Showing posts with label Badger Meter. Show all posts
Showing posts with label Badger Meter. Show all posts

Oval Gear Flow Meters: Accurate, Robust, and Long Life

Oval Gear Flow Meters Although there are many types of flow meters used to measure fluid flow rates, positive displacement (PD) designs, including Oval Gear flow meters, are unique as they are the only meters on the market that directly measure actual volume. All other metering techniques infer the volume by making a type of measurement and equating it to the flow rate.

One of the key criteria in selecting the right flow meter is the degree of accuracy dictated by the application. To meet high-precision requirements in various industrial environments, Oval Gear flow meters fit the bill. These meters feature a wide flow range, low pressure drop and extended viscosity range. Oval Gear flow meters offer easy installation and high accuracy, plus measure high temperature, viscous and caustic liquids with simple calibration.

Oval gear flow meters are simple and robust. They operate by interlocking two oval gears, offset by 90 degrees, inside the meter housing which are then rotated by the flowing media. They are very rugged and designed to operate in very harsh environments. Accuracy is maintained irrespective of temperature, viscosity change, or flow pulsation. It's not unusual to see these meters perform in the field for upwards of 40 years.
Flow path and operation of Oval Gear Flow Meter
Flow path and operation of Oval Gear Flow Meter
Oval Gear flow meters are an excellent choice for any number of industrial applications including:
  • Chemicals
  • Petrochemicals
  • Water and Wastewater
  • Oils and Diesel Fuel
  • Pulp and Paper
  • Paints and Coatings
  • Printing
Download Oval Gear flow meter brochure here.

For more information on Oval Gear flow meters visit https://teco-inc.com or call 800-528-8997.

Introduction to Industrial Flowmeters

Magmeter
Magnetic flowmeter
(courtesy of Badger Meter)
Flowmeters measure the rate or quantity of moving fluids, in most cases liquid or gas, in an open channel or closed conduit. There are two basic flow measuring systems: those which produce volumetric flow measurements and those delivering a weight or mass based measurement. These two systems, required in many industries such as power, chemical, and water, can be integrated into existing or new installations. For successful integration, the flow measurement systems can be installed in one of several methods, depending upon the technology employed by the instrument. For inline installation, fittings that create upstream and downstream connections that allow for flowmeter installation as an integral part of the piping system. Another configuration, direct insertion, will have a probe or assembly that extends into the piping cross section. There are also non-contact instruments that clamp on the exterior surface of the piping add gather measurements through the pipe wall without any contact with the flowing media.
Turbine flowmeter
Turbine flowmeter
(courtesy of Badger Meter)

Because they are needed for a variety of uses and industries, there are multiple types of flowmeters classified generally into four main groups: mechanical, inferential, electrical, and other.

Quantity meters, more commonly known as positive displacement meters, mass flowmeters, and fixed restriction variable head type flowmeters all fall beneath the mechanical category. Fixed restriction variable head type flowmeters use different sensors and tubes, such as orifice plates, flow nozzles, and venturi and pitot tubes.
Rotameter
Variable area flowmeter
(courtesy of ABB)

Inferential flowmeters include turbine and target flowmeters, as well as variable area flowmeters also known as rotameters.

Laser doppler anemometers, ultrasonic flowmeters, and electromagnetic flowmeters are all electrical-type flowmeters.

The Operating Principles of a Magnetic Flowmeter

Below is a video, courtesy of Badger Meter, illustrating the operating principles of magnetic flowmeters (also known as magmeters).

A magnetic field is applied to the flow tube, resulting in an EMF proportional to the flow velocity passing perpendicular to the magnetic flux lines. The physical principle at work is Faraday's law of electromagnetic induction.

Magnetic flow meter requires a conductive fluid, and electrically insulated internal pipe surfaces to operate.

Advantages:
  • Low maintenance cost
  • No moving parts
  • Good for slurry
  • Good for corrosive fluids
  • Very linear
  • Minimal flow restriction

Disadvantages:
  • Requires electrically conductive fluids
For more information on magmeters, visit TECO at http://www.teco-inc.com of call 800-528-8997.

Industry Specific Flow Meter Brochures

Industries served by TECO
Industry Specific Flow Measurement Brochures
Here is a listing of flowmeter brochures for specific industries, courtesy of Badger Meter. The brochures provide proven and accepted products for the following markets and applications:

Water & Wastewater Brochure
Water and wastewater treatment facilities have complex operational processes, which involve a wide range of flow measurement tasks. These applications demand the highest flow meter accuracy and reliability, as well as long-term stability and a low cost-of-ownership.

Oil & Gas Brochure
In the oil and gas industry, the flow of liquids and gases must be measured during every phase of exploration, production and transportation. Upstream operations span offshore and onshore activities, including well testing, enhanced oil recovery, fractionation, completion, and separation to recover and prepare crude oil and natural gas.

Chemical & Petrochemical Brochure
Badger Meter products are used across the entire hydrocarbon sector — from upstream production to feedstock for the intermediate stage and downstream processing — in applications ranging from catalyst injection and gas flow measurement, to batching and blending, custody transfer and fugitive emissions monitoring.

HVAC & Building Automation Brochure
You and your customers expect peak performance every day year-round from your HVAC, hydronic chilled/hot water applications and irrigation systems. Products provide accurate measurements, energy calculations and integrated data communications to increase your building’s system performance.

Test & Measurement Brochure
A variety of highly accurate and dependable flow measurement solutions for the demanding test and measurement market.