75.02
ANSI/ISA-75.02-1996 - Control Valve Capacity Test Procedures
Control System Theory, softbound, 28pp.
$65.00

Provides a test procedure for obtaining the following factors for sizing control valves: valve flow coefficient (Cv); liquid pressure recovery factors (Fl and Flp); Reynolds Number factor (Fr); liquid critical pressure ratio factor (Ff); piping geometry factor (Fp); and pressure drop ratio factors (Xt and Xtp). The standard is intended for control valves used in flow control of process fluids and is not intended to apply to fluid power components as defined in the National Fluid Power Association Standard NFPA T.3.5.28-1977.

Scope:
This test standard utilizes the mathematical equations outlined in ANSI/ISA-75.01-1985 (R1995), Flow Equations for Sizing Control Valves, in providing a test procedure for obtaining the following:

• Valve flow coefficient, Cv
• Liquid pressure recovery factors, FL and FLP
• Reynolds Number factor, FR
• Liquid critical pressure ratio factor, FF
• Piping geometry factor, FP
• Pressure drop ratio factor, xT and xTP

This standard is intended for control valves used in flow control of process fluids and is not intended to apply to fluid power components as defined in the National Fluid Power Association Standard NFPA T.3.5.28-1977.

Purpose:
The purpose of this standard is to provide a procedure for testing control valve capacity and related flow coefficeints for both compressible and incompressible fluids. This standard also provides a procedure to evaluate the major data.