RCM - Differential Pressure Orifice Flow Meter - High Flow Rates

Brand: KOBOLD Instruments, Inc

KOBOLD RCM differential pressure orifice flow meters are designed for industrial flow monitoring and measurement of compatible liquids and gases with a low to medium viscosity and a low solids content. They are also suitable for some steam measurement applications.

The RCM features a rugged and compact metal construction with no moving parts to wear out. This delivers a longer service life, higher reliability, and much less maintenance.

In liquid applications of 6 GPM and higher, pulsation snubbers are incorporated into the connecting pressure passages to produce smooth flow meter operation independent of pipeline turbulence, which ensures the retention of high accuracy for applications with a more challenging flow profile.

The RCM delivers a capable and well-rounded device with high accuracy, a small size, low cost, minimal maintenance, and an increased resistance to accidental damage. 

It is optionally available with a 4–20 mA analog current output for interfacing with remote displays and controllers. 

Limit switches are also available to provide high and low limit signals. In addition, a 0–1000 Hz frequency output is available to drive frequency-based controllers and counters.
  • Compact Design
  • Easy to Install
  • For Horizontal or Vertical Pipes
  • Simple & Rugged Construction
  • Accuracy of ± 3 % Full Scale
  • Rangeability of 6 to 1
  • Flow Rates up to 3000 GPM for Liquid or 20000 SCFM for Gas
  • Low Pressure Drop
  • Optional Alarms and Output Signals



  • ± 3 % Full Scale

Measuring Ranges

  • 0.3-2.0 GPH to 400-3000 GPM
  • 1.5-10 SCFH to 3000-20000 SCFM


  • 1/4” to 3” NPT Thread
  • 1/2” to 8” Wafer

Body Material

  • Bronze
  • Monel
  • Stainless Steel

Media Temperature

  • -30° F to 212° F
  • High-Temp Design: -80° F to 350° F

Maximum Pressure

  • 180 psig
  • High Pressure Design: 400 psig

Media Categories

  • Liquid
  • Gas
  • Steam


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