Visual Sight Flow Indicators


The MPC Model 202 sight flow indicator (SFI) is an inexpensive, compact device used to visually detect flow, color, and relative movement of liquid. A few of the most common applications for the SFI include the monitoring of cooling water to welding and die casting machines.

This low-cost indicator uses the flow of liquid to agitate multi-colored balls in a clear Lexan® dome. The solid brass alloy body is designed to be easily installed in the pipe line or to be panel mounted for observing multi-line applications. The MPC SFI operates in all planes and positions, vertical and horizontal, providing visibility from virtually any angle.

  •  five sizes from 1/4″ to 1″ npt
  • solid brass alloy body
  • clear, tough Lexan® liner and dome
  • chemically resistant Buna-N seals
  • self-cleaning ball action
  • compact size
  • easy installation
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