| 摘要 |
A pressure sensor unit (1) consists of a shaft part (2) adapted to be introduced in an opening (24) through a pipe wall (14) or chamber wall, and a flange part (17) fastened on the outer end (18) of the shaft part for providing sealing around the outer end (19) of the opening. The shaft part inner end (6) reaches in to engagement with a process fluid (16) which pressure is to be measured. The inner end (6) is provided with perforations (22) for admitting process fluid into the inner room of the shaft part. In the inner room and straight behind the inner end (6) it is arranged a block (8) which constitute a base for a separating membrane (7) for transferral of the process fluid pressure via a hydraulic pipe (10) to a pressure sensor element (4) in the flange part (17). The flange part (2) is constructed as a thin walled pipe, which is enabled because of internal pressure equalisation. Thus great savings is achieved by production of the pressure sensor unit. |
