1.General Description
NIS series single-stage single-suction horizontal pipeline centrifugal pump is the second generation of high efficiency energy saving product designed by our company based on many years of production experience.The NIS series are horizontal single-stage in-line centrifugal pumps which work smoothly with low vibration and noise. Due to their good structure designs, they can work for a long time without any problem. Furthermore they are assured of no water leakage.
 2.Introduction
NIS horizontal centrifugal pump, for conveying water and chemical and physical properties of the other similar liquid, applicable to industrial and urban water supply and drainage, high-rise buildings, landscape pressurized water and fire sprinkler turbocharged, distant distance transportation, HAVC refrigeration circulation, increase water changes the bathroom Pressure and temperature, the use of equipment less than 80 degrees .
Mechanical seal or combination of different mechanical seals can be used to seal axes of pumps. Furthermore the seal materials adopted such as Titanium alloys prolong the useful life of pumps.
They can be easily set up, examined and repaired without disassembling the combining the pump casings and motors and taking out all the rotor units.
3.Model Explanation 
NIS50-32-125 
N: our company(Norman)
IS: Single-stage single-suction
50: Suction inlet Diameter(mm) 
32: Discharge outlet Dia.(mm)
125: Impeller Diameter