CK plunger pump
CKD 5.5/51 S
Part number 740015
- 20.8Flow, l/min
- 350Pressure, bar
- 1750Speed, rpm
- 13.5Power, kW
60 Hz Rated at a motor speed for 60 Hz mains (North America, parts of South America and Asia).

Specification
- Flow
- 20.8 l/min
- Pressure
- 350 bar
- Speed
- 1750 rpm
- Absorbed power
- 13.5 kW
- Shaft
- Solid
Kits
Plungers1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| KIT 40 | Plunger kit |
Low pressure seals1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| KIT 42 | Low pressure seal kit |
Valves1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| KIT 63 | Valve kit |
High pressure seals1
| Part number | Description | Per pump | Suppliers |
|---|---|---|---|
| KIT 129 | High pressure seal kit |
Parts list
The parts that come in this pump's service kits, by Udor part number.
Motor
Rated at 1750 rpm, the speed of a 4-pole motor on a 60 Hz supply. The motors below are listed with their 50 Hz figures and are at least 13.5 kW. Order the one you pick wound for 60 Hz and your supply voltage.
| Motor | kW | rpm | Frame | Class | A at 400 V | Suppliers |
|---|---|---|---|---|---|---|
| RNE 160La4 | 15 | 1465 | IEC 160L | IE3 | 30.5 | |
| RN 160La4 | 15 | 1450 | IEC 160L | IE1 | 30 |
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 160, 42 mm shaft (RNE 160La4, RN 160La4) C14
Coupling
The flexible coupling joins the motor shaft to the pump shaft inside the flange.
- IEC 160, 42 mm motor shaft No Udor coupling listed: you need one for a 42 mm motor shaft to the pump shaft.
Gearbox for engine drive
Other Udor CK pumps
CKC 17/30 SCKC 17/36 SCKC 21/30 SCKC 21/36 SCKC 26/30 SCKC 26/35 SCKC 30/30 SCKC 34/25 SCKC 38/20 SCKC 42/20 SCKC 50/20 SCKD 4.5/51 SCKD 5.5/44 SCKD 6.0/51 SCKD 6.0/51 T MICKD 7.5/44 SCKD 7.5/44 T MICKD 8.5/40 SCKD 9.5/36 SCKD 9.5/36 T MICKD 11.0/32 SCKD 12.0/30 S