API 510 is a vital standard for the oil and gas sector, as it lays out the guidelines for the examination, maintenance, modification, and re-evaluation of pressure vessels. Since pressure vessels are an essential element of many oil and gas activities, inadequate upkeep could lead to accidents, injuries, and substantial financial losses. By adhering to API 510, the risk of failures and mishaps is minimized. In this article, we will take a closer look at what API 510 is along with its scope, and what it takes to become API 510 certified.

What Is API 510 – Pressure Vessel Inspector?

API 510 is a Pressure Vessel Inspection Code that focuses on enhancing the operational safety of pressure vessels and pressure-relieving devices such as shell and tube heat exchanger. The latest update, 11th edition of API 510, helps ensure the important equipment remains in good condition and safe to use.

The standard covers topics such as the safe operating limits for pressure vessels, the qualifications of API 510 inspectors, and the requirements for inspection, repair, alteration, and rerating of pressure vessels. Additionally, API 510 outlines the requirements for maintaining records related to pressure vessels.

The API 510 standard is designed to be used by professionals, such as engineers and inspectors, who are responsible for the upkeep and functioning of pressure vessels in the chemical and petroleum sectors.

It encompasses different types of vessels, ranging from those constructed with carbon steel, low alloy steel, and stainless steel, to non-metallic vessels. By following the API 510 standard, your companies can help ensure the safe and reliable operation of their pressure vessels, reduce the risk of accidents and downtime, and comply with regulatory requirements.

What Are The Scope and Limitation of API 510?

This standard for inspection is applicable to all chemical and hydrocarbon process vessels that are in operation unless they have been specifically excluded, as stated in section 1.2.2. However, at the discretion of the owner/user, this code can also be applied to process vessels in other industries. The vessels covered by this standard include those that have been constructed in accordance with relevant construction codes (e.g. ASME Boiler and Pressure Vessel Code),

  1. Those that have been constructed without a construction code
  2. Those that have been constructed and approved as jurisdictional special,
  3. Nonstandard vessels – which are vessels fabricated according to a recognized construction code but without a nameplate or stamping.
  4. Noncode vessel that has been constructed without adhering to a recognized construction code and does not meet any known recognized standard.

api 510 pressure vessel inspector - oil and gas training by petrosync

How Do I Qualify for API 510?

API 510 also offers a certification program for individuals involved in pressure vessel inspection, repair, alteration, and re-rating. It aims to certify you with a background in welding, fabrication, or inspection especially if you wish to demonstrate your competency in pressure vessel inspection.

The certification exam covers various topics, including pressure vessel design, testing, inspection methods, non-destructive examination techniques, repair, and alteration procedures. However, referring to the minimum qualification before enrolling in API 510 examination is a must. Below are the criteria specified by API for obtaining the API 510 pressure vessel inspector certification program.

Parameter Years of Industry


Experience Required
BS or higher in engineering or technology


3+ years of military service in a technical role

(Dishonorable discharge disqualifies credit)

1 year Overseeing or carrying out inspection tasks in accordance with the guidelines outlined in API 510.
2-year Associate’s degree or certificate in engineering or technology


2 years of military service in a technical role

(Dishonorable discharge disqualifies credit)

2 years Experience in the design, fabrication, repair, operation, or inspection of pressure vessels with at least one year of overseeing or performing inspections in accordance with the specifications outlined in API 510.
High school diploma or equivalent 3 years At least one year of experience in overseeing or carrying out inspection duties related to pressure vessels, as well as experience in designing, constructing, repairing, and operating such vessels.
No formal education 5 or more years Experience in designing, fabricating, repairing, operating, or inspecting pressure vessels, with at least one year of experience in supervising or performing inspection tasks as outlined in the API 510 guidelines.


Starting with the fact that the worldwide use and recognition of the API 510 signifies its effectiveness in ensuring high levels of efficiency and safety, we craft our API 510 Pressure Vessel Inspector Training Course to help you prepare for the Piping Inspector Certification Program. Pressure vessel systems are crucial assets in the process industry.

Any organization that understands the importance of maintaining authorized inspection agencies and technically examines their qualified engineers and inspectors to make sure their facilities are at top performance.

Obtaining API 510 certification is highly desirable, as it enables you to actively contribute to improving industry and environmental health and safety performance, reinforcing management control, and complying with inspection capabilities.

With PetroSync’s expert instructor, Mr. Chintamani is involved in facilities inspection, along with his practical coaching and mentoring approaches, making this course an excellent preparation for the API 510 examination.

It also enhances your appreciation of pressure vessel facilities, broadening your technical knowledge to prevent unplanned shutdowns and reduce expenses. Join us and enhance your inspection of pressure vessel systems skills with PetroSync!

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