Venturi Flow Meters

A reliable source for Flow Meter information and leading Flow Meter Companies & Manufacturers.

Like many other flow meters, venturi meters use a differential pressure measurement to determine the flow rate of a fluid in a system, which means they are relatively easy to use and operate. For this reason, venturi meters are used for many industrial and commercial purposes. Read Moreā€¦

Venturi Flow Meters Venturi flow meters, or simply venturi meters, are devices used to measure the flow rate of a variety of fluids in many different applications. This type of flowmeter is commonly used in plumbing applications and applications involving flowing water, propane, and oil. However, venturi meters can be used to measure the flow rate of gaseous fluids as well.

Leading Manufacturers

West Valley City, UT  |  800-316-5342

Established in 1990, HydraCheck is the market leader in developing, manufacturing, and selling engineered flow meters. Well known for their modular design, high performance and superior quality, HydraCheck boasts a full line of flow meters and transmitters as well as accessories such as displays, counters and indicators to ensure every customer receives the most suitable flow meter for any application.

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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

Since our founding in 1972, RCM Industries has served industries ranging from pharmaceutical to chemical to food and beverage. Our flow meters are designed to improve productivity, reduce cost, and protect the most sensitive equipment and processes. All flow meters are suitable for measuring water, oil, and most low viscosity liquids, and are available in Monel, stainless steel, and bronze alloys. No matter what your application, we aim to exceed your expectations.

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RCM Industries, Inc. $$$

Marlborough, MA  |  888-738-0188

Spire Metering Technology offers one of the broadest, most affordable lines of flow measurement and energy metering products in the industry today. Through continuous innovation, we transform complex ultrasonic technology into affordable, reliable solutions for accurate flow and energy measurement.

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Spire Metering Technology $$$

Trevose, PA  |  215-355-8400

Thermal Instrument Company offers a wide range of thermal flow meters and flow switch products. Our products include mass flow meters, inline flow meters, insertion probes and signal processors. We serve the chemical processing, food, landfill and pharmaceutical industries.

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Thermal Instrument Company $$$
placeholder image HydraCheck Aalborg Instruments & Controls, Inc. RCM Industries, Inc. Spire Metering Technology Thermal Instrument Company

These meters, as their name suggests, operate based on the Venturi effect, which is a phenomenon that occurs when a fluid's pressure is reduced while flowing through a constricted pipe. The flow meter is made up of several components, the most important of which is a venturi tube. This unique tube is made up of an entry cone, a small diameter tube, and an exit cone.

The tube is placed within a pipeline system and causes the diameter of the pipeline to gradually decrease down to the diameter of the small tube as the fluid passes through the entry cone. The fluid then flows out of the small tube and into the exit cone which slowly returns the pipeline back to its original diameter. This unique design generates the Venturi effect.

The flow meter is also comprised of two pressure measurement devices, one located before the constricted pipe and the other located within the small diameter connecting tube in the venturi tube. The venturi tube creates a pressure differential between these two points, which can be measured by the two pressure sensors. Using a complex formula, the flow meter can determine the volumetric flow rate of the fluid in the system. This formula depends on whether the fluid is compressible and the radius of the pipeline. Other important factors include fluid viscosity and the conical angle of the venturi tube entry and exit cones.

Venturi flow meters are well known for their reliability, long-term performance, and versatility, making them an excellent option for just about any standard metering application. Their reliability and longevity can be attributed to their relatively simple design and lack of moving parts. This allows the device to run very efficiently and significantly reduces the need for regular maintenance.

Compared to many other meters, venturi flow meters also provide exceptionally accurate measurements, and this type of flow meter is often used as the primary standard for flow calibration. While they do provide many benefits, these meters are still limited due to the loss of energy when the fluid travels through the reduced diameter of the venturi tube. However, the conical exit of the venturi meter helps recover much of the consumed energy, making the venturi flow meter an extremely effective and reliable flow metering option.,/p.

Venturi Flow Meter Informational Video