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Filton Process Control is offering insertion turbine flowmeters for applications where installation and removal from the pipeline, without interrupting flow, is more important than extreme accuracy.

The Series 5000 flowmeters are said to be simple to install and remove and are suitable for large pipelines, where the cost of inline meters can be prohibitive.

These low-cost flowmeters can be installed and removed through a suitable valve while the flow line continues to remain under pressure.

They provide a wide range and improved linearity, according to the company.

As fluid flows through the turbine assembly, it causes the blades of a freely supported rotor to turn at a speed directly proportional to the flow velocity.

A pick-up assembly fitted into the insertion stem immediately above the rotor detects the passage of each blade tip and generates a sine-wave output, the frequency of which is proportional to the turbine rotor speed and hence the velocity and flow rate.

This signal may then be used in conjunction with local or remote signal conditioning electronics, which are also available.

The flowmeters can be fitted with different, interchangeable rotor assemblies and are available with a range of electronic signal conditioning and readout instruments.

Readout equipment can be locally mounted or remotely when a preamplifier is used and distances up to 3,000m can be accommodated.

When used in conjunction with a ball valve, the metering head retracts fully into the housing so they can be removed without interrupting fluid flow.

The Series 5000 flowmeters are suitable for pipeline diameters from 4in (10cm) upwards and meet most installation requirements for oil, gas and general industrial flow-metering operations.

Filton Process Control Engineering

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