NDT for Pressure Equipment per PED 2014/68/EU

Specialist non-destructive testing and inspection for pressure equipment in compliance with the European Pressure Equipment Directive — from design verification to CE marking support.

Inspection of Pressure Equipment under the PED

The Pressure Equipment Directive 2014/68/EU (PED) is the cornerstone of European legislation governing the safety of pressure equipment. It applies to the design, manufacture and conformity assessment of pressure equipment and assemblies with a maximum allowable pressure exceeding 0.5 bar, encompassing pressure vessels, piping, boilers, heat exchangers, safety accessories and pressure accessories. Compliance with the PED is a mandatory legal requirement for placing pressure equipment on the European market, and non-destructive testing plays a central role in demonstrating that the essential safety requirements of the directive are met.

LCNDTEST, headquartered in Nivelles, Belgium, is a specialist provider of NDT services for pressure equipment manufacturers, fabricators and end-users throughout Belgium and across Europe. Our experienced inspection team understands the specific requirements of the PED and its harmonised standards — EN 13445 for unfired pressure vessels, EN 13480 for metallic industrial piping, EN 12952 and EN 12953 for boilers — and applies this knowledge to deliver inspections that satisfy both the directive requirements and the expectations of Notified Bodies, insurers and regulatory authorities.

From the verification of material certificates and welding qualifications through to the final visual inspection and pressure test, LCNDTEST provides the complete range of NDT services required at every stage of the PED conformity assessment process. Our goal is to help manufacturers achieve CE marking efficiently and with confidence, while ensuring that the pressure equipment entering service in Belgian and European industrial installations meets the highest standards of safety and quality.

Adapted Inspection Methods

The PED and its harmonised standards define specific requirements for non-destructive testing based on the equipment category (I to IV), the material group, the joint type and the extent of NDT specified by the design code. LCNDTEST provides all the NDT methods required for PED compliance, performed by technicians certified in accordance with EN ISO 9712.
  • Visual Testing (VT) as the mandatory baseline inspection of all pressure-retaining welds, verifying weld quality, dimensional conformity, surface condition and the absence of visible defects in accordance with EN ISO 17637
  • Radiographic Testing (RT) for volumetric inspection of butt welds on pressure-retaining shells, heads, nozzles and piping, using film or digital radiography in accordance with EN ISO 17636-1 and EN ISO 17636-2
  • Ultrasonic Testing (UT) including conventional, TOFD and Phased Array techniques for weld examination as an alternative or complement to radiographic testing, particularly for thick-walled components and materials where radiographic sensitivity is limited
  • Magnetic Particle Testing (MT) for the detection of surface and near-surface cracks on ferritic steel pressure components, nozzle welds, attachment welds and areas subject to high stress
  • Penetrant Testing (PT) for surface crack detection on austenitic stainless steel, duplex, nickel alloy and other non-ferromagnetic pressure equipment components
  • Hydrostatic and Pneumatic Pressure Testing as the mandatory proof test required by the PED before the equipment is placed in service, performed with calibrated instruments and comprehensive documentation
  • Positive Material Identification (PMI) to verify that the correct materials have been used in the construction of the pressure equipment, ensuring compliance with the material specifications in the design documentation
  • Hardness Testing and Ferrite Measurement on welds and heat-affected zones to verify post-weld heat treatment compliance and microstructural integrity, as required by the material and fabrication code

Standards and Regulations

All inspections performed by LCNDTEST on pressure equipment are carried out in strict compliance with the Pressure Equipment Directive 2014/68/EU and its harmonised standards. The applicable design and fabrication codes — EN 13445 (unfired pressure vessels), EN 13480 (metallic industrial piping), EN 12952 (water-tube boilers), EN 12953 (shell boilers) and ASME Section VIII — define the specific NDT requirements including the methods to be applied, the extent of examination, the acceptance criteria and the qualification requirements for inspection personnel. Welding procedures are qualified in accordance with EN ISO 15614, and welders are qualified in accordance with EN ISO 9606. Our comprehensive understanding of the regulatory framework ensures that every inspection we perform contributes to a smooth and successful conformity assessment process.

Frequently asked questions

Non-destructive testing is a fundamental element of the PED conformity assessment process. The directive requires that all pressure-retaining joints be subjected to appropriate non-destructive testing to verify their integrity. The specific NDT methods and extent of examination are defined by the harmonised design standard applicable to the equipment (e.g., EN 13445, EN 13480). For higher equipment categories (III and IV), the NDT requirements are more extensive, and the involvement of a Notified Body in reviewing the NDT results is mandatory. LCNDTEST performs all required NDT methods and provides the documented results needed for the technical file and the conformity assessment.

Yes, LCNDTEST provides end-to-end inspection support for pressure equipment manufacturers throughout Belgium and Europe. Our services cover material verification (PMI, material certificate review), welding qualification support (supervision of WPQR tests, NDT of test pieces), production weld inspection (VT, RT, UT, MT, PT as required), dimensional verification, pressure testing (hydrostatic and pneumatic), and final documentation review. We work closely with Notified Bodies and understand their expectations, helping manufacturers prepare for third-party assessments and resolve any non-conformities efficiently.

Under the PED, the requirement for Notified Body involvement depends on the equipment category and the selected conformity assessment module. Category I equipment can be self-certified by the manufacturer (Module A), with no mandatory third-party involvement. Categories II, III and IV require progressively greater Notified Body involvement, including review of the technical documentation, surveillance of the manufacturing process and, for Category IV, individual verification of each item of equipment. Regardless of the category, LCNDTEST provides the same high standard of NDT, ensuring that inspection results are robust, well-documented and ready for any level of third-party scrutiny.

Need a reliable inspection for your installations?

Our certified technicians respond promptly across all of Belgium. Contact us today for a customised quote and ensure the compliance of your equipment.