Laserfiche WebLink
Chapter 7: Inspection, Evaluation,and Testin <br /> = _ <br /> 7.7.7 API Recommended Practice 574 - Inspection Practices for Piping System <br /> Components <br /> API Recommended Practice 574—Inspection Practices for Piping System Components(API RP 574)163 <br /> covers inspection practices for piping,tubing,valves (other than control valves), and fittings used in petroleum <br /> refineries and chemical plants. It addresses inspection planning processes, inspection intervals and techniques <br /> and types of records.API RP 574 is intended to supplement API 570. It does not cover inspection of specialty <br /> items, such as instrumentation and control valves.The recommended practice is organized as follows: <br /> • Section 1 introduces the recommended practice and details its scope. <br /> • Sections 2 and 3, respectively, list the references and definitions used throughout the <br /> recommended practice. <br /> • Section 4,which begins the substantive portion of the recommended practice, details the types, <br /> material specifications, sizes, and other characteristics of the components of the piping system, <br /> which include the piping,tubing,valves, fittings,flanges and joints. <br /> • Section 5 details common joining methods, i.e., welding,threading and flanging. <br /> • Section 6 presents the rationale for inspecting the piping system:to identify active deterioration <br /> mechanisms and to specify repair, replacement, or future inspections for affected piping. It <br /> suggests examining inspection history and points to API 570 as providing the basic requirements <br /> for such an inspection program. <br /> • Section 7 discusses the development of an inspection plan, including risk-based plans and <br /> interval-based plans. It presents considerations for monitoring the piping system components <br /> for corrosion and inspecting for damage. <br /> • Section 8 provides guidelines for establishing the frequency and extent of inspection using the <br /> following conditions to determine the frequency of inspection: the consequences of a failure <br /> (piping classification, see summary of API 570 in Section 7.7.6 for a description) degree of risk, <br /> amount of corrosion allowance remaining, historical data available, and regulatory <br /> requirements. It also discusses inspections on piping that is operating and not in operation. <br /> • Section 9 outlines the safety precautions and preparatory work to be performed prior to <br /> inspecting the piping system components.The inspection tools commonly used to inspect piping <br /> are listed in Section 9.2.2 of API RP 574. <br /> • Section 10 details the specific procedures and practices to be followed when inspecting the <br /> components of the piping system such as external and internal visual inspection, pressure tests, <br /> 163 API RP 574,"Inspection Practices for Piping System Components,"3rd ed.,American Petroleum Institute,November 2009. <br /> SPCC GUIDANCE FOR REGIONAL INSPECTORS 7-71 <br /> December 16, 2013 <br />