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Precision Turbine Flowmeters – Liquid

Read "Determining Factors for Turbine Flowmeter Bearing Life"

COX has remained the flowmeter of preference world wide for over 50 years, providing dependable data over wide flow ranges. Calibration labs agree, that COX is one of the most linear and repeatable flowmeters on the market. Being specified in numerous government and aerospace applications, is a tribute to the endurance and performance of COX turbine flowmeters. The design characteristics – such as helical rotors, an extended leading flow straightener and a press fit rear support – result in reliable and repeatable flow measurements. These strengths are complemented by the signal conditioning and flow computers offered by COX Instruments. Ceramic bearing for turbine meters

COX customers can now upgrade their turbine flowmeter to ceramic ball bearings when submitting their meter for recalibration. These rugged bearings are superior to standard 440C stainless steel and journal bearings in terms of wear resistance, and are less susceptible to fluid particulates. They are ideal for water and cryogenic applications, which have little to no lubricating properties.

In a wide range of applications, turbine flowmeter users must select the proper bearing material for both fluid lubricity and process temperature to ensure long-term reliability. Water applications, in particularly, may require high-friction journal bearings, which can shorten the meter's linear flow range of operation. Ceramic ball bearings, on the other hand, have a low coefficient of friction and exhibit excellent wear-resistant characteristics. They are also an excellent choice for high-temperature applications, with temperature limits of 425°C (800°F).

COX flowmeters offer:

  • Wide linear ranges, and when coupled with a flow computer, will measure accurately over the entire extended repeatable range.
  • Calibrations in various fluids and viscosity blends.
  • Universal Viscosity Curves for extended temperature environments.
  • Non-corrosive stainless steel wetted parts.
  • Various end fittings – AN, NPT, Flanges – including specials to meet your piping requirements.
  • Manifold systems, for extend flow range coverage.
  • A complete line of ancillary electronic signal conditioners and flow computers.

COX precision flowmeters are now delivered in 4 weeks, or less – with an expedited delivery of 2 weeks, or less. Our Application Engineers are available to assist you in selecting the proper system configuration and calibration for your fluid measurement requirement.

Flowmeter Product Literature


COX Instruments
15555 N 79th Place • Scottsdale, AZ  85260
tel: (480) 922-7446 • fax: (480) 948-3610
sales@cox-instruments.com