Teflon® Lined Safesite Sight Flow Indicator


The Teflon® Lined Safesite utilizes two Model I or Model L Flanges units with Teflon inserts or seals (depending on pressure) that are bolted to a Teflon® Lined Cross. The Teflon® Lined unit employs standard 150 psi ANSI B16.5 (1 1/2" thru 8") flanged end connections. All wetted parts of the unit are made of Teflon®. The Teflon® Lined unit is rated for temperatures up to 450ºF. Please refer to the Model I Flange with Teflon® insert or Model L Flange for more information about the sight glass components.

Materials of Construction:

  1. Short Stack Cross: Teflon® Lined Ductile Iron; Stainless Steel; Carbon Steel
  2. Flanges: 316 or 304 Stainless Steel SA-182; Carbon Steel SA-105
  3. Inserts: Teflon® (Standard); Stainless Steel; Glass Lined; Hastelloy; Inconel; Alloy 20; Titanium; etc.
  4. Compression Rings: 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
  6. Lens Cushion Gasket: Teflon®
  7. Lens Packing or Seals: Teflon®
  8. Compression Screws: 18-8 Stainless Steel; Carbon Steel SA-193
  9. Studs and Nuts: 18-8 Stainless Steel; Carbon Steel; etc.

TV SDFactory Mutual Approved
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.

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