RBCS Clamp-On Ultrasonic Flow Meter Compatibility & Limits FAQ

 Q1: What pipe materials are compatible with the RBCS Clamp-On Ultrasonic Flow Sensor?

Clamp-On Ultrasonic Flow Meter
ipe Material FAQ | RBCS Series |
R&B Instrument

A: The RBCS Series is optimized for high-purity plastic tubing commonly used in cleanrooms—including PFA, PTFE, PVDF, and Nylon—as well as homogeneous metal pipes like 316L stainless steel and copper. It covers pipe outer diameters from 1/4''(6.35mm) up to 60.3mm.

Q2: What are the main physical limitations of non-contact clamp-on ultrasonic measurement?

A: Clamp-on measurement can be limited by three main factors:

  1. Pipe Wall Condition: Multi-layer lined pipes with air gaps, porous cast iron, or heavily corroded walls scatter acoustic signals.

  2. Fluid Composition: High concentrations of entrained air bubbles or dense suspended micro-particles absorb ultrasonic waves.

  3. Pipe Fill: The pipeline must remain fully filled (100%) without air pockets or half-empty gravity flow.

Q3: What alternative R&B flowmeter should be chosen if clamp-on installation is not suitable?

A: If clamp-on installation is restricted:

  • For unobstructed straight-through lines with no pressure drop, select the RBTPD (with 1.3" OLED display) or RBTPK (OEM inline) series.

  • For high-pressure liquid cooling or stainless steel loops, select the RBTAD Series with sanitary tri-clamp fittings.

  • For micro-dosing and additive tracking down to 1mL/min, specify the RBTGU Series.

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