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Industrial Sight Flow Indicators allow you to observe the flow of process gases and fluids such as chemicals, cooling water, foods and beverages, and petroleum-based products through a process line. Suitable for high pressure and high temperatures. Indicator choices include a rotor, flapper or drip-tube. Standard view or full view (360°).

Standard Industrial Sight Flow Indicator (View-Through), Flanged Mount
Designed with two opposing windows that are gasketed and mounted with bolted retainers.
  • Mounting: Flange connection
  • 150 or 300 PSI full ANSI classes
  • Up to 500° F, higher temperatures available
  • Full ANSI rated
  • Indicator options: Rotor, flapper, drip-tube or plain
  • Sizes: 1/2 to 8 inches, larger sizes available
  • LJ Star offers NACE compliant sight flow indicators.
Standard Industrial Sight Flow Indicator (View-Through), Threaded Mount
Designed with two opposing windows that are gasketed and mounted with bolted retainers.
  • Mounting: FNPT connection (socket weld also available)
  • 150 or 300 full PSI ANSI classes
  • Up to 500° F, higher temperatures available
  • Full ANSI rated
  • Indicator options: Rotor, flapper, drip-tube or plain
  • Sizes: 1/2 to 2 inches
  • LJ Star offers NACE compliant sight flow indicators.
Full View Industrial Sight Flow Indicator (360° View), Flanged Mount
Use where close observation of process fluid characteristics is desired.
  • Mounting: Flange connection
  • 150 psi ANSI size
  • Up to 500° F.
  • 70 to 150 psi (depending on size)
  • Indicator: Drip or ball
  • Sizes: 1/2 to 4 inches
  • LJ Star offers NACE compliant sight flow indicators.
Full View Industrial Sight Flow Indicator (360° View), Threaded Mount
Use where close observation of process fluid characteristics is desired.
  • Mounting: FNPT Connection (socket weld also available)
  • Up to 500° F.
  • 100 to 150 psi (depending on size)
  • Indicator: Ball
  • Sizes: 1/4 to 2 inches
  • LJ Star offers NACE compliant sight flow indicators.
Teflon-Lined Industrial Sight Flow Indicator For Corrosive Chemicals
For caustic, erosive, and harsh process media. Standard sight flow indicator has two opposing windows that are gasketed and mounted with bolted retainers.
  • Mounting: Flange
  • 150 or 300 psiI ANSI classes
  • Up to 500° F.
  • Full ANSI rated
  • Indicator: Drip tube or flutter
  • Sizes: 1/2 to 8 inches
  • LJ Star offers NACE compliant sight flow indicators.
Heating Jackets Accessories
An accessory for standard (view through) sight flow indicators. Steam prevents cool spots in the process line while allowing observation.
  • LJ Star offers NACE compliant sight flow indicators.
LJ Star
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