Rotameters are also known as variable area flow meters. Variable area flow meters work by measuring the flow rate as the fluid travels through a tapered tube where the cross sectional area of the tube ...

Description: The model DS15 flow meters work according to the proven variable area principle. The float is moved upward in a tapered tube by the flowing medium and its upper edge indicates the flow ...

ZURICH, Oct 17 (Reuters) - Swiss engineering group ABB (ABBN.S), opens new tab needs to improve its performance, new Chief Executive Morten Wierod said on Thursday, after the company reported ...