of operating apertures and controllable flowrale : range. usual lo determine lhe operating pcdnls by means of guidelines or in nslances, in case-by-case basis. The former, al besl, is proce- dure surrounded by doubt because of lhe uncertainly lo the significant resemblance of the the previous one thal generated lhe rule. latter possible there are conditions for controlling lhe In addition, the valve-closure schedule can be specified according lo the pallern of lhese curves: lhe lower lhe variation, lhe faster lhe closure- element movement may be, and vice versa.

doi:10.1201/9781482286809-152

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range. usual lo determine lhe operating pcdnls by means of guidelines or in nslances, in case-by-case basis. The former, al besl, is proce- dure surrounded by doubt because of lhe uncertainly lo the significant resemblance of the the previous one thal generated lhe rule. latter possible there are conditions for controlling lhe In addition, the valve-closure schedule can be specified according lo the pallern of lhese curves: lhe lower lhe variation, lhe faster lhe closure- element movement may be, and vice versa.

ABSTRACT

of operating apertures and controllable flowrale range. Il is usual lo determine lhe operating pcdnls by means of guidelines or , in some i nslances, in a case-by-case basis. The former, al besl, is a procedure surrounded by doubt because of lhe uncertainly as lo the significant resemblance of the problem lo the previous one thal generated lhe rule. The latter is a cumbersome procedure for lhe analyst, especially when considering several different valves and several operating conditions for each one.