EC: TVA - Target Variable Area Flowmeter
Process control – Flowmeters: The TVA from Spirax Sarco is designed for use on saturated steam where there are large variations in flow rates. This is a Control Engineering 2012 Engineers’ Choice finalist.
Designed for use on saturated steam, the TVA from Spirax Sarco is available in 2-in., 3-in., and 4-in. sizes. With a wide flow range turndown of 50:1, it is ideal for applications where there are large variations in flow rates. The integral electronics unit removes the need for a differential pressure transmitter, impulse lines, and additional equipment. A built-in temperature sensor provides full density compensation and enables power, energy, flow, total flow, pressure, and temperature to be displayed on the on-board LCD display. All flow parameters are fully configured on an integral keypad so no additional tools or configurations are required for setup and commissioning. Communication with many different host systems is possible with a choice of Digital ModBus, 4 mA to 20 mA and pulse outputs. The TVA is supplied as a fully calibrated unit. The unique design of a variable area cone in flow path makes it highly resistant to erosion from water droplets in saturated steam. As a result, it can be installed for long periods without deterioration in accuracy. It has a wafer construction and requires only six diameters of straight pipe upstream and three downstream, making it suitable for installation in confined spaces.
Spirax Sarco Inc.
Return to the list of the 2012 Engineers' Choice finalists.
- Events & Awards
- Magazine Archives
- Oil & Gas Engineering
- Salary Survey
- Digital Reports
- Survey Prize Winners
Annual Salary Survey
Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.
There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.
But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.
Read more: 2015 Salary Survey