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King Instruments 7710 Series Rotameter

  • Accuracy, Versatility and Value
  • All 316L Stainless Steel Construction
  • Flow transmitter and flow switch option
  • Dial Type Display with 120mm Dual Scale

The King 7710 series is an all 316L stainless steel flow meter. It has an internal float and tapered tube design allowing it to offer longer, more linear scales as well as better pointer stability.

The flow metering tube, internal components, fittings and fitting material are all made from 316L stainless steel.

Fittings are available with NPT connections or direct flange mount for vertical connections.

The indicator housing is 304 stainless steel. NPT connections are available from ½” to 2” with 3” and 4” meters being offered with flanged connections.

O-Rings are available in EPR, Buna-N, Viton® or Kalrez®.

All models have a 10:1 turndown with excellent repeatability at 0.5% and accuracy of ± 3% of full scale flow.

Maximum temperatures on the King flow meter are available up to 204°C with maximum operating pressures available up to 103 Bar.

Liquid models are available with full scale flows from 2 litres per minute to 1700 LPM.

Gas models are available with full scale flows from 4 standard cubic feet per minute to 100 SCFM.Scales are available in any volumetric unit.

Single or dual inductive slot sensor (NAMUR) alarm outputs are also available.

A 4 – 20 mA flow transmitter option is available as well on the 7710 series flowmeter by King.

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Data sheets and manuals

Model numbers

  • K.7711210706
  • K.7711210708
  • K.7711210722
  • K.771121A724
  • K.771121A726
  • K.771121T708
  • K.7711220714
  • K.7711220722
  • K.7711230710
  • K.7711230711
  • K.7711230712
  • K.7711230716
  • K.7711230717
  • k.7711230722
  • K.771123A711
  • K.7711240707
  • K.7711240709
  • K.7711240712


The King Instruments 7710 Series Rotameter is widely used in the following industries:


King Instrument Company