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Mains Units

NK 500 plunger pump

NK-B 18/500 R

Part number 879200

  • 18.6Flow, l/min
  • 500Pressure, bar
  • 1000Speed, rpm
  • 17.8Power, kW

50 Hz Rated at a motor speed for 50 Hz mains (UK, Europe, Africa, Australia, most of Asia).

Specification

Flow
18.6 l/min
Pressure
500 bar
Speed
1000 rpm
Absorbed power
17.8 kW
Shaft
Solid, Ø30 mm

Exploded view (PDF, Udor)Dimensions (PDF, Udor)

Kits

High pressure seals1

Part numberDescriptionPer pumpSuppliers
KIT 153High pressure seal kit 

Plungers1

Part numberDescriptionPer pumpSuppliers
KIT 254Plunger kit 

Valves1

Part numberDescriptionPer pumpSuppliers
KIT 286Valve kit 

Low pressure seals1

Part numberDescriptionPer pumpSuppliers
KIT 287Low pressure seal kit 

Parts list

The parts that come in this pump's service kits, by Udor part number.

Motor

A 6-pole motor of at least 17.8 kW drives this pump at 1000 rpm.

MotorkWrpmFrameClassA at 400 VSuppliers
RN 200a6 18.5985IEC 200IE138  

The contactor and overload relay for each motor are on the motor's page.

Flange

The flange bolts the pump to the face of the motor. It depends on the motor's IEC frame.

  • IEC 200, 55 mm shaft (RN 200a6) No Udor flange listed for this motor.

Coupling

The flexible coupling joins the motor shaft to the pump shaft inside the flange.

  • IEC 200, 55 mm motor shaft No Udor coupling listed: you need one for a 55 mm motor shaft to 30 mm pump shaft.

Other Udor NK 500 pumps

NK-B 21/500 RNK-C 26/500 RNK-C 30/500 RNK-D 6.5/75 RNK-D 8.0/75 R