Everything you need to know about the inspection of pressure vessels

What is a pressure vessel inspection and why is it mandatory?

A pressure vessel inspection is a mandatory check that verifies the integrity, safety, and compliance of the vessel with legal requirements. Pressure vessels can be dangerous if not properly maintained, as defects may lead to leaks or explosions.

Why are pressure vessel inspections mandatory?

To prevent defective vessels from causing hazardous situations. Inspections are required under the Pressure Equipment Directive (PED 2014/68/EU) and additional national regulations outlined in the General Regulation for Labour Protection (ARAB). Regular inspections help detect and correct issues early.

Which pressure vessels require inspection?

• Pressure vessels operating at pressures above 0.5 bar

• Both stationary and mobile vessels

• Vessels used in industrial, technical, and medical applications

How does a pressure vessel inspection work?

An inspection is performed by a certified inspection body and involves several steps:

Preparation for inspection

• Review of technical documentation, including the manufacturing file and previous inspection reports

• Ensuring safe access to the pressure vessel and suitable working conditions

Visual inspection

• Examination of the inside and outside of the vessel for signs of wear, corrosion, or other defects

Non-destructive testing (NDT)

• Testing methods such as ultrasonic testing, X-rays, or magnetic inspection to assess structural integrity

Pressure testing

• Testing the vessel under elevated pressure to verify strength and leak tightness

Reporting and certification

• A detailed report of the findings is provided

• A certificate is issued if the vessel complies with all requirements

• If defects are found, recommendations for repair or maintenance are included

How often must pressure vessels be inspected?

For vessels where volume × pressure exceeds 3,000 litres × bar, an inspection is required every 5 years. These inspections must be carried out by a certified environmental expert.

Why choose Artion for your pressure vessel inspection?

At Artion, we offer:

• Complete peace of mind: Artion ensures timely inspections by one of our certified inspection partners

• Comprehensive reporting: Clear and transparent reports with recommendations, so you always know the status of your equipment

• Time savings: With Artion, you only need to act on certificates with comments or violations. ‘A-certificates’ require no action

• Focus on liability: Artion provides a clear overview of all installations that require action, helping you address them with the right priority and remain fully compliant

With Artion, you choose reliability, quality, and worry-free inspection management.

Frequently asked questions about pressure vessel inspections

Why is a pressure vessel inspection important?

It guarantees the safety and functionality of the vessel and helps prevent dangerous situations.

Who is authorised to inspect pressure vessels?

Only certified inspection bodies approved under current legislation may carry out pressure vessel inspections.

What happens if my pressure vessel doesn’t comply?

If a vessel fails the inspection, a repair recommendation will be issued. The vessel may not be used until the issue has been resolved and a new inspection has been completed.