The Penberthy SeriesSTWR Sight flow Indicator is designed to operate well in a range of liquid applications. A ROTATOR sight flow indicator can be used in a fluid application where there is a great enough flow to spin the Teflon rotator paddle wheels. A spinning motion indicates variation in flow, ideal for darker color solutions where color contrast is better, translucent liquids and clear solutions. Any orientation of flow can be observed. The STWR has a slender body with easy access windows and is a popular alternative to the traditional sight flow indicators. The STWR series sight flow has threaded NPTF connections and is ANSI 150 pound rated. The STWR threaded window sight flow is labeled with company logo as well as pressure and temperature ratings. A spanner wrench is required for removing the windows (see below).
Neoprene® is the standard gasket material for Iron, Bronze and Carbon Steel bodies. The maximum temperature rating for Neoprene® is 300ºF.
This Penberthy sight Flow is 1-1/2 inch NPT and made of CAST IRON.
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