Diaphragm seal with flange connection
Diaphragm seal with flange connection
Diaphragm seals are used to protect the pressure measuring instrument from aggressive, adhesive, crystallising, corrosive, highly viscous, environmentally hazardous or toxic media. A diaphragm made of the appropriate material provides for the separation from the medium to be measured. Thus even the most difficult measuring requirements can be met by combining measuring instruments with diaphragm seals. A system filled fluid inside, which can be chosen to suit the particular application, hydraulically transmits the pressure to the measuring instrument. Almost limitless application possibilities exist due to the large number of available variants, such as diaphragm seal designs or materials. The type of process connection (flange, threaded and sterile connection) and the basic method of manufacture are important design differentiation criteria. For further technical information on diaphragm seals and diaphragm seal systems see IN 00.06 “Application, operating principle, designs”.
Applications
- For assembly (direct assembly, via a cooling element or a capillary) with measuring instruments for low pressures and with differential pressure measuring instruments
- For aggressive, contaminated or hot media
- Chemical process industry, petrochemical industry
- Level measurement, filter monitoring
Special Features
- Internal diaphragm with large working volume
- Special materials available
- Low temperature error due to large diaphragm diameter (realisation of low measuring ranges possible)
- Wide temperature application range due to large working volume
- Integrated flushing connections (optional)
