If corrosion resistance is only needed on wetted parts of a sight glass, our Model I Flange sight glass unit
is an ideal choice for the application.
The Model I's insert can be made from a wide variety of materials (stainless steel, glass-lined, or Hastelloy, etc) to ensure compatibility with any process fluid, while the main unit body can be made of carbon steel (or any material your application requires). The unit mounts on a standard ANSI B16.5 (2" to 24") flange. As with all PPC products, the Model I Flange can be made to meet any pressure and temperature requirements.
||Carbon Steel SA-105 (Standard); 316 or 304 Stainless Steel SA-182
||316 or 304 Stainless Steel SA-351; Carbon Steel SA-519; Glassed Lined; Hastelloy; Inconel; Titanium; Monel; Alloy 20; etc.
||304 Stainless Steel SA-351; Carbon Steel SA-519
||Two-Piece Laminated Tempered Soda Lime (Standard); Tempered or Annealed Borosilicate; Quartz; Lexan; Acrylic; Mica Shields
|Lens Cushion Gaskets:
||Teflon®; Grafoil®; Gylon®; Blue-Gard®; etc.
||Combination Teflon® Impregnated and Viton® (Standard); Graphite; FDA Teflon®; etc.
||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.