Type 531 can be easily welded into existing pipelines and, thanks to its flexible design, it is possible to manufacture special lengths according to customer requirements.
Even in larger nominal diameters, type 531 allows achieving working pressures of 63 barg or higher.
TECHNICAL DATA – Flow Sight Glass Type 531
| Flange Material: | Stainless Steel 316 Ti – 1.4571 Other alloys according to customer specifications |
| Form: | Flow Sight Glass |
| Gaskets: | Frenzelit novaphit® MST XP KlingerSil® C4400 Garlock Gylon® PTFE (pure or modified) More than 50 other sealing materials available upon request |
| Nominal Size (DN): | DN40 – DN400 |
| Nominal Pressure (PN): | PN10 – PN63 |
| Temperature / Glass: | up to 280 °C with borosilicate glass DIN 7080 |
| Options: | SGW cleaning brush (PTFE or silicone) LED lighting, available for Ex and non-Ex zones FEP or Halar® coating for additional chemical protection Mica protection disc against temperature and steam Double Glass |

















