| 摘要 |
The present invention relates to an apparatus (1) for measuring pressure and temperature respectively in fluid conduits (3) to heating and cooling plants. The apparatus comprises at least one nipple (4), screwed into a fluid conduit socket (14 and 15 respectively) at a measuring point (2). The socket communicates with a signal path (16 and 17 respectively) and the nipple is provided with means (29, 30 and 31 respectively), which can be opened up and closed in relation to the signal path, as well as can be connected to a measuring instrument (6) via a measuring tube (57) and a connection device (5). A bypass (56) leads from the signal path to cavities (55, 45, 41) in the nipple, where valve means (42, 44) are provided, which can be opened up by the connection device (5). According to the invention said means (29, 30 and 31 respectively) are designed as valve means, which can close and open up respectively the entire nipple against the socket and the signal path, independent of said valve means (42, 44), said valve means (42, 44) being influenced by the connection device independent of the valve device and said bypass being opened up and closed respectively with a completely connected connection device. |
