In-Service Inspection
Professional API 570 piping inspection services
API 570 Piping Inspection
Professional in-service inspection, repair, alteration, and rerating of process piping systems following API 570 standards. Our certified team delivers expert piping inspection services.
What is API 570?
API 570 is the American Petroleum Institute's Piping Inspection Code. It covers the in-service inspection, repair, alteration, and rerating of process piping systems used in the petroleum, chemical, and other industrial facilities. Our experienced professionals specialize in these critical systems.
It ensures that piping systems remain safe, efficient, and compliant throughout their operating life. API 570 works in conjunction with NDT methods to provide comprehensive integrity assessment.
Key Scope of API 570
Comprehensive standards covering all aspects of piping system integrity and safety
Inspection Requirements
Visual external inspections – At defined intervals, based on service, corrosion, and risk assessment.
Thickness measurements – To track corrosion and predict remaining life.
In-service inspections – Routine checks during operation.
Piping Evaluation
Corrosion rate calculations.
Remaining service life assessments.
Fitness-for-service evaluations.
Repairs & Alterations
Weld repairs and replacements.
Modifications for rerating or changes in service.
Use of approved materials and procedures.
Rerating & Certification
Establishing new maximum allowable working pressures (MAWP).
Adjusting temperature or service conditions.
Must be performed by an API 570 certified piping inspector.
Why It Matters
API 570 compliance is essential for safe, reliable, and legally compliant piping operations
Process Safety
Prevents leaks, failures, and accidents in industrial piping systems.
Regulatory Compliance
Maintains compliance with industry regulations and standards.
Extended Service Life
Extends the service life of piping systems through proper maintenance.
Reduced Downtime
Reduces downtime and costly repairs through early detection.
Frequently Asked Questions
Common questions about API 570 services
API 570 applies to metallic piping systems used in petroleum refineries, chemical plants, and related processing facilities. This includes piping carrying hydrocarbons, chemicals, steam, and other process fluids, but excludes piping systems covered by other codes like ASME B31.1 for power piping.
Inspection intervals depend on the piping class, service conditions, and corrosion rates. Generally, visual external inspections are required every 5 years, while thickness monitoring may be needed every 5-10 years. High-risk piping may require more frequent inspections, while low-risk systems may have extended intervals.
Many API 570 repairs can be performed using hot tapping, freeze plugging, or other techniques that allow localized repairs without full system shutdown. However, the specific repair method depends on the pipe size, pressure, temperature, and fluid being transported. A qualified API 570 inspector must approve the repair method.
API 570 inspectors must pass the API 570 certification exam and meet experience requirements. They need knowledge of piping systems, materials, corrosion mechanisms, inspection techniques, and relevant codes and standards. Recertification is required every three years to maintain active status.
Rerating is required when piping conditions change due to corrosion, mechanical damage, or service changes that affect the maximum allowable working pressure (MAWP). Rerating calculations must consider current wall thickness, operating conditions, and stress levels to ensure continued safe operation.
Need Professional API 570 Services?
Our certified API 570 professionals use advanced techniques to ensure your assets remain safe, reliable, and compliant without interrupting operations. Discover our commitment to safety excellence and connect with our experts.