Control Valve Sizing In Class Examples On the pages that follow there are reprints of manufactures flow coefficients tables for a number of styles of valves. After that there are a number of valve data sheets with process conditions for different examples of valves to be sized. Using the data from the control valve data sheets and flow coefficient tables, size the valves. Include in your solutions, calculations for the following factors: 1.0 qm mass flow rate of fluid. 2.0 Cv approximate to initially estimate the size of the valve. 3.0 Manufactures data for the initial valve chosen: Cv selected, d, Fl, and Xt where applicable. 4.0 The piping geometry factor (Fp) for the initial valve chosen. 5.0 The valve recovery factor (Flp) if a liquid, or the pressure drop ratio factor (Xtp) if a compressible fluid, for the initial valve chosen, as needed. 6.0 The differential pressure maximum (Pm) if a liquid, or the gas expansion factor (Y) if a compressible fluid, for the initial valve chosen. 7.0 The Cv required for the initial valve chosen. 8.0 Is the initial valve the right choice or is the next larger size the right choice? 9.0 Reevaluation of Cv required with the next larger size, if needed.
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Control Valve Sizing In Class Examples
On the pages that follow there are reprints of manufactures flow coefficients tables for a number of styles of valves. After that there are a number of valve data sheets with process conditions for different examples of valves to be sized. Using the data from the control valve data sheets and flow coefficient tables, size the valves. Include in your solutions, calculations for the following factors:
1.0 qm mass flow rate of fluid.
2.0 Cv approximate to initially estimate the size of the valve.
3.0 Manufactures data for the initial valve chosen: Cv selected, d, Fl, and Xt where applicable.
4.0 The piping geometry factor (Fp) for the initial valve chosen.
5.0 The valve recovery factor (Flp) if a liquid, or the pressure drop ratio factor (Xtp) if a compressible fluid, for the initial valve chosen, as needed.
6.0 The differential pressure maximum (Pm) if a liquid, or the gas expansion factor (Y) if a compressible fluid, for the initial valve chosen.
7.0 The Cv required for the initial valve chosen.
8.0 Is the initial valve the right choice or is the next larger size the right choice?
9.0 Reevaluation of Cv required with the next larger size, if needed.
Control Valve Sizing In Class Examples
Flow Coefficients (ANSI/ISA/IEC) from Fisher, Cat12, Page 1-89, Oct. 1988
Valve Design ES, Classes 125 to 600 with Equal Percentage Cage
Body size, Inches
Port Dia Travel Valve Opening—Percent of Total Travel