PTFE-Lined Sight Flow Indicator serves in harsh applications.

Press Release Summary:

Coated to handle corrosive chemicals, PTFE lined sight flow indicator provides clear view of corrosive chemical processes at temperatures to 500°F. Flanged unit, with window as sole exception, has PTFE PFA lining that covers all surfaces subject to chemical exposure. For demanding applications, shields made of FEP®, KEL-F®, or mica are also available to protect sight glass. Available in 7 sizes from 1-8 in., models come in 150 or 300 psi versions with drip tube or flutter flow indicators.

Original Press Release:

L.J. Star Releases Teflon® Lined Sight Flow Indicator for Harsh Chemical Applications

New flow indicator is protected by corrosive-resistant Teflon PFA lining

TWINSBURG, Ohio -- L.J. Star has expanded its line of flow indicators to include a product that is specially coated to handle a wide variety of common corrosive chemicals. The new Teflon Lined Sight Flow Indicator withstands harsh chemicals and solvents known to react with metal and quickly break down standard.

These new flanged units provide a clear view of highly corrosive chemical processes even at high pressures, and at temperatures up to 500 degrees F. With the exception of the window, the Teflon PFA lining covers all chemically-exposed surfaces of the sight flow indicator. For exceptionally demanding applications, shields made of FEP®, KEL-F® or mica are also available to protect the sight glass. For vacuum service, clear PFA can be bonded to the window to eliminate separation of the shield and glass.

The Teflon-lined sight flow indicators are available in seven sizes, ranging from 1 to 8 inches. Customers may choose from 150 PSI or 300 PSI versions, and models that incorporate drip tube or flutter flow indicators. Most models feature ultra-sturdy investment cast bodies fitted with independently bolted glass retainers, depending on size. For added safety, view-through units are available with Metaglas® lenses.

To learn more about L.J. Star's full line of flow indicator products, visit:

About L.J. Star

L.J. Star Incorporated provides an extensive line of process observation equipment -- sightglasses, lights, sanitary fittings, and level gage instrumentation. Product lines include Metaglas® Safety Sight Windows, Lumiglas® Explosion Proof Lights and Cameras, Visual Flow Indicators, Sight Ports, Sanitary Clamps, Magnetic Level Gages and Gage Glass. Metaglas is the #1 selling fused sightglass, proven in thousands of installations around the world. Unlike some other sightglasses, it meets stringent DIN 7079 and DIN 7080 quality standards, and it is approved for USP Type I use. For additional information, or to request third-party documentation of standards compliance and product performance claims, contact L.J. Star Incorporated, P.O. Box 1116, Twinsburg, OH 44087. Phone: 330-405-3040. Fax: 330-405-3070. Email: Website:

Download a high resolution photo at:

Teflon®, FEP®, and KEL-F® are registered trademarks of DuPont.

Contact: Suzanne Horrigan
P.O. Box 1116
Twinsburg, OH 44087
Phone: 330-405-3040

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