Model A Flange Sight Glass

Description:

The Model A Flange unit mounts on standard ANSI B16.5 (2" to 8") flange accommodations, and can be manufactured to meet a wide range of pressure and temperature requirements. The lens and packing are contained by a retainer ring on the process side of the flange. Different materials of construction are available to meet your process needs. Applications requiring DIN standards or non-ANSI flanges are available upon request.

Materials of Construction:

1. Flange: 316 or 304 Stainless Steel SA-182; Carbon Steel SA-105
2. Compression Ring: 304 Stainless Steel SA-351; Carbon Steel SA-519
3. Snap Ring: 304 Stainless Steel SA-351; Carbon Steel SA-519
4. Retainer Ring: 316 or 304 Stainless Steel SA-351; Carbon Steel SA-519
5. Lens: Two-Piece Laminated Tempered Soda Lime (Standard); Tempered or Annealed Borosilicate; Quartz; Lexan; Acrylic; Mica Shields
6. Lens Cushion Gaskets: Teflon®; Grafoil®; Gylon®; Blue-Gard®; etc.
7. Lens Packing: Combination Teflon® Impregnated and Viton®
   (Standard); Graphite; FDA Teflon®; etc.
8. Compression Screws: 18-8 Stainless Steel; Carbon Steel SA-193

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. * FM Approval Excludes 600psi models