SMARTFLOW® High Temperature Low Flow Indicators

Item #: HLFI3-A-40


SMARTFLOW® High Temperature Low Flow Indicators are designed to show the presence of flow in extremely low flow applications. They are ideal for use in critical injection mold cooling circuits using bubblers or baffles where flow is restricted and effective cooling is essential and are specifically for use with pressurized hot water cooling systems.


  • Stainless steel body with high temperature glass viewing window
  • 3/8″ NPT (f) inlet size
  • 0.08 – 1 GPM (0.3 – 4 LPM) flow range
  • 250 PSI (17.2 bar) pressure rating satisfies most pressurized water system requirements allowing for installation into many different cooling applications
  • Maximum temperature 400° F (204° C) allows for installation into high temperature applications
  • Compact size works well in restricted-space locations
  • Bi-Directional flow indicator works with flow from either direction
  • Combine with High Temperature Flow Regulator for precise flow control (requires Reducing Hex Nipple 1/2″x3/8″)

Additional information

Weight 1.8 lbs

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