Self Priming Pump

 These pumps are suitable for pumping clean water and fluids which are not chemically aggressive to the pump 
components. They are extremely reliable,economical and simple to use,being particularly suitable for domestic 
applications such as the automatic distribution of water from small and medium-sized surge tanks, watering 
gardens,etc .These pumps should be installed in a covered area,protected against the weather. N.B.it is always 
advisable to install a foot valve or a non-return valve on the suction opening.
 
Specification

Item	Self Priming Pump
Model	Self Priming Pump-NS-150-260
Inlet and outlet diameter	150/150
Power	15 KW
Suction	10-15m
Lift	15m
Flow(m3/h)	260m3/h
Speed	2000r/min
Surface treatment	Outside or inside anti-corrosion treatment can supply
Inspection	Chemical and physical property inspect
Application	Suitable for the shaft, well, and digging carry water, used for drainage and irrigation

Operating limits
Suction lift up to 9m
Fluid temperature up to 60 °C
Maximum ambient temperature 40 °C

Features
Seal mechanical 
Attractive design
Low noise, steady performance 
No leakage
High concentricity of components
Easy installation, easy maintenance
 
Performance
Ample and stable characteristic curves.
Outputs having good absolute values and tendencially flat curves.
Flat absorption curves at high delivery rates,preventing motor overloading even during prolonged use.
Good suction capactities both at low and hight delivery rates.
 
Structural Characterusteristics
Cast iron pump body
Stainless steel pump body cover
Stainless steel mechanical seal(graphite ceramic)
Brass impeller with centrifugal radial flow type
Protection IP44
With thermal overload protector in single phase motor
NSK bearing or local bearing
 
Application

• The pump is supplied to pump water from pumping well, native well and river and it can be used for drainage and farmland irrigation. 
• The pump with deep suction, high lift head, large flow rate and high efficiency etc. it is more convenient to be used.
• New water pump, the bearings should not add too much lubricating oil; if it is fever it because the small gap between the new machine element, but it will not affect the pump’s quality. It will be better out of the breaking-in period
• After 1000 hours’ working, the bearing should be cleaned and oil should be changed.
• Long-term no use the pump, you should draw water off the pump, coated with anti-oil on the screw and move to the storage room.

Characteristics
1.Three bearings
2.Impeller balance
3.The spindle chrome plated
 
Failure and the solution

Problem	Cause	Solution
Water pump not bibulous	Water diversion, water pump and pipeline leak. Suction height is too high, the direction of rotation is wrong, speed is not enough. Packing loose or badly worn.	Add water, tight water inlet joint screw, reduce the  suction lift, change the direction of rotation,  improve speed, compression packing or replace  the packing.
The flow rate  is too low	Bottom valve jam, jams, impeller suction height is too high, packing wear.	Clear jam. Lower suction height, improve speed,  change of packing.
Pump power  consumption	The impeller wear, bearing damage.	Replacement.
Pump overall  vibration.	Inappropriate fixed installation, damage  of impeller, pump shaft bending.	Reinstall the fixed, replacement impeller, replace  the spindle.