HIGH PRESSURE 360° FULL VIEW SIGHT FLOW INDICATORS ANSI RATED MODEL 375

socket or butt weld dual window sight flow indicators

The model 375 is Chem Flowtronics answer to today's technological requirements in the field of sight verification equipment. Our latest Model "375" is Stainless Steel tough, manufactured in 316L SS ends with SS hardware and fasteners. The heart of the unit, is our glass "borosilicate" cylinder, manufactured of extra heavy wall borosilicate glass capable of pressures not usually associated with tubular sight flow designs. Standard with every unit is a Polycarbonate Shield to protect the glass from both external forces, and other equipment from internal forces. We offer this design with a variety of wetted surfaces, or linings.



The model 375 is Chem Flowtronics answer to today's technological requirements in the field of sight verification equipment. Our latest Model "375" is Stainless Steel tough, manufactured in 316L SS ends with SS hardware and fasteners. The heart of the unit, is our glass "borosilicate" cylinder, manufactured of extra heavy wall borosilicate glass capable of pressures not usually associated with tubular sight flow designs. Standard with every unit is a Polycarbonate Shield to protect the glass from both external forces, and other equipment from internal forces. We offer this design with a variety of wetted surfaces, or linings. The 316L SS end flanges can be lined with PTFE, TEFZEL or ETFE. The flanges can be manufactured in different alloys C-22, C-276, Inconel or Titanium, to name a few. Our unique "Flex compression Rods" allows the unit to adjust to variations in your piping systems, such as temperatures, mechanical loads, and pressure fluctuations.

  • 316L SS wetted components with SS hardware
  • Pressure Rating: 150psig @ 350 degrees F and ANSI Tested to 225 psig
  • Vacuum Rating: Full Vacuum
  • 100% Hydro/Bubble Test
  • Heavy Duty Stainless Construction
  • Special Heavy Wall - High Pressure Borosilicate Glass View Tube
  • Shield Construction: Full Polycarbonate Shield
  • Standard sizes: 1", 1-1/2", 2" & 3" - consult factory for availability of other sizes
  • Standard Face to Face: 8", consult factory for other lengths
  • Materials of Construction:
  • C22, C276, Inconel, Titanium & Other Alloys
  • End Flange Lining for all wetted surfaces
  • PTFE, ETFE & TEFZEL
  • Special lengths
  • Instrumentation ports
  • Standard Face to Face 8"
  • Material of Construction: Stainless Steel
  • Glass: Borosilicate
  • Operating pressure & temperature: 150 PSIG @ 350 F
  • Vacuum Rating: Full Vacuum
  • Shield Construction: Polycarbonate

Additional information/drawings are available in the PDF brochure.


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