| Customization: | Available |
|---|---|
| Max.Head: | >150m |
| Max.Capacity: | >400 L/min |
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1. pplication Conditions:
LQDL (F) is aplicable for conveying the cold and hot cleaning water with the temperatures between -30C and +150C or the liquid which is not flammable or explosive, or they are free of solid particles or fibers. The maximum environment temperature is +40C.
2. Performance Parameters:
Flow Q= 1.0~180 3/h
Head H= 7~268 m
Rev n=2950 r/min
Power P=0.37~75 kw
Inlet diameter Dna=25~125mm
Allowable working pressure ≤25~40 bar
Rated frequency: 50 Hz or 60 Hz
3. Advantages:
Those with "F" means corrosion resistible
Small size
Effective
Less vibration
Easy maintaing
4. Applications:
Circulative pressure increasing
Water filtering in waterworks
Living water supply
Fire fighting system
Air conditioner
| 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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