Oblong Sight Glass units are used where increase the viewing lengths beyond that of standard sight glasses are required.
Our oblong units are designed for pressures up to 150psi and temperatures up to 450°F, and various materials of construction are available to meet your process needs.
| Materials |
| Body: |
316 or 304 Stainless Steel SA-240; Carbon Steel PVQ |
| Weld: |
316 or 304 Stainless Steel SA-182; Carbon Steel SA-105 |
| Retainer Cap: |
316 or 304 Stainless Steel SA-240; Carbon Steel PVQ |
| Lens: |
Tempered Soda Lime (Standard); Tempered Borosilicate; Lexan; Acrylic |
| Lens Cushion Gaskets: |
TeflonⓇ GrafoilⓇ GylonⓇ Blue-GardⓇ etc. |
| O-Rings or Packing: |
VitonⓇ TeflonⓇ Graphite; FDA TeflonⓇ Buna-N, etc. |
| Cap Screws: |
18-8 Stainless Steel; Carbon Steel SA-193* |
| Set Screws: |
18-8 Stainless Steel; Carbon Steel SA-193* |
*By request only
This sight glass has been certified as maintaining a Quality Assurance System in accordance with the Pressure Equipment Directive 97/23/EC (PED) Annex I, Paragraph 4.3 by the Certification Body 0036 of the TÜV Industrie Service GmbH.
