The type 337 is constructed from high-quality 1.4571 (316Ti) stainless steel, a material highly valued by our customers. Like most of our displays, the Model 337 is also available in a variety of other materials upon request.
The seal is achieved using flat gaskets tailored to your requirements. We supply C-4400 fibre, PTFE, NBR and graphite gaskets, amongst others, as standard.
For dark liquids or unlit tanks, the use of a reflective sight glass in accordance with DIN 7081 or similar is recommended. Due to the refraction of light in the built-in prisms, the liquid level can be more easily identified. However, if the tank is lit or if the colour of the product is visible, a transparent sight glass should be used. Reflective glass must not be covered with mica discs, as this prevents reflection.
TECHNICAL SPECIFICATIONS – Longitudinal sight glass type 337
| Flange Material: | Base Flange: 1.4571 (standard) Cover Flange: 1.4571 (standard) Other materials on request |
| Shape: | Longitudinal oval |
| Gaskets: | KlingerSil® C4400 PTFE, FKM, NBR, Silicone, EPDM Graphite |
| Total length: | 176 to 536 mm |
| Temperature / Glass: | Up to 243°C with borosilicate glass complying with or similar to DIN 7081 (with saturated steam or hot water pressure) Up to 280°C with borosilicate glass complying with or similar to DIN 7081 (without pressure) |
| Optionals: | Mica protection Special designs available on request |
