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Bel-Art™ SP Scienceware™ Riteflow™ Guarded Flowtubes

Provides additional protection against breakage, especially when used under high pressure

Manufacturer: bel-art™  H404020015

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One flowmeter inserted into a plastic cylindrical guard which has two end bushings, 6.3mm (0.25 in.) NPT fittings and an O.D. of 25.4mm (1 in.)


Gaseous hydrofluoric acid may damage the glass. Products in this grouping may have voltages other than the standard US 110/115V. Please review and confirm your selection before completing your order. Some of these products may not be returned.

Catalog No. 11-163-72M


Description & Specifications


Pressure Rating 200psig
Temperature Rating 65.5°C
Connections 6.3mm NPT

  • 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
  • Maximum operating pressure 200 psig
  • Maximum operating temperature of 65.5°C (150°F)
  • 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

All flowmeters have two floats: one glass and one stainless-steel, except size 5, which has one glass and one Carboloy™ float.