Model 322A is shipped pre-assembled from the factory and can be bolted directly to the flange in accordance with ASME B16.5.
The 322A model is constructed from high-quality 1.4571 (316Ti) stainless steel, which is highly valued by our customers. The glass material used is industry-proven borosilicate glass 3.3, in accordance with DIN 7080 (or equivalent).
If the process conditions pose a problem even for highly resistant borosilicate glass, a specially adapted mica or FEP protective screen for the connection provides additional protection against steam and aggressive chemicals, such as alkali, up to a pH value of 14.
TECHNICAL SPECIFICATIONS – Circular sight glass type 322A
| Flange Material: | Base Flange: 1.4571 (standard) Cover Flange: 1.4571 (standard) Other materials: 1.4404, 1.4541, 1.4539, 1.4462, 2.4602 |
| Shape: | In accordance with DIN 28121 |
| Seals: | Graphite |
| Nominal Size: | 1½“ to 4” |
| Temperature / Glass: | Up to 280°C with borosilicate glass conforming to or similar to DIN 7080 |
| Options: | LED light, for Ex and non-Ex areas Spraying device SVII FEP or Halar® coating Mica protection disc Special constructions |
