of L922

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Min. Order: 50 Pieces
Port: Shanghai, China
Production Capacity: 5000PCS/Year
Payment Terms: T/T
Task: Program
Structure: Closed-Loop
Mathematical Model: Linear
Signal: Continuous
Transport Package: Paper Carton
Specification: CE

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Basic Info

Model NO.: L922
Trademark: Leading Science & Technology
Origin: China
HS Code: 90328990

Product Description


MODEL:L922 / L932
Main technical data 
.Start typeDirect on line
. Qty of controlled pumpDuplex 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 with sensor free 
Under voltage protection
Over voltage protection
Rapid cycle  protection
Control and protect universal pump
Using water level sensor ,float switch or pressure switch to control pump start and stop
Applied for water supply by liquid level control through float switch or liquid probe
Applied for water supply by pressure control through pressure switch and pressure tank
Applied for drainage by liquid level control through float switch or liquid probe
Control characteristic
Duplex pump control
Build in function switch for water transfer ,booster and sewage lifting (drainage)
.Main pump / standby pump automatically alternate
.Main pump / standby pump automatically switch against malfunction
.Standby pump participate running if required
Other features
Pump last five faults record displaying
Pump accumulative running time displaying
Pump shaft anti-rust
Presenting one dry contact point (BA port)
Present RS485 port
Present user remote monitor
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 1 20mm

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

Duplex Water Pump Automation of L922
Duplex Water Pump Automation of L922
Duplex Water Pump Automation of L922
Duplex Water Pump Automation of L922

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