Threaded Window Sight Flow Indicators

Threaded Window Sight Flow Indicators are labeled with company logo as well as pressure and temperature ratings. Available in NPT threaded-end designs, all Threaded Window Sight Flow Indicators sizes meet ANSI 150# standards.

The windows are screwed into the single-piece cast sight flow body. These sight flow indicators are available with all five styles of Penberthy indication.

The threaded window design is an alternative style that is interchangeable with most applications using ANSI 150# sight flow indicators with bolt-on covers. Instead of unbolting the outer glass covers, these threaded windows are removed for cleaning or replacement with a spanner wrench. The spanner wrenches have a 1/2" drive socket to be used with a torque wrench.

Model

Plain NPT Threaded Window SFI..................STW
NPT Threaded Window SFI (Flapper) ...........STWF
NPT Threaded Window SFI (Rotator)............STWR
NPT Threaded Window SFI (Drip Tube).........STWD
NPT Threaded Window SFI (Gaseous).........STWG

For Threaded Window Sight Flow Indicators, click here