China WCB-30 WCB series external lubricating gear pump:
WCB-type gear oil pump belongs to a low pressure micro-portable energy-efficient pump, suitable for flats for sale without motive power switch to oil barrels, also applies to oil refineries, power plants, power plants, transformer substation (room) and the oil depot .
| Type | Capacity | Pressure | Head | Speed |
| (l/min) | (MPa) | (m) | (r/min) | |
| WCB-30 | 30 | 0.3 | 30 | 2800 |
| WCB-50 | 50 | 0.3 | 30 | 2800 |
| WCB-75 | 75 | 0.3 | 30 | 2800 |
| WCB1-75 | 75 | 0.3 | 30 | 2800 |
