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Pump Selector

pump

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Model NRS 80/250A
Family NR
Code 70WA204000003
Speed Fixed speed
Max Flow Rate 141,00 m³/h
H max 83,90 m
Pump casing Cast iron GJL 200 EN 1561
Min Flow Rate 48,00 m³/h
Min head 71,50 m
kW 37,00 kW
Power consumption ---
Efficiency ---

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Pump and motor datasheet

Cast iron GJL 200 EN 1561 249.00
mc/h
m
 
0
Your selection
19219
NRS 80/250A
70WA204000003

 

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Pump and motor datasheet

  • n (rpm):

    2900

  • N. of impellers:

    1

  • H max (m):

    83.90

  • H min (m):

    71.50

  • Q min (mc/h):

    48.00

  • Q max (mc/h):

    141.00

  • Pn (kW):

    37.00

  • Pn (HP):

    50.00

  • Impeller diameter (mm):

    249.00

  • Motor type:

    IM

  • Motor phases:

    3~

  • Un (V):

    400/690

  • fn (Hz):

    50

  • Motor poles:

    2

  • Service:

    S1

  • Min liquid temperature (°C):

    -10.00 °C

Construction materials

  • Pump Casing:

    Cast iron GJL 200 EN 1561

  • Casing Cover:

    Cast iron GJL 200 EN 1561

  • Lantern bracket:

    Cast iron GJL 200 EN 1561

  • Impeller:

    Cast iron GJL 200 EN 1561

  • Shaft:

    Cr-Ni-Mo steel 1.4401 EN 10088 (AISI 316)

  • Mechanical Seal:

    Carbon-Ceramic-NBR

  • Counterflanges:

    Steel S235JR 1.0038 EN 10025-2

Dimensions (mm)

  • a 620.00 mm
  • fM 1138.00 mm
  • h1 150.00 mm
  • h2 310.00 mm
  • h6 988.00 mm
  • j1 85.00 mm
  • j2 42.50 mm
  • j3 147.20 mm
  • l1 179.00 mm
  • l2 192.00 mm
  • AD 300.00 mm
  • x 120.00 mm
  • dn1 80
  • dn2 80
  • s1 M10
  • P 400
Dimensions (mm)

NR

In-line pumps

Construction

Close-coupled, single-impeller, centrifugal pumps; electricmotor with extended shaft directly connected to the pump.

NR, NR4 series: Single head electropumps.
NRD, NRD4: Twin head pump with built-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).
Version with frequency converter (on request)

Application

For clean liquids without abrasives, which are non-aggressive for the pump materials ( solids content up to 0.2%).
For heating, air-conditioning, cooling and circulation plants.
For civil and industrial applications.
When low noise operation is required (n ? 1450 rpm).

Operating conditions

Liquid temperature from -10 °C to +90 °C.
Ambient temperature up to 40° C.
Total suction lift up to 7 m.
Maximum permissible working pressure up to 10 bar.
Continuous duty.

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