Flow Indicators are used to observe the flow of liquid, powder or gas through pipelines. In many applications the process media require visual inspection at some point in the piping system, sight flow indicators are used in line. L.J. Star supplies different varieties of inline sight glasses that meet the requirements of different industries.

Our indicators meet or exceed pressure and temperature ratings, which vary depending upon the application. Materials of construction used in the sight glass must also be suitable for specific processes, as well as the metals, gaskets, and glass. View options include standard inline and full 360° views.

ANSI flange and NPT type connection visual flow indicators are available in many different materials – carbon steel, stainless steel, hastelloy, monel and those with a Teflon® lining. They are the best design available, made of investment cast bodies with independently bolted retainers to ease any routine maintenance an increase safety.

Hygienic Sight Flow Indicator Products

L.J. Star supplies a variety of sterile designs, ranging from our sanitary flow indicator that utilizes the Metaglas® fused sight window technology, to other hygienic and sterile sight flow products.

L.J. Star offers a full line of visual flow indicator products, replacement parts, and accessories. When it comes to these and other process observation equipment and technologies, we provide peace of mind that safety is the driving factor behind our product line.