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The pasty consistency of grease imposes an important pressure of evacuation. It is obtained manually by screwing of the hat which gives a pressure which pushes grease towards the zone to be lubricated via an opening located in the content of the greasing device.
|The BOWEN model mark shows a steel pedestal (in grey). A small disc of leather (in black) integrated at the crimping time limits the unscrewing to the vibrations.|
| the text is WILLIAMS VALVE Co
CIN. O . DAISY No 2 |
PAT . 12.8.08