L.J. Star Announces Metaglas® Sight Glass for Chemical and Pharmaceutical Processing
The No. 1 selling sight glass is available for a wide variety of applications
Twinsburg, Ohio – January 20, 2012 — L.J. Star announces that it offers a full line of Metaglas® sight glass products. Made by fusing pure borosilicate glass within a stainless steel ring, the result is prestressed glass with the strength of steel.
Metaglas is the No. 1 selling fused sight glass, installed in more plants around the world than any other brand. A unique combination of metal and glass formulas make Metaglas sight glasses 4.5x stronger than comparable products. The results are superior safety, a wider operating range, and a long, worry-free service life.
Unlike other sight glass designs, Metaglas meets stringent quality standards such as DIN 7079, DIN 7080, ASME BPE, and ASTM E438, and it is approved for USP Type I use.
Metaglas sight glass windows are suitable for general applications and aseptic use, including applications in flange sight ports, circular weld pads, visual flow indicators, threaded ferrule sight ports and sanitary clamps. The metal component is standard as duplex stainless steel but carbon steel and Hastelloy “C” is also available.
These products serve a wide variety of applications: threaded sight glasses in hazardous locations, compression chambers, sight glass illumination, fluid measurement and turbulence in gear housings. Special ANSI bolt-on flanges for flat faced flanges are also available.
Testing has shown the Metaglas sight glass to be safe at pressures far exceeding rated pressure. A video shows a Metaglas sight glass under 20 times normal pressure being struck with a steel projectile. Although the surface is chipped, the sight glass remains leak tight. See extreme pressure test sight-glass video: www.ljstar.com/pubs/45.htm.
In the 1970s, because of the safety risks of conventional sight glass windows, a chemical processor asked longtime glassmaker Herbert’s Industrieglas to develop a safer sight glass. Herbert’s started to experiment with fusing glass to metal. Although this technology was not new, it was primarily done with materials unsuitable for chemical processing. The development received technical, funding, and testing assistance from major chemical companies Hoechst-Celanese, Bayer AG and BASF, who sought a sight glass that would eliminate the risk of failure and worker injury. The answer was a revolutionary sight glass made by fusing borosilicate glass to a stainless steel ring. Named Metaglas because of its incredible strength and safety, it quickly became the leading fused sight glass in the world.
About L.J. Star
L.J. Star Incorporated provides an extensive line of process observation equipment — sight glasses, 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 sight glass, proven in thousands of installations around the world. Unlike some other sight glasses, 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. Website: www.ljstar.com. Video: www.youtube.com/ljstar1.
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