Chinese manufacturer vertical stainless steel cast iron centrifugal pump

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: 

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China Manufacturer Vertical Stainless Steel Cast Iron Centrifugal Pumps

China Manufacturer Vertical Stainless Steel Cast Iron Centrifugal Pumps
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 phenomenonfailure causeelimination 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 start3.
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 malfunctionCheck 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 normal3The frequency converter is damagedRepair or replace
Automatic transmission failure4.Pressure switch damageRepair or replace
 5The pressure transmitter is damagedRepair or replace
 6.Switch failureRepair or replace
Pump non - suction pressure gauge pointer to beat violentlyInsufficient water supply for perfusion, air leakage at the connection between pipeline and instrumentCheck 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


China Manufacturer Vertical Stainless Steel Cast Iron Centrifugal Pumps

China Manufacturer Vertical Stainless Steel Cast Iron Centrifugal Pumps
China Manufacturer Vertical Stainless Steel Cast Iron Centrifugal Pumps

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