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Ultrasonic Flow Meters

Our range of rental FLEXIM clamp-on ultrasonic flow meters can measure both liquid and gas to provide velocity, energy, mass and volumetric data. Users are becoming more aware of the advantages of ultrasonic clamp-on flow meters. Technical improvements in transit time meters have enabled them to handle a wider range of fluids, with increased accuracy.

The range of FLEXIM flow meters allow for measurement in the following applications:

  • Liquid
  • Gas
  • Water
  • Steam
  • Thermal energy
  • Compressed air

JWF have partnered with Flexim, leading technology experts, in the ultrasonic flow meter marketplace for both spool piece meters (inline/wetted) and non-invasive clamp-on flow meters. We offer Flexim's FLUXUS range of permanent and portable ultrasonic clamp-on flow meters measuring liquids and gases.

The flow meters can be carried out on the following:

  • Pipe sizes from 10mm – 3000mm diameter
  • No limitations on wall thickness or pipe material
  • From extremely low to very high velocities
  • Hazardous areas up to 400°C (ATEX Zone 2 / FM Class I, Division 2 certified)

Our Flexim portable ultrasonic clamp-on flow meters are also available for hire.

Image: FLUXUS F/G608
FLUXUS F/G608
Image: Flexim portable ultrasonic flow meter
Flexim portable ultrasonic flow meter

Product Videos

Product Range

FLUXUS F/G601 - portable flow meter for liquid or gas

FLUXUS F/G601 - portable flow meter for liquid or gas

 The FLUXUS F/G601 is the portable clamp-on flow meter measuring liquid or gas.


FLUXUS F/G608 - portable flow meter for hazardous areas

FLUXUS F/G608 - portable flow meter for hazardous areas

The FLUXUS F/G608 portable flow meter for liquids or gas is based on the widely used, highly reliable and versatile F/G601, but has been specifically engineered for its use within hazardous areas and is covered by an ATEX, IECEx and FM certification.


FLUXUS G601 ST - portable flow meter for steam

FLUXUS G601 ST - portable flow meter for steam

The FLUXUS G601 ST is the portable steam flow meter which allows you to carry out measurements in multiple pipe locations throughout your site.


FLUXUS F401 - portable flow meter for water

FLUXUS F401 - portable flow meter for water

The FLUXUS F401 is a heavy duty portable ultrasonic flow meter ideal flow meter for long-term measurement surveys for water, waste water and sewage sites.


FLUXUS F/G721 - fixed flow meter for liquid or gas

FLUXUS F/G721 - fixed flow meter for liquid or gas

The FLUXUS F/G721 is a technological breakthrough in the ultrasonic clamp-on volume and mass flow measurement of liquid or gas. The flow meter can be used in hazardous and highly corrosive environments (ATEX, IECEx Zone 2 and FMc Class I, Div. 2 certified).


FLUXUS F/G809 - fixed flow meter for hazardous areas

FLUXUS F/G809 - fixed flow meter for hazardous areas

The FLUXUS F/G809 is FLEXIM's dual channel ultrasonic clamp-on flow meter for bi-directional flow measurement of liquid or gas in hazardous areas (FM Class I, Div. 1 and ATEX, IECEx Zone 1 approved).


FLUXUS F801 - fixed flow meter for liquid offshore

FLUXUS F801 - fixed flow meter for liquid offshore

The FLUXUS F/G801 is the fixed ultrasonic flow meter for offshore to measure liquid.


FLUXUS G721 ST - fixed flow meter for steam

FLUXUS G721 ST - fixed flow meter for steam

The FLUXUS G721 ST is the fixed steam flow meter and offers a variety of digital communication interfaces such as Profibus, Modbus RTU, TCP and others.


FLUXUS WD - Fixed flow meter for water

FLUXUS WD - Fixed flow meter for water

The FLUXUS WD Series non-invasive ultrasonic flow meter is the ideal solution for the water industry (50mm-6500mm).


FLUXUS XLF - fixed flow meter for low flow

FLUXUS XLF - fixed flow meter for low flow

FLUXUS XLF is Flexim‘s non-invasive metering system for the reproducible and long term reliable measurement of extremely low flow rates (3l/h, 10mm – 50mm pipe sizes).


PIOX Range - concentration, density and mass flow measurement

PIOX Range - concentration, density and mass flow measurement

Inline process refractometers for concentration analysis used in various industries such as chemical, pharmaceutical, beverage.