Become a qualified underwater welder
Hyperbaric wet welding training with DNV personnel certification, qualified to EN ISO 15618-1 or AWS D3.6M — at a professional dive-training campus on the waterfront in Enkhuizen, the Netherlands.
DNV personnel certification
The Lasinstituut is authorised under the DNV flag to act independently as assessor and examiner.
European & American standards
Welder qualification to EN ISO 15618-1, or AWS D3.6M — other recognised standards on request.
21 m basin, adjustable to the cm
The movable floor of our dive basin sets steplessly to any depth between the surface and 21 metres — centimetre-accurate.
Qualify in 5 days
A compact, dedicated qualification track for certified professional divers — theory, basin practice and the qualification test in one week.
Depth is a variable. Ours is adjustable
Train and qualify to 21 metres depth
In underwater welding, water depth is a decisive qualification variable. Under EN ISO 15618-1 or AWS D3.6M, the qualification test must be carried out under appropriate hyperbaric conditions. The valid depth range is determined by the welding procedure specification (WPS) applied and the limits of the relevant standard.
That is why our 21-metre dive basin has a movable floor that can be set steplessly and precisely — from the water surface down to a depth of 21 metres.
This lets underwater welders train specifically and take their qualification test at a depth that matches the work to be carried out — for example at 2, 8 or 18 metres.
Train and qualify under realistic conditions, at the depth your project requires:
- Stepless adjustment from the water surface to 21 metres depth
- Movable floor, adjustable to the centimetre
- LARS crane directly above the dive basin
- Repeat the same exercise at increasing depths, within a single training day
Start here
Training & qualification
5-day qualification track and 11-day extended track: admission requirements, programme, prices and how to book.
Welding on pipelines: which qualifications at which depth?
The honest, complete map — welder qualification, procedure qualification, pipeline codes and class witnessing, from 10 to 100+ metres.
The standards, explained
EN ISO 15618-1 & -2, ISO 15614-9 & -10, AWS D3.6M classes A/B/O, LK & LMK, and what “class approved” really means.
Wet vs dry hyperbaric welding
What each method is, where each is used, and why depth changes everything.
For employers & contractors
Qualify your dive crew: group bookings, welder (LK) and welding-method (LMK) qualifications, oil & gas and offshore support.
International students
Taught in English, 45 minutes from Amsterdam. Entry requirements, travel and accommodation.
A joint venture of two specialists
The Hyperbaric Welding Center combines the professional diving facilities and training expertise of BC-opleidingen — ISO 9001-certified and an IMCA member — with the specialist welding expertise of the Lasinstituut.
This means the center meets a clear need in the Dutch and European training landscape for underwater welders. The programmes combine professional diving, hands-on welding training and qualification under realistic underwater conditions.
Welder qualifications are conducted under DNV oversight, ensuring an independent, internationally recognised assessment of competence.
About us →Recognised by the industry
IMCA member
BC-opleidingen, the diving partner behind the Hyperbaric Welding Center, is a member of IMCA — the International Marine Contractors Association. Its training and diving operations follow internationally recognised industry guidance.
Visit imca-int.com →
Qualification under DNV oversight
Welder qualification tests at the Hyperbaric Welding Center are conducted under the oversight of DNV, the international classification society. The Lasinstituut is an authorised DNV examiner, so your qualification is independently and internationally recognised.
Visit dnv.com →Ready to qualify?
Course dates, available places and registration are handled by the Hyperbaric Welding Center. Questions about the admission requirements, the diving certificate you need, the welder qualification, or the options for a company-focused programme? Feel free to contact us by phone or email.