ISA 75.26.01 PDF

Control Valve Diagnostic Data Acquisition and Reporting

ISA 75.26.01 – Control Valve Diagnostic Data Acquisition and Reporting

This document applies to all pneumatically operated, automated rotary or reciprocating, on/off, ormodulating valves. It also includes automation components (i.e. positioners, transducers, and solenoids)as applicable. It provides a methodology for standardizing the acquisition and reporting of data used inassessing valve condition. The document includes the type of data to be acquired, the number ofmeasurements to be recorded and their resolution, units of measure, nomenclature, computer file storageformat, graphical presentation, and other reporting formats. It does not address interpretation of data ordiagnosis of valve condition. All data reported per this document are acquired with the valve out of service with no internal dynamic forces acting on the closure member.