Diaphragm Seals
990.48 Flanged Process Diaphragm Seal
The WIKA 990.48 diaphragm seal is available in place of a blind flange. Due to the extended diaphragm, the diaphragm seal can be used at thick-walled or insulated locations in pipeline and vessel construction.
| Pressure/temperature operating limit | 26 bar / 180°C |
|---|---|
| Level of cleanliness of wetted parts | Oil and grease free per ASTM G93-03 level F WIKA standard (< 1,000 mg/m²) |
| Connection to the measuring instrument | Axial adapter |
| Type of mounting | Direct mounting |
| Vacuum service | Basic service |
The WIKA 990.48 diaphragm seal is available in place of a blind flange. Due to the extended diaphragm, the diaphragm seal can be used at thick-walled or insulated locations in pipeline and vessel construction.
Assembly of the diaphragm seal to the measuring instrument may be made via a direct connection, for high temperatures via a cooling element or via a flexible capillary.
For the material selection, WIKA offers a variety of solutions, in which the upper body of the diaphragm seal, the extended diaphragm and the wetted parts can be made of identical or different materials. The diaphragm and the extended diaphragm can, as an alternative, be coated.
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Bart de Haan
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