King Instrument 7420 Series Rotameter

Chemical resistant and economical borosilicate glass variable area meter with polycarbonate housing.

Features

  • Maximum water flow rate: .48 to 7.4 GPM
  • Maximum air flow rate: 2 to 20 SCFM
  • Accuracy: ±5% of full scale (75 mm tube); ±3% of full scale (150 mm tube)
  • 10:1 to 12.5: 1 turndown
  • .5% repeatability
  • 150°F max temperature
  • 150 psig max pressure

The King Instrument 7420 Series Rotameter is an in-line variable area flow meter ideal for chemical processes. The King Instrument 7420 meter is available with either PVDF or 316L stainless steel fittings and Hastelloy® C-276 or 316L stainless steel internals. This, combined with borosilicate glass metering tubes, makes the King Instrument 7420 Series Rotameters both chemical-resistant and economical.

The King Instrument 7420 Series Rotameter is available in a 3" (75mm) or 6" (150mm) direct reading scale. The King Instrument 7420 meters have a 10:1 to 12.5:1 turndown ratio with a maximum flow range of 0.48 to 7.4 GPM for water and 2 to 20 SCFM for air. The 75mm tube has ±5% of full scale accuracy and the 150mm tube has ±3% of full scale accuracy.