Flowmeters
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Flowmeter Selection Requires a Thorough Understanding of Process Operating Conditions and Equipment Performance Requirements PlantServices.com
<<There are many different types of flowmeters, with an ever-increasing number of design variants for each type. Moreover, advances in manufacturing processes and materials have opened new applications for these devices. Selecting the proper meter for a particular application requires a thorough understanding of process operating conditions and equipment performance requirements. Process operating conditions include estimated minimum and maximum flow rates, operating temperature and pressure, and physical properties such as operating viscosity, density or specific gravity, abrasion, and corrosivity. Performance requirements are determined by operating constraints, notably accuracy and rangeability. Flowmeter accuracy is the relative degree of freedom from error, specified as a limit that must not be exceeded. Rangeability is the ratio of maximum to minimum operating capacity within a specified accuracy tolerance limit. Following is a guide to eight popular types of flowmeters, including application advantages and limitations.>> Received on Thu Aug 16 13:38:00 2001
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