Product Information

Variable Area Flow Meters

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The variable area flow meter’s operation is based on the variable area principle: fluid flow raises a float in a tapered tube, increasing the area for passage of the fluid. The greater the flow, the higher the float is raised.
The height of the float is directly proportional to the flowrate. With liquids, the float is raised by a combination of the buoyancy of the liquid and the velocity head of the fluid. With gases, buoyancy is negligible, and the float responds to the velocity head alone.
The float moves up or down in the tube in proportion to the fluid flow rate and the annular area between the float and the tube wall. The float reaches a stable position in the tube when the upward force exerted by the flowing fluid equals the downward gravitational force exerted by the weight of the float.
A change in flowrate upsets this balance of forces. The float then moves up or down, changing the annular area until it again reaches a position where the forces are in equilibrium. To satisfy the force equation, the variable area flow meter float assumes a distinct position for every constant flowrate.

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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