INTRODUCTION Venturi tubes, flow nozzles, and flow tubes, like all differential pressure producers, are based on Bernoulli’s theorem. General performance and calculations are similar to...
The butterfly valve is a rotary control valve. Standard butterfly valves are dampers that are shaped from discs which rotate in the flow path to regulate...
Introduction While measuring flow, errors can be obtained some of the errors are due to flow transmitters that can be nullified by calibration there are...
Introduction Orifice plates are mainly used for flow measurements. The orifice consists of a flat plate with a hole drilled in it. When a fluid passesthrough an orifice, the discharge is often considerably less than the amount calculated...