API 570, or the Piping Inspection Code, is a standard developed by the American Petroleum Institute (API). It provides guidelines and requirements for the inspection, repair, alteration, and rerating of in-service piping systems used in various industries, especially those involving hydrocarbons, chemicals, and other hazardous materials. The primary goal of API 570 is to ensure that piping systems operate safely and reliably, minimizing the risk of leaks, corrosion, and other failures that could lead to environmental hazards, safety concerns, or costly downtime.
The code serves as a critical framework for maintaining piping integrity, focusing on preventive maintenance and regular inspection to detect and mitigate potential issues early on. It applies not only to the process piping systems commonly found in refineries, chemical plants, and oil production facilities but also to other industrial settings where pressure piping systems are integral to operations.
API 570 is part of a suite of inspection and maintenance standards under the API, which also includes API 510 for pressure vessels and API 653 for storage tanks. Together, these standards support a holistic approach to asset integrity management across facilities. By adhering to API 570, companies can maintain compliance with regulatory requirements, enhance system reliability, and protect both personnel and the environment from the hazards associated with piping system failures.
This standard establishes clear guidelines for qualified inspectors, defines the scope and frequency of inspections, and outlines repair protocols. It also emphasizes the importance of documentation, requiring thorough records of inspections, repairs, and alterations to enable traceability and informed decision-making regarding the lifecycle management of piping systems.