Model I Slip-On Sight Glass


The Model I Slip-On units have the same operating and safety characteristics as the standard Model I Flange. It can easily be adapted to deeply recessed or unusually sized sight glass connections. Applications requiring DIN standards or non-ANSI flanges are available upon request.

Materials of Construction:

  1. Flange: 316 or 304 Stainless Steel SA-240; Carbon Steel PVQ
  2. Insert: 316 or 304 Stainless Steel SA-351; Carbon Steel SA-519; Hastelloy; Alloy 20; Titanium; Monel; etc.
  3. Compression Ring: 304 Stainless Steel SA-351; Carbon Steel SA-519
  4. Lens: Two-Piece Laminated Tempered Soda Lime (Standard); Tempered or Annealed Borosilicate; Quartz; Lexan; Acrylic; Mica Shields
  5. Lens Cushion Gaskets: Teflon®; Grafoil®; Gylon®; Blue-Gard®; etc.
  6. Lens Packing: Combination Teflon® Impregnated and Viton® (Standard); Graphite; FDA Teflon®; etc.
  7. 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.
Model I Slip-On Sight Glass

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