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Positive Displacement Flow Meter Manufacturers and Suppliers

IQS Directory is a top industrial directory listing of leading industrial positive displacement flow meter manufacturers and suppliers. Access our comprehensive index to review and source positive displacement flow meter manufacturers with preview ads and detailed product descriptions. These positive displacement flow meter companies can design, engineer and manufacture positive displacement flow meters to your specifications and application need. A quick and easy to use request for quote form is provided for you to contact these positive displacement flow meter manufacturers and suppliers. Each company has detailed profile information, locations, phone number, website links, product videos and product information defined. Read customer reviews and product specific news articles. We are the right resource for your information requirement whether its for a manufacturer of positive displacement flow meters, diesel fuel flow meters, fuel flow meter for boats.

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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. When it matters, choose Sierra. Visit www.sierrainstruments.com.
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Turn to GPIMeters.com for top of the line flow meters. Our high quality solutions are very affordable and we will work with you every step of the way. We aim to exceed your expectations and our products will last for many years to come. All of these flow meters have been extensively tested. Please give us a call today!
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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. Our inline flow meters monitor pump performance and media flows in hydraulic systems.
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As flow meter manufacturers, John C. Ernst's measurement equipment can be digital or mechanical, in addition to a variety of other types for different measurements of flow. For each type, there are specific guidelines that are followed by companies like John C. Ernst to ensure proper usage. For more information, please call or go to their helpful website for full product descriptions.
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We are committed to quality, and that shows in all our products and flow meters. Our customers expect the highest quality from us, which is why we promise to do the best job possible in all products from design to manufacturing! We can help you identify the right products for your needs, and can provide help and support beyond simple sales. Contact us to learn more!
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Siemens flow meters meet the toughest challenges and are available in a wide variety of chemical resistant materials. Highly accurate and reliable, they measure and monitor flow rates of liquids with varying consistencies as well as gases. Technologies include electromagnetic, ultrasonic, differential pressure, vortex or Coriolis mass.
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Industry Information

Positive Displacement Flow Meter

Positive displacement flow meters measure fluid, usually liquid, flow when the flow mechanically displaces components placed in the fluid. 

Within positive displacement flow meters are chambers through which fluid flows. These chambers contain a variety of mechanical components that help separate liquid or gas media into fixed, metered volumes. One such component is the rotating or reciprocating mechanism, which allows free flow only when it rotates a certain way. All components are rotated and shifted, or displaced, by the flow of liquid. The rate at which the rotating mechanism turns is directly proportional to the flow rate of the fluid. These features set positive displacement flow meters apart from other flow meters. 

In order to gauge flow rate, positive displacement flow meters measure displacement. To do so, they accumulate a fixed volume of fluid, and then keep track of the number of times the volume is filled. One way to think about this is with the following analogy: A woman fills a bucket of water and then quickly grabs another bucket. She fills this bucket to the same line as the first bucket. As she does so, she times the rate at which the second bucket fills. Then, she uses the information to determine flow rate. (Assume that appropriate pressure and temperature compensations are met.)

There are two main types of positive displacement flow meters, sensor-only flow meters and transducer flow meters: 

Sensor-only systems: provide integrated user interface display

Transducer systems: provide electronic outputs for controllers, processors and data acquisition systems

Both types of positive displacement flow meter are highly accurate and can be used with dirty, corrosive, or very viscous fluids. They can also be used to measure the volumetric flow rate of gases. They are popular for use in applications from chemical injection, to hydraulic testing, among other precision applications.

Each type of flow meter system has important specifications that you need to note while shopping for them. These include: temperature range, connection size, minimum and maximum measurable flow rate, percent accuracy (usually shown as a percentage of actual reading, not the full scale), operating pressure, and maximum permissible material viscosity.

For the best results, it's important that you connect with an experienced flow meter manufacturer that can guide your selection process. If you're interested, such a manufacturer can likely also design you a custom flow meter system. To learn more, check out the manufacturers we have listed on this page. 


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