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Positive Displacement Flow Meters

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A positive displacement flow meter otherwise know as 'PD Meters' measure flow by ‘displacing’ a precise and known volume for each revolution of their internal parts. There are many types of internals such as two or three gear oval gear, nutating disc, rotary piston and sliding vane. Because this style of flow meter displaces a known volume, its accuracy is largely unaffected by changes in the physical properties of the liquid, such as viscosity or density. In volumetric terms, a ‘litre’ is always a ‘litre’ regardless of viscosity or density. A PD flowmeter is extremely accurate, offering linearity of better than 0.1% of reading and repeatability of better than 0.05%.
To ensure high accuracy, the clearances inside the flow meter measuring chamber must be as fine as possible without causing excessive wear. This means that the metered liquids this flow meter can measure must be clean and free from suspended solids. In most cases, it is prudent to install a suitable liquid filter on the inlet side of the meter. Positive Displacement flow meters require no upstream/downstream straight pipe lengths so, if required, a filter can be directly bolted to the inlet port.

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About us

Founded in 1982, Flowquip Ltd are leading specialists in flow meters, flow metering systems and process control solutions. With over 35 years’ experience within the industry, our UK-based company offers an extensive range of bespoke products that cannot be found anywhere else. Over the years, we have adapted and grown to meet the inevitable demands and challenges that occur over a long period of time. Our knowledge and expertise as a company allows us to provide complete flow metering solutions and flow instrumentation across a wide range of sectors.

Here at Flowquip, we pride ourselves on our leading flow meters and other related products that have been highly praised for their efficiency and effectiveness. Some of our main products include Coriolis flow meters, electromagnetic flow meters, positive displacement flow meters, smart flow meters, thermal mass flow meters, turbine flow meters, ultrasonic flow meters, variable area flow meters, vortex flow meters, air flow meters, chemical flow meters, clamp-on flow meters, compressed air flow meters, fuel flow meters, gas flow meters, hygienic flow meters and more.

Since establishment, we as a company have built up an extensive client base, including customers within the processing, food and beverage, chemicals, pharmaceuticals, oil and gas industries. We take pride in developing and maintaining long-term working relationships with customers who have recommended our services for almost four decades. As well as our products, we also offer instrumentation including flow rate totalisers, batch controllers, blend controllers, ratio controllers, gas computers, heat calculators, flow computers, dataloggers, level monitors and countless others.

We at Flowquip specialise in a variety of applications such as additive dosing, steam metering, water metering, bio-fuel blending, energy metering, batch control systems, road tanker loading, tank and level control, batching of liquids, engine fuel efficiency, datalogging, gas flow measurement, effluent measurement and more. We as a company are proud to work alongside some of the leading specialists across the UK, including partners such as B Meters, CS Instruments, Contrec, Endress & Hauser, Georg Fischer and VAF.

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Articles/Press Releases

03/11/2021 - Flowquip make the process of batching liquids simple, safe, and accurate
Flowquip Ltd, the UK’s leading provider of flow metering solutions, have been supplying safe and accurate batching systems for over 40 years. Stocking a range flow meters for pipe diameters up to 100mm, as well a wide range of batch controller options.
19/08/2021 - Flowquip celebrate 40 years supplying flow measurement solutions to the Chemical Industry
Not many instrumentation companies can claim to have 40 years experience supplying metering solutions to the chemical industry.

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Latest Reviews

Flowquip Ltd

Flowquip Ltd provided exceptional service and went 'above and beyond' to offer us same day service and return of our goods the night before an important audit. Friendly staff made what was a stressful time that little bit less stressful. Oema would highly recommend Flowquip Ltd.

By Coles Baird - 24 May 2023

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Company details for Flowquip Ltd

Flowquip Ltd