Type 325 sight glasses are manufactured from high-quality stainless steel 1.4571 (316Ti) or 1.4404 (F316).
The equipment is sealed using flat gaskets tailored to your requirements, available in a wide range of materials such as PTFE (Teflon®), NBR, novaphit® MST-XP, KlingerSil® C4400, and many other brands.
If the process conditions pose a problem even for highly resistant borosilicate glass, a specially adapted protective mica or FEP screen for the connection provides additional protection against steam and aggressive chemicals, such as alkalis with a pH value of up to 14.
As with other product displays, the Type 325 can be fitted, on request, with an SGW cleaning brush, SVI spray devices or LED lighting.
TECHNICAL SPECIFICATIONS – Manhole sight glass type 325
| Flange material: | Flange: 1.4571 (standard) Other materials: 1.4404, 1.4541, 1.4539, 1.4306 |
| Form: | In accordance with standard DIN EN 1092-1 |
| Seals: | C4400 (Standard), PTFE, FKM, NBR, Silicone, EPDM, Graphite |
| Nominal size: | DN300 to DN800 |
| Temperature / Glass: | Up to 280°C with borosilicate glass similar to DIN 7080 |
| Options: | Wiper SGW with PTFE or silicone wiper blade LED light, for Ex and non-Ex areas FEP or Halar® coating Mica protection disc Special constructions |
