NR(D), NR4 In-line pumps

Cooling and heatingDomestic and gardenIndustrialAll
Written By Kristof Nagy

Construction

  • close-coupled, single-impeller, centrifugal pumps; electric motor with extended shaft directly connected to the pump

  • NR, NR4: single head pump

  • NRD: twin head pump with bulit-in automatic switching valve. The two head can operate singularly or in parallel

  • pump casing with suction and delivery connections with the same diameter and on the same axis (in-line)

  • connections: flanges PN 10, EN 1092-2.

  • counterflanges (on request):

    • NR,NR4 32,40,50,65 : Screwed flanges PN 16, EN 1092-1

    • NR4 100, NR4 125 : Flanges for welding PN 10, EN 1092-1

  • version with frequency converter (on request)

Applications

  • for clean liquids, without abrasives, which are non-aggressive for the pump materials (contents of solids up to 0.2%)

  • for heating, conditioning, cooling and circulation plants

  • for civil and industrial applications

  • when low noise operation is required (n = 1450 rpm)

Kristof Nagy
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N, N4 single and twin impeller centrifugal pumps
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