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DPNL
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Powerful & versatile

The DPNM Standard centrifugal pump is specially designed for circulation processes that demand a large capacity pump that is compact in size. This pump is often used as a circulating pump in HVAC applications, such as condenser, cooled and heated water systems; by using the various material options (cast iron, bronze and stainless steel) and various sealing options, it can also be very durable when applied in industrial applications and civil projects.

Working range

  • Max flow: 450 m³/h
  • Max head: 100 mwc
  • Liquid temperature: -10 ˚C – +110 ˚C
  • RPM: 1000 – 3600
  • Pressure class suction: DN 50 – DN 200
  • Pressure class discharge side: DN 32 – DN 150

Durable materials, low vibration level

The balanced construction ensures this pump has a very low vibration level. This results in smooth operation with low noise and a long life.

Even the choice of material contributes significantly to the durability and operation of the pump. Depending on the medium to be pumped, the pump can be made from:


  • cast iron
  • bronze
  • stainless steel

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Applications

  • Pump stations
  • Cooling towers
  • Filling and emptying of reservoirs
  • Circulation of hot and cold water in central heating and cooling systems
  • Pumping condensate
  • Circulation of swimming pool water
  • Sanitary and cleaning systems
  • Industrial applications
  • Fire-extinguishing systems
  • Irrigation
  • Drainage
  • Drinking water systems on board ships

Installation and ease of maintenance

Thanks to the compact design of the pump and horizontal design, the pump has flexible employability, also in areas where there is limited vertical space available.
With their unique pull-back design, DPNM series pumps are easy to maintain. The pump and motor are separate components, and the motor shaft and pump shaft are coupled using a special clamp. This makes it easy to remove the pump shaft, motor and other components without removing the suction and pressure flanges or pump housing




Efficiency

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The heart of the pump is an efficient hydraulic design. The impellers can be fine-tuned to meet the operating point. This means the pump has very efficient operation. As standard, the pumps are fitted with energy-efficient motors that are suitable for use in combination with a frequency converter in accordance with IEC 60034, which means even higher efficiency can be achieved.


Technical properties DPNM

  • Single-stage, standard centrifugal pump, directly linked to an asynchronous motor, closed type with external cooling
  • Main dimensions in accordance with EN 733 (DIN 24255)
  • The motors are suitable for use in combination with a frequency converter in accordance with IEC 60034.
  • A closed radial impeller with one input, dynamically balanced, so that the axial force is compensated.
  • Flanges of the pump according to ISO 7005-2, DIN 2533, PN16
  • Drain plug on the underside of the pump housing

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