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Series SFI-100/300/350/360/400/700
MIDWEST Sight Flow Indicators
Inexpensive Protection for Expensive Equipment and Systems
 
100 & 300 SERIES
Window Style with Threaded Connections
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.

300F SERIES
Window Style with Flanged Connections
Service: Compatible gases and liquids.
Wetted Materials: Window: Tempered Glass; Body: Carbon steel or 316 SS; Gasket: Buna-N, Fluoroelastomer or PTFE; Indicator: 316 SS flapper (360).
Temperature Limit: 200°F (93°C).
Pressure Limit: 150 psig (10.34 bar).
Connections: Flanged.

400 SERIES
Tube Style with Threaded or Flanged Connections
Service: Compatible gases and liquids.
Wetted Materials: Tube: Borosilicate; Body: Cast Iron or 316 SS; Gasket: PTFE.
Temperature Limit: 200°F (93°C).
Pressure Limit: 50 psig (3.45 bar).
Connections: Threaded or flanged.

700 SERIES
Tube Style with Threaded Connections
Service: Compatible gases and liquids.
Wetted Materials: Tube: Tempered Borosilicate; Body: Brass or 316 SS; Gasket: Fluoroelastomer; Indicator: Acetal.
Temperature Limit: 212°F (100°C).
Pressure Limit: 230 psig (15.86).
Connections: Threaded.