Litre Meter Press Release

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UK flowmeter specialist Litre Meter has shipped highly customised VFF positive displacement flowmeters to a leading flow equipment solutions provider for use in subsea chemical injection applications at a number of sites around the world.

The meters are the result of a partnership programme to develop the VFF rotary piston flowmeter to be used subsea, on a range of chemicals, over a wide range of flows and at high pressure. Litre Meter was able to meet the challenge of producing a robust yet highly accurate meter that can be calibrated at specific viscosities.

The meters were customised to be more compact than a normal VFF meter yet work at 690 bar internal and 345 bar external. Physical vapour deposition (PVD) is used extensively to improve the flow range and longevity of each meter.

The meter forms an integral part of a chemical injection system. It measures the flow rate of chemical application and provides accurate feedback to the system. The meter features a pressure balance chamber based on Litre Meter?s LF15 VFF positive displacement meter. Smaller versions are now available including the LF05 and soon-to-be announced LF03.

PVD coated LF15 VFF flowmeters are suitable for measuring liquids at pressures up to 4,000 bar (60,000 psi) and flow rates from 0.008 l/hr to over 90 l/hr depending on the viscosity of the fluid being measured. They are of intrinsically safe design and manufactured to operate reliably at temperatures ranging from -40 to 100C.

Litre Meter CEO Charles Wemyss said: ?Litre Meter?s VFF flowmeter is ideally suited for use in the oil and gas industry and in particular for low flow/high pressure applications.

?Years of experience in subsea water and chemical injection applications have confirmed the instrument?s capability to reliably measure fluids under extreme conditions of both temperature and pressure.

?Customisation has become more complex than ever as technologies have been developed to provide more sophisticated communications, a wider range of connections and accurate measurements at higher pressures and over wider flow ranges ? down to very low flow rates.

?However, customisation results in cost savings in a variety of applications. It is well worth discussing the available customisation options before seeking to ?make do? with a standard instrument that does not fully meet the needs of the application.?