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Bel-Art™ SP Scienceware™ Riteflow™ Unmounted Flowmeters

For corrosive and noncorrosive liquids and gases

Manufacturer: bel-art™  H404030235

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Catalog No. 11-163-72G

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Description & Specifications


Model 150mm Guarded
Pressure Rating 200psi
Temperature Rating 65.5°C
Accuracy ±2%
Float Material Glass and Stainless Steel
Flow Rate Range Glass: 3 to 209.5; Stainless: 19 to 506.3mL/min.
Length (English) 7.5 in.
Length (Metric) 19cm

Useful metering ratios are 10:1 or better. All flowmeters except size 1 may be used with dual float combinations to increase metering to 20:1. Pressure drop is negligible. Flow ranges are linear; low differential pressures are independent of flowrate changes.

  • Heavy-walled borosilicate glass tubes with fused ceramic scales are shock resistant and chemically inert
  • Can be used with almost any corrosive or noncorrosive gas or liquid
  • Choice of flowrate changes
  • Accurate over a wide range of gas and liquid flowrates: from 0.03 to 1812mL/min. for water, and from 2.5 to 60,888mL/min. for air
  • Accurate to within ±2% of full scale, with repeatability of ±0.25% of full scale
  • Calibration charts for air and water are included; charts for other gases and liquids are available from Bel-Art™ on request at no charge

Two types available: plain or guarded. With the guarded model, the flowmeter tube is enclosed in a clear plastic guard tube with two end bushings.