Litre Meter provides customized chemical flowmeters for subsea


Litre Meter provides customized chemical flowmeters for subsea


BUCKINGHAM -- UK flowmeter specialist Litre Meter has shipped highly customized 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 program 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. The meters can also be calibrated at specific viscosities.

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

The meter features a pressure balance chamber based on Litre Meter's LF15 VFF positive displacement meter.  PVD-coated LF15 VFF flowmeters are suitable for measuring liquids at pressures up to 4,000 bar (60,000 psi) and flowrates from 0.008 l/hr to more than 90 l/hr, depending on the viscosity of the fluid being measured. They are manufactured to operate reliably at temperatures ranging from -40°C to 100°C.

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