Dwyer Sight Flow Indicator is a Series of sight indicators which display flow or contents of pipelines. Available in window viewing style in the SFI-100 and SFI-300 Series and tube viewing style in the SFI-400 and SFI-700 Series with connection choices of female NPT, BSPP or BSPT threaded and flanged. 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.

Series SFI-100 & SFI-300 Midwest Sight Flow Indicator offers threaded process connections, viewing windows, and bodies of brass or 316 SS. The SFI-100 type has a single window with a rotating impeller, the 300 type has a double window with a rotating impeller. The SFI-350 type has a double window with no moving indicator, and the SFI-360 type has a double window with a flapper.

Dwyer Sight Flow Indicator Features

Manufactured of quality materials and safety tested to assure long, dependable service at economical prices

  • All Series SFI-100, SFI-300 and SFI-300F feature a removable window for easy service and replacement of wearing parts

Application

  • Hydraulic tanks
  • Pressure vessels
  • Coolant tanks
  • Hydraulic lines
  • Oil reservoirs
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Dwyer Sight Flow Indicator Specification

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)
120°F (48°C) on W2 option
170°F (77°C) on I1 option.
Pressure Limit 125 psig (8.62 bar)
150 psig (10.34 bar) on “MP” Models.
Connections Threaded.

Download Data Sheet: Sight Flow Indicator Series SFI-100 & SFI-300 MIDWEST

Ref: dwyer-inst.com