SM - High Pressure All-Metal Flow Meter and Switch

Brand: KOBOLD Instruments, Inc

KOBOLD SM Series variable area flow meters can be ordered with set-point switches triggering on flow rate.

These flow switches are mounted externally in a protective housing and are actuated by a magnet within the float. This same magnet can also be used to couple to an external flow indicator, allowing reading of flow rate without requiring visibility of the float.

This allows the rotameter to benefit from all the advantages inherent in using an all-metal construction, including high pressure and shock resistance.

SM Series flow meters and flow switches are designed to handle flow rates up to 120% of their stated maximum flow range without damage. At excessive flow rates the device, however, will induce a larger pressure drop.
  • ± 5% Full Scale Accuracy
  • Maximum Pressure - 3600 PSI / 5000 PSI
  • Direct Reading Scales for Water and Air @ STP
  • Small, Compact Design
  • Easy to Install
  • Vertical and Horizontal Flows
  • Certifications/Approvals: cCSAus
  • Made in the USA
  • Quick Delivery


Switching Range

  • 0.04-0.6 to 4-40 GPM
  • 0.2-1 to 5-130 SCFM


  • 1/4” to 1-1/4” NPT Threads

Body Material

  • Brass
  • Stainless Steel

Maximum Pressure

  • Brass: 3600 psig
  • Stainless Steel: 5000 psig

Maximum Temperature

  • PP Float: 160° F
  • Brass/SS Float: 212° F


  • ± 5 % Full Scale

Media Categories

  • Liquid
  • Gas


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