Positive Displacement Flow Meter

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Positive Displacement Flow Meter

Positive displacement flow meters are devices that are used to measure the flow rate of a substance, most commonly a fluid. The thing that sets positive displacement flow meters apart is that it utilizes mechanical components that are shifted by the flow of liquid in order to gauge the rate of the flow of that fluid.

These flowmeters measure the volumetric flow rate of a fluid, but they are capable of providing the volumetric flow rate of a gas as well. A common analogy is to think of filling a bucket of water and then replacing that bucket with another bucket while timing the rate the second bucket is filled, with this information you can determine the flow rate assuming that appropriate pressure and temperature compensations are met. Read More…Request for Quote

Positive Displacement Flow Meter Positive displacement flow meters are devices that are used to measure the flow rate of a substance, most commonly a fluid. The thing that sets positive displacement flow meters apart is that it utilizes mechanical components that are shifted by the flow of liquid in order to gauge the rate of the flow of that fluid.

Leading Manufacturers

Monterey, CA  |  831-373-0200

Sierra manufacturers high performance mass flow meters and controllers for nearly any gas, liquid or steam. Customers choose Sierra when they need an accurate and repeatable flow measurement, short delivery lead times, expert flow advice and long term support.

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Sierra Instruments $$$

West Valley City, UT  |  800-316-5342

HydraCheck offers everything needed to service, maintain and troubleshoot hydraulic systems at prices you can afford. We manufacture and distribute diagnostic test kits, flow meters, pressure gauges, tachometers, etc.

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HydraCheck $$$

Orangeburg, NY  |  800-866-3837

Aalborg Instruments & Controls is a globally recognized manufacturer of precision instrumentation for flow measurement and control. We offer variable area flow meters, thermal mass flow controllers, and more. Since our founding in 1972, it has been our commitment to develop, produce and deliver the highest quality products and services, as well as consistently meet or exceed customer requirements. We are ISO 9001:2015 certified.

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Aalborg Instruments & Controls, Inc. $$$

Concord, CA  |  925-687-8363

As a custom flow meter manufacturer, it is our goal at RCM Industries to be your number one source for flow meters. All flow meters are suitable for measuring water, oil, and most low viscosity liquids, and are available in Monel, stainless steel, and bronze alloys. With every application, we aim to improve productivity, reduce cost, and protect the most sensitive equipment and processes.

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RCM Industries, Inc. $$$

Kent, WA  |  800-975-8153

SeaMetrics, a flow meter manufacturer, produces turbine flow meters, paddle wheel flowmeters, insertion flow meters, low-flow meters, water flowmeters, pulse flowmeters, flow sensors and electronic controls.

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SeaMetrics, Inc. $$$

Blythewood, SC  |  803-714-2000

Spirax Sarco is an established manufacturer of a variety of flowmeter products for liquid, gas and steam applications for a wide range of markets. Spirax Sarco is able to provide its customers with a family of products capable of measuring and controlling most liquids and gases.

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Spirax Sarco, Inc. $$$
placeholder image Sierra Instruments HydraCheck Aalborg Instruments & Controls, Inc. RCM Industries, Inc. SeaMetrics, Inc. Spirax Sarco, Inc.

The rate at which the mechanism is rotating is directly related to the flow rate of the fluid. There are two different categories within positive displacement flow meters, first sensor-only systems which offer additional capabilities, specifically an integrated user interface display, and transducers which provide electronic outputs for controllers, processors and data acquisition systems.

Both styles of positive displacement flow meters are highly accurate and can be used in applications that use dirty, corrosive, or even very viscous fluids. These meters are used in a number of different applications from chemical injection to hydraulic testing and other precision applications.

For each type of system there are specifications that you should pay attention to when shopping for the right flow meter such as minimum and maximum measureable flow rate, temperature range, operating pressure, connection size, percent accuracy, and maximum allowable material viscosity.

Having a better idea of what type of specifications your application requires is vital to finding the right positive displacement flow meter. We encourage you to find a trusted flow meter manufacturer to work with you. They can assist you in finding a flow meter that will best fit your application and improve the overall efficiency of your system by monitoring the flow right within that system.