Series SFI-100 & SFI-300 MIDWEST Sight Flow Indicator

Inexpensive Protection for Expensive Equipment and Systems

General Information :

Series 100 and 300 Sight Flow Indicators are manufactured of quality materials and safety tested to assure long, dependable service at economical prices. The 100 and 300 Series offer threaded process connections, viewing windows, and bodies of brass or 316 SS. The 100 type has a single window with a rotating impeller, the 300 type has a double window with a rotating impeller, the 350 type has a double window with no moving indicator, and the 360 type has a double window with a flapper. All the types feature a removable window for easy service and replacement of wearing parts

  • Flow monitoring
  • Flow rate indication
  • Process control

Service: Compatible gases and liquids.
Wetted Materials: Window: tempered glass; Body: bronze or 316 SS; Gasket: Buna-N, fluoroelastomer or PTFE; Indicator: ABS or 316 SS impeller (100 and 300), 304 SS or 316 SS flapper (360).
Temperature Limit: 200°F (93°C).
Pressure Limit: 125 psig (8.62 bar), 150 psig (10.34 bar) on “MP” Models.
Connections: Threaded.


CE, RoHS, cUL, UL.

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