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Litre Meter ships biggest ever VFF flowmeter!

At the end of 2017 there was more activity than usual at Litre Meter as some of the largest VFF meters were gathered together for assembly and calibration. A complex project involving 7 different VFF sizes including the largest ever VFF was nearing completion.  The V400 weighs a hefty 600kg and measures a suitably massive flow rate of 330 l/min and is designed for 19m³/h normal flow. The liquid is lean MEG (monoethylene glycol) which is used as an antifreeze in offshore production platforms, amongst others.  The VFF series normally tops out at 2″ connections so 6″ was quite an engineering and logistical task.  Sign up for FlowSight, the Litre Meter newsletter.

The pressure rating of 260+bar and the customer’s 6″ line dictated the use of 6″ANSI2500 connections and a 316L body.  On top of this is the standard chemical injection instrument, the FlowPod, which provides a clear display, 2 wire operation and HART all in a 316 Exd enclosure.

6" VFF V400 with 6" ANSI2500 flanges for measurement of Lean MEG, ready for final testing.

6″ VFF V400 with 6″ ANSI2500 flanges for measurement of Lean MEG, ready for final testing.

6" VFF V400 with 6" ANSI2500 flanges for measurement of Lean MEG.

6″ VFF V400 with 6″ ANSI2500 flanges for measurement of Lean MEG.

Other meter sizes included a V270 for methanol measurement, several HF60s also for methanol and an LF03 measuring just 0.5 litres per hour of antifoam (40,000 to one range from the smallest to the largest, in case you’re wondering). They all use the VFF rotary piston technology with pressure balanced chambers to ensure accurate measurement independent of operating pressure.  The range of displacements is from 0.4ml up to around 860 ml.

Connection ratings were equally disparate, ranging from ANSI150 to API6A, matching pressure ratings from 16.5 to 690bar.

Litre Meter CEO Charles Wemyss said: “Many new technologies provide superb measurement at various pressures, flow rates and operating conditions but lack the ability to provide measurement when the going gets tough, the pressures get high and the rates get low, or in this case when the rate gets high.  For super low flows at challenging pressures, or when pulsing flow can’t be tamed, the VFF comes out on top.

“Hydrate, scale and corrosion prevention strategies provide protection during normal operation, start-up and shutdown.

“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 chemical injection applications onshore and offshore have confirmed the instrument’s capability to reliably measure fluids under extreme conditions of both flow and pressure.”

Exclusive distributors of KEM Kuppers flowmeters

Litre Meter are now the exclusive UK distributors of the KEM Küppers range of flowmeters.  These include the ZHM, SRZ positive displacement, HM turbine and the Tricor coriolis series. Sign up for FlowSight, the Litre Meter newsletter.

KEM ZHM01/3 gear meter

KEM ZHM01/3 gear meter

ZHM: Positive displacement gear meter with wide range and in a variety of materials including aluminium and 316 stainless steel.

HM series turbine meters

HM series turbine meters

HM: Axial turbine flowmeter, also in range of materials, from 0.03 to 25,000 litres per minute and up to 350°C.

SRZ helical screw positive displacement flowmeter

SRZ helical screw positive displacement flowmeter

SRZ: Helical screw positive displacement flowmeter combining exceptional accuracy and viscosity rangeability.  Flows from 0.01 to 400 litres per minute. Low pressure drop.

Tricor coriolis mass flowmeters

Tricor coriolis mass flowmeters

Tricor: Coriolis mass flow meter for gases and liquids. Smallest size available in very high pressure rating (1550bar). Range measures from 3 to 230,000 kg per hour, and higher.

All of these units are manufactured in Germany by Litre Meter’s sister company, KEM Kueppers GmbH. Sign up for FlowSight, the Litre Meter newsletter.



Queen’s Award Presentation 2016

We were thrilled to welcome Alexander Boswell, Vice Lord-Lieutenant of Buckinghamshire to our factory last month. He brought with him not only an engraved bowl but also our official scroll. The bowl is engraved with the logo of the Queen’s Award and the official title which is: Queen’s Award for Enterprise- International Trade 2016. We were grateful for a precise speech and official presentation and then Charles Wemyss our CEO said a few words followed by photographs. We were joined by Val Letheren, the Chairman of Buckinghamshire County Council and Jenny Bloom, Chairman of Aylesbury Vale District Council.  Many thanks to Joe Bradshaw Assistant Clerk to the Buckinghamshire Lieutenancy who organised all the VIPs so well. The bowl was handed to Alexander Boswell by the Aylesbury Sea Cadet of the Year.

We’re often asked how we managed to achieve such a striking increase in our export sales. Having worked through it we should know this. Looking back we narrowed the factors down to 5:

  • Firstly, we have a great product, that we keep developing. We target that 25% of our turnover comes from developments in the previous three years. For example, the LF05 size, was introduced in 2012 and soon became our most popular size. More recently, the refreshed VFF range with FlowPod display will be even more desirable.
  • Secondly, we have built up a terrific sales team, both in-house and with our distribution network abroad particularly in the US and South Korea. Our own Chris Ringer has swung many orders. His skill with the Shah Deniz 2 project was exemplary and 135 meters totalled £1.4m all told through 2 separate customers, aided by our great product and flexibility.
  • Thirdly, we made a big step forward on Chevron Jack St Malo in 2011/12 which laid the groundwork for meeting the ever increasing engineering challenges.
  • Fourthly, the Deepwater Horizon accident set new standards and introduced more caution to specifications.
  • Lastly, economic climate including oil price. That’s stability coupled with historic higher oil prices.

There were just 150 winners in the UK this year, whittled down from an extensive entry list of 600 or more.

Litre Meter CEO Charles Wemyss accepted the Award from the Vice Lord-Lieutenant

Litre Meter CEO Charles Wemyss accepted the Award from the Vice Lord-Lieutenant

The CEO accepts the Award bowl.

The CEO accepts the Award bowl.

A cake in Litre Meter's honour

A cake in Litre Meter’s honour


We are delighted to celebrate being one of the select businesses recognised as winners of the 2016 Queen’s Award for Enterprise – the UK’s highest accolade for business success.

Litre Meter awarded Queen's Award for International Trade

Litre Meter awarded Queen’s Award for International Trade

Our award was received for Enterprise in International Trade and was in recognition of achieving significant year-on-year growth of export sales from 2013 to 2015.  In turn, this helped us achieve record increases in turnover and profits resulting in a Compound Annual Growth Rate of 48%.


CEO Charles Wemyss: ‘As a very specialist company working on an international basis from the middle of a field in Buckinghamshire it is an outstanding achievement to be recognised at the highest levels for our success.’


Litre Meter was established as a family business in 1975 by the current CEOs father, where it moved to Buckinghamshire in 1978. Today, Litre Meter is recognised as the world’s premier Flow Measurement Specialist, employing home grown talent in a converted barn in North Marston.  Our highly engineered products are used in various industries throughout the globe, such as the Oil & Gas sector, where they can be installed on platforms in some of the deepest seas and most arduous environments. We pride ourselves in using local suppliers for our materials, where possible and are proud to be an active part of the UK’s engineering heritage.


Notes for Readers

  • 249 Queen’s Awards (QA) have been announced in 2016 for outstanding business achievement in the fields of International Trade, Innovation and Sustainable Development. Winners of The Queen’s Awards can expect an invitation to attend a special reception at Buckingham Palace.
  • QA winners can also use The Queen’s Award Emblem in advertising, marketing and on packaging for a period of five years as a symbol of their quality and success.
  • The awards are made annually by HM The Queen and are only given for the highest levels of excellence demonstrated in each category.
  • To find out more about next year’s awards visit the Queen’s Award website.
  • Litre Meter, based near Buckingham, UK, was established in 1975 and specialises in the custom design and manufacture of instruments for measuring and controlling fluids.
  • The company has particular expertise with offshore and sub-sea flow measurement and has supplied flowmeters for these applications throughout the world. The company’s VFF flowmeter was developed specifically for the petrochemical industry.
  • Litre Meter also pioneered the development of the Pelton wheel flowmeter, an accurate and versatile technology that has since been used across many industries to measure a variety of low viscosity liquids at both low and high flow rates.
  • Since 2011 Litre Meter has been part of the TASI Group of companies which includes AW-Lake, KEM and TRICOR.
    Rotary Piston Litre Meter flow meter with Hub connectors for high pressure flow measurement

    Rotary Piston Litre Meter flow meter with Hub connectors for high pressure flow measurement


    Litre Meter FlowPod flowmeter instrumentation

    Litre Meter FlowPod flowmeter instrumentation

Litre Meter operate out of a barn in the rolling Buckinghamshire countryside - Hart Hill Barn

Litre Meter operate out of a barn in the rolling Buckinghamshire countryside – Hart Hill Barn

Now we are 40

LM1 - Mug shotLitre Meter is 40 this year and to celebrate we are giving away commemorative mugs.

To get yours while stocks last email us at and we will get one in the post.