Products Name:Horizontal multistage centrifugal pump
Specifications
1. high efficiency& save energy
2. long lasting
Application
LQDWF type pump are mainly used in industrial field:
Air-conditioning system
Cooling system
Industrial cleaning
Water treatment(Water purification)
Aquiculture
Fertilizing / metering system
Environmental application
Other special applications
Applicable medium
Thin and clean non-flammable and non-explosive liquid without solid granules and fibers.
Mineral water, soft water, pure water, edible vegetable oil and other light chemical mediums.
When the density or viscosity of to-be-conveyed liquid is larger than that of water, it is necessary to select a driving motor of high-power.
Whether a specific liquid is suitable for the pump depends on many factors, among which the most important ones are chlorine content, PH value,temperature, solvent and oil content.
Operation condition
Liquid temperature:
Normal temperature type: -15 celsius~+70 celsius
Hot water type: +70celsius~+110celsius
Highest ambient temperature: +40celsius
Max.operation pressure :10 bar
Max.inlet pressure is limited by max.operation pressure
Pump
Horizontal multistage non-self-priming centifugal pump, attached with long shaft electric motor.
Compact structure renders small size of pump;axial inlet and radial outle
Application
LQDWF type pump are mainly used in industrial field:
Air-conditioning system
Cooling system
Industrial cleaning
Water treatment(Water purification)
Aquiculture
Fertilizing / metering system
Environmental application
Other special applications
Applicable medium
Thin and clean non-flammable and non-explosive liquid without solid granules and fibers.
Mineral water, soft water, pure water, edible vegetable oil and other light chemical mediums.
When the density or viscosity of to-be-conveyed liquid is larger than that of water, it is necessary to select a driving motor of high-power.
Whether a specific liquid is suitable for the pump depends on many factors, among which the most important ones are chlorine content, PH value,temperature, solvent and oil content.
Operation condition
Liquid temperature:
Normal temperature type: -15 celsius~+70celsius
Hot water type: +70°C~+110celsius
Highest ambient temperature: +40celsius
Max.operation pressure :10 bar
Max.inlet pressure is limited by max.operation pressure
| fault phenomenon |
failure cause |
elimination methods |
| |
1.No power supply or one or two phase power supply is needed |
Check all phases of power supply and restore power supply
|
| |
2.Poor contact of ac contactor and burning of coil |
Repair or replace contactors
|
| can not start |
3.
The power switch is not closed, malfunction or damaged
|
Close the switch and replace it if the power indicator does not turn on |
| |
4.
Thermal relay trip or damage
|
Check whether the motor is blocked, find out the reason and eliminate it.Manual reset is replaced if it cannot be started |
| |
Water level is too low |
Put water in the sink
|
| |
The motor burned |
Repair or replace the motor
|
| |
1.Line is loose |
Check wiring and tighten connectors
|
| |
2.Frequency converter malfunction |
Check the fault content, check the cause according to the frequency converter manual, and restart after reset.Or disconnect the inverter power supply for a few seconds, the inverter fault reset before starting. |
| The manual is normal |
3The frequency converter is damaged |
Repair or replace |
| Automatic transmission failure |
4.Pressure switch damage |
Repair or replace |
| |
5The pressure transmitter is damaged |
Repair or replace |
| |
6.Switch failure |
Repair or replace |
| Pump non - suction pressure gauge pointer to beat violently |
Insufficient water supply for perfusion, air leakage at the connection between pipeline and instrument |
Check pipeline and bottom valve, refill water diversion. Tighten air leakage |
The pump consumes too much power
|
Too much flow, impeller wear
|
Check whether the pump shaft is bent, replace the impeller, close the outlet valve to reduce the flow |
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