All standard flanged models in the L.J. Star Incorporated line of visual flow indicators carry full ANSI rating1 and are available in several application-specific configurations. ANSI designed for 150# or 300# service, flanged units are available in sizes from 1/2” to 8”.
Standard Industrial Sight Flow Indicator (View-Through)
![SFI](https://www.tankcomponents.com/wp-content/uploads/2021/06/SFI_.jpg.webp)