360° FULL VIEW FLANGED CYLINDRICAL SIGHT FLOW INDICATOR MODELS 300, 325

socket or butt weld dual window sight flow indicators

The Chem Flowtronics Models 300 & 325 flanged 360° tubular sight flow indicators have a expanded ID borosilicate glass tube. This large ID allows for observations and settlement of process fluids. The standard models are available in 316LSS or Cast Iron wetted surfaces. Models come equipped with PTFE gaskets, and the carbon steel sight flow has cad plated hardware.



The Chem Flowtronics Models 300 & 325 flanged 360° tubular sight flow indicators have a expanded ID borosilicate glass tube. This large ID allows for observations and settlement of process fluids. The standard models are available in 316LSS or Cast Iron wetted surfaces. Models come equipped with PTFE gaskets, and the carbon steel sight flow has cad plated hardware. Model 325 offers all the same features as the 300 series, along with a steel shield, which can be carbon steel, or stainless steel. Two large view ports provide safe visual confirmation of process fluids while shielding the view tube from harsh environments. For other full view models please click here.

  • Largest Viewing Area in the Industry
  • 150# Bolt Circle
  • PTFE Gaskets Standard
  • Borosilicate Glass Standard
  • Temperature rating with PTFE gaskets: 400°F
  • Lengths to 48"+
  • Flush mounted flanges
  • Female threaded ends
  • Sight Tube graduated for volume measurement
  • Pipe diameter to 24"
  • Polycarbonate safety shielding (see Model 350)
  • Polycarbonate Sight Tube
  • Sanitary tri-clamp ends (see Model 1150)
  • Viton or Neoprene gasketing

Additional information/drawings are available in the PDF brochure.


360° full view flanged cylindrical sight flow indicator models 300, 325