Product name: electric motor driven centrifugal pump
Main uses: High-rise buildings, fire protection, refrigeration systems and industrial, agricultural, hotel, deep well pumping water, fresh water and sea transport etc.
Detailed use:
1, water supply: Water filtration and distribution, water supply main pipe water area, the first increase in pressure, increased pressure of high-rise buildings.
2, industrial pressure: Industrial production water system, cleaning system, high pressure washing system, fire protection system.
3, industrial liquid conveying: Cooling and air-conditioning system, boiler feed water and condensate systems, machine matching, acidic and alkaline medium transport.
4: Water treatment system, water treatment system, ultrafiltration system, reverse osmosis system distillation system, separator and a swimming pool.
5, irrigation: Farmland irrigate, sprinkler irrigation, drip irrigation.
The transmission medium:
1, Non flammable and explosive medium, thin, clean, containing no solid particles or fibers.
2, such as mineral water, softened water, pure water, thin sewage water, food oil and other light industry media.
3, pump the main material for stainless steel, can be used in pumping mildly corrosive media.
Product use:
1. Medicine, food, beverage and other medium conveying, boiler feed water, living water booster, industrial circulating system and processing system, water treatment, other uses
Conditions of use:
1. Exploitation conditions the LVP. Series is suitable does not surpass in the transportation temperature 80 Centigrade. The clear water and the physico-chemical properties is similar to the clear water liquid.
The scope of performance parameter:
Performance parameter scope the LVP series altogether has 6 varieties, 114 specification its performance parameter scope is:
1. Current capacity Q=3.6~150m3/h
2. Lifts H=5~250m
3. Rotational speed n=1480~2950r/min
4. Power P=0.37~90kw
5. Induction port diameter Dna=50~100mm
6. Spout diameter DNm=40~80mm
| 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 |
