| 摘要 |
<p>The pipe connector (1) has two pipe attachments (2, 3) and a transparent wall section (12). A sectionally transparent pipe unit (6) is inserted into the pipe connector in flow connection with the pipe attachments. A viewing window (10) is arranged in such a manner that a transparent section of the pipe unit is visible through the viewing window. An illuminating opening (11) different from the viewing opening is provided for indirectly illuminating the pipe unit. Independent claims are also included for the following: (1) a mixing block i.e. flow monitoring unit, for mixing oil and compressed air (2) a progressive distribution system for distributing of an oil-air mixture with a mixing block.</p> |
