OPW Engineered Systems Datasheets for Sight Flow Indicators

Sight flow indicators provide a quick, reliable and economical way to verify the flow of fluids through industrial process lines.
Sight Flow Indicators: Learn more

Product Name Notes
OPW has been manufacturing sight flow indicators for over 60 years. Our experience has led to many innovations in design and manufacturing, making VISI-FLO® the most thoroughly-engineere d Sight Flow...
OPW's 1600 Series Sight Flow Indicators are manufactured of quality materials and safety tested to assure long, dependable service at economical prices. Good for monitoring critical fluid flow, lubricant, coolant...