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Mains Units

B plunger pump

BC 21/20 S

Part number 905000

  • 21Flow, l/min
  • 200Pressure, bar
  • 1450Speed, rpm
  • 8Power, kW

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

Specification

Flow
21 l/min
Pressure
200 bar
Speed
1450 rpm
Absorbed power
8 kW
Shaft
Solid, Ø24 mm

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

Kits

Valves1

Part numberDescriptionPer pumpSuppliers
KIT 2Valve kit 

High pressure seals1

Part numberDescriptionPer pumpSuppliers
KIT 28High pressure seal kit 

Plungers1

Part numberDescriptionPer pumpSuppliers
KIT 206Plunger kit 

Low pressure seals1

Part numberDescriptionPer pumpSuppliers
KIT 208Low pressure seal kit 

Parts list

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

Part numberDescriptionQty in kitKit
1101A36KIT 2
6006266KIT 2
0021273KIT 28
0635123KIT 28
1101823KIT 28
0023673KIT 206
0301423KIT 206
0303183KIT 206
1101G93KIT 206
1403583KIT 206
0023893KIT 208
1101823KIT 208
1221643KIT 208

Motor

A 4-pole motor of at least 8 kW drives this pump at 1450 rpm.

MotorkWrpmFrameClassA at 400 VSuppliers
RNE 160Ma4 111475IEC 160MIE322.4  
RN 160Ma4 111450IEC 160MIE122.4  
RN 132Mb4 uprated 9.21440IEC 132MIE119.2  

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 132, 38 mm shaft (RN 132Mb4) BC10
  • IEC 160, 42 mm shaft (RNE 160Ma4, RN 160Ma4) No Udor flange listed for this motor.

Coupling

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

  • IEC 132, 38 mm motor shaft No Udor coupling listed: you need one for a 38 mm motor shaft to 24 mm pump shaft.
  • IEC 160, 42 mm motor shaft No Udor coupling listed: you need one for a 42 mm motor shaft to 24 mm pump shaft.

Gearbox for engine drive

Other Udor B pumps

BC 13/20 IBC 13/20 SBC 15/15 SBC 15/20 IBC 15/20 SBC 15/20 T MIBC 18/20 IBC 18/20 SBC 21/15 SBC 21/20 T MIBD 3.5/30 SBD 4.0/20 SBD 4.0/20 UBD 4.0/30 SBD 4.0/30 UBD 5.0/30 SBD 5.0/30 UBD 6.0/30 SBL 4.0/30 WBL 5.0/30 W