Processing Magazine

Variable area flowmeters offer custom calibration for variety of applications

September 16, 2009
The latest addition to the company’s broad line of fluid system components, the variable area flowmeters are used to measure liquid and gas flow rates by means of a tapered tube and float. The flowmeters provide highly accurate measurement with individually calibrated scales and a 10:1 turndown ratio. All VAFs are factory calibrated and marked to indicate the specific media, flow range, and accuracy class. In addition, the product can be calibrated and marked to customer-specific applications. Customers can choose from ten variations of variable area flowmeters fitted with glass or metal measuring tubes offered by the company. Series are available featuring glass measuring tubes, which enable direct view of the process reading and flow at the meter and series models equipped with metal measuring tubes and mechanical or electronic displays for use in difficult operating conditions where pressure or temperature is a factor. All models are easy to install and have no wearing parts to help extend product life. The VAFs are available with NPT and flange end connections in sizes from 1/8- to 1 ¼-inch. Available options include high/low flow indicators, transistor relays, and 4 to 20mA analog outputs.