Ball valve flow calculation formula
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Does that colleague have the formula for calculating the flow rate of handshake ball valves?
Ball valves do not require flow calculation; the data sheets with flow coefficient values are available in the sample materials provided by larger companies
Well, valves and related piping accessories are mainly selected based on specific requirements
Ball valves should be selected based on the pipe diameter, as the calculation of pipeline resistance loss is done assuming the valve is fully open and based on the pipe dimensions. Therefore, as long as the pipe diameter matches that of the ball valve, the flow rate in the pipe will be the same as that of the ball valve.
Isn’t the flow rate indicated when the valve leaves the factory?
There are two types: full-bore and reduced-bore. The full-bore type is considered to be a pipe with the corresponding nominal diameter, while for the reduced-bore type, the dimensions need to be checked in the specifications; it can be regarded as a pipe with a changed diameter