King Instruments 7510 and 7511 Series Rotameter

The King 7510 and 7511 series are a low cost and economical acrylic tube variable area flow meter offering a direct reading flow scale. Scales have a white screen printed back for easier readability.

Material and Construction

All internal components are 316L stainless steel with a standing fitting material of PVC with 316L stainless steel and brass an option. Fittings are available in female NPT with a vertical connection.

O-Ring and Fitting options

EPR O-Rings are standard with an option of Buna N or Viton®.

Flow Scale Sizes

Flow scales are available in fives sizes with a choice of 50mm, 65mm, 100mm, 127mm and 250mm.

Accuracy and Repeatability

All models have a 10:1 turndown ratio with accuracy varying from ± 2% to ± 6% of full scale flow dependant on flow scale size.

Repeatability also varies by flow scale size, from 0.5% to 3%.

Temperature and Pressure

Maximum temperatures are up to 54°C for liquid models and 38°C for gas models. Operating pressures available up to 8.6 bar.

Flow capacities for Liquid and Gas models

Liquid models are available with full scale flows from 0.45 litres per minute to 76 LPM.

Gas models are available with full scale flows from 2.6 standard cubic feet per hour to 60 SCFM.

Scales are available in any volumetric unit.