143 Series Electric Driven Gerotor Pumps
For circulating oil lubrication systems
SKF 143 Series pump units are self-priming, positive-displacement pumps with constant flow and high efficiency. They are suitable for a variety of applications, including hydraulic, hydrostatic, and cooling systems, as well as circulating oil and flow-through lubrication systems.
SKF 143 Series gerotor pumps are highly efficient and operate in a low flow range of 0.85 to 50 l/min at pressures up to 50 bar. They are characterized by extremely smooth operation, low noise levels, and good suction capacity.
Floor-mounted, flange-mounted, and pump-only versions are available. The 143 EEX versions are designed for reliable and safe operation in explosive environments (Zones 1, 2, 21, and 22).
Technical characteristics and advantages
- Low volumetric flow pulsation improves smooth operation
- Gerotor with cycloid circuit improves suction performance
- Low-noise operation
- Wide viscosity range of standard mineral and synthetic lubricating and hydraulic oils
- Compact design with pump, motor, coupling and seal
- Possibility of execution according to individual requirements
- The reliable and robust gerotor pump unit is developed and manufactured in Germany
- ATEX gas II 2G c IIC T4 Gb; ATEX dust II 2D c IIIC T120° C Db
Application areas
- General mechanical engineering and industrial technologies
- Shipbuilding and offshore industry
- Pulp, paper and printing industry
- Heavy industry
- Application in explosive dusty or gas environments (EEX version), such as:
- Oil and gas industry
- Energy
- Chemical and pharmaceutical industry
- Food industry
- Shipbuilding
- Forestry industry
Documentation
Description
| Operating principle | gerotor pump | |
| Lubricant | mineral and synthetic lubricating and hydraulic oils with viscosity: 20–1000 mm²/s | |
| Dosage volume | 0.85–50 l/min | 0.22–13.21 gpm |
| Suction height | max 1000 mm | 39.4 inches |
| Operating temperature | from 0 to +40 °C | from +32 to +104 °F |
| Lubricant temperature | from 0 to +80 °C | from +32 to +176 °F |
| Working pressure | 20–50 bar | 290–725 psi |
| Drive speed | 1400–2000 rpm | |
| Electric motor drive | IEC squirrel cage motor | |
| Suction connection | 0.85; 1.7 l/min: G 1/4 2.5 l/min: G 3/8 5.25; 9 l/min: G 1/2 12.5 l/min: G 3/4 19; 30; 40 l/min: G1 50 l/min: G 1 1/4 |
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| Connection pressure | 0.85; 1.7 l/min: G 1/4 2.5 l/min: G 3/8 5.25; 9 l/min: G 1/2 12.5 l/min: G 3/4 19; 30; 40; 50 l/min: G1 |
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| Protection class | IP 54 | |
| Explosion protection class | ATEX ATEX II 2G c IIC T4 Gb ATEX II 2D c IIIC T120°C Db |
IECEx (motors only) Ex de IIC T4 Gb Ex tb IIIC T120°C Db |
| Dimensions depending on the model | ||
| min. | 144 x 205 x 319 mm | 5.67 x 8.07 x 12.56 inches |
| Max. | 300 x 276 x 676 mm | 11.81 x 10.87 x 26.61 inches |
| Installation position | separate or flanged installation on the tank | |
| The product can be configured using a configuration code. The order template includes the applicable part number and an explanation. | |
| 143-11ND03E-RA+1FX |
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| You can configure your product using the CAD configurator below. This will provide you with a specific order number. More detailed information is available in the product catalog. | |
Configure a standard design, download a CAD file






