END SUCTION CENTRIFUGAL PUMPS TO EN733 (DIN 24255)

NT, NSHD & NB MONOBLOCK

 

APPLICATION

  • Air Conditioning
  • Water Supply
  • Irrigation
  • Water Treatment
  • Circulating and Heating Systems
  • Swimming Pools
  • Chemical and Petrochemical Industries

 

DESCRIPTION

Suitable for clean liquids, which are not chemically aggressive to the pump materials.          

Standard as single stage pumps with a variety of sizes offering a two stage options.                  

Interchangeability - The entire range offers 40 different sizes, utilizing only 5 bearing brackets, therefore allowing for less stock holding.         

Pump Flanges are rated for 10 bar and drilled to EN 1092.1 (PN 10/DIN 2532).         

Two stage centrifugal pumps        

Two stage pumps are able to achieve much higher pressures and require substantially lower NPSH. 

The versatility of this design allows for conversion from single stage to two stage, or vice versa without the need for machining of the parts. 

NT

Sealed for life deep grooved ball bearings, offer a maintenance free life cycle.
(40000 hours).            

Back pull out design for ease of maintenance, allowing the pump to be disassembled (for routine maintenance) without removing the volute casing from the pipe work provided a spacer type coupling is fitted.            

NSHD

The volute may be rotated to facilitate alternative discharge pipe work installations.            

Heavy duty oil lubed angular contact bearings are fitted which makes the pump ideal for belt drive applications.                    

NB

Utilises the volutes and impellers from our well established NT and NSHD range of pumps.

Stub shaft design which is attached onto the motor shaft, therefore the pump runs off the motor bearings and does not utilize it’s own bearing assembly.                       

The volute casing is attached to the motor by means of a pump to motor bracket, thus space saving option when compared to long coupled pumps. The closed coupled design is also more economical, cost saving design because it does not require a base plate.        

Motor

Standard I.E.C flange mounted or foot and flange mounted, three phase 380 or 525 volt, totally enclosed fan cooled motors are used with either cast iron or aluminium frames.