Metal constructions

Boiler construction and steel structures

Industrial pipes are only a small part of your installation. In addition, you will probably need pressure vessels, storage tanks, skids and other metal structures. Our experienced designers and welders can also take care of this. In this way, we provide a total solution. Flexibility is our greatest asset here. We can respond quickly and precisely to your specific requirements.

Bespoke metal constructions

Nopek is your partner for the design and production of metal constructions. We deliver high-quality work to companies from various sectors. Thanks to this customisation, we can optimally meet your needs – no matter how complex they may be. We have a solution for every project.

For this we have our own designers and engineers. Production takes place in our own workshop (prefabrication) or in your company. You can also count on Nopek for the maintenance of the metal constructions.

We always work in accordance with the applicable standards, with great attention to detail and attention to safety. Your metal construction project is therefore in good hands with us.


pipe rack piping


Nopek builds metal constructions for various sectors, such as:

Water treatment

Why choose Nopek?

  • Welding according to EN 1090
  • Welding qualifications for TIG, MIG and electrode
  • VCA-P certified
  • Internal study service
  • Experienced team of engineers, welders, pipefitters and mechanics
  • One-piece or series work possible

Nopek is VCA-P certified and certified according to the EN1090-2 standard.


Frequently asked questions about metal constructions

Find answers to frequently asked questions. Do you have a question about our industrial pipelines that is not listed here? Contact us via

Simple drawings can be delivered in 2D in .dxf, .dwg or .pdf

More complex drawings are available in 3D in Solidworks, .step, .iges or similar.

If you do not have a drawing for the metal construction, we can always design it for you in 2D or 3D.

We offer the following mechanical processing operations on steel, stainless steel and aluminium:

  • CNC bending
  • CNC plasma cutting
  • Rolling of sheet metal
  • Rolling of profiles
  • Turning and milling
  • MIG/MAG welding
  • TIG welding

Bends or reducers can be produced as single pieces or in series.

Yes, with our own study service we are able to make and process the 3D scans as well as design many different projects, both for piping and industrial construction applications.

At Nopek you can go for both small and very large constructions or other projects in the metal industry.

The lead time depends on the size of the project. Urgent repairs can be carried out within a few hours. Large projects can take several weeks or months to complete.

Yes, Nopek has an audited quality system that allows us to produce metal structures with CE label for building applications. This is currently possible up to and including execution class 2. To serve you even better in the future, Nopek is in the process of obtaining the exc. class 3 certificate.

Nopek has years of experience in manufacturing various lifting devices such as monorails and lifting beams. This always comes with a complete technical file and inspection report according to the Machinery Directive 2006/42/EC. The production of industrial stairs and landings with a technical file is also no problem.

Nopek’s great strength has always been its flexibility and its extensive ability to produce customised products. All customised metal constructions are possible. In consultation with the customer, we will always look for a technically and economically optimal solution to realise the customised work within an acceptable time frame for the customer.

Over the past 7 years, Nopek has actively participated in all major telecom projects in Belgium, the Netherlands and Germany. Steel produced at Nopek was used to update telecom sites for 3G, 4G and 5G masts. We have a large database of plans for standard solutions but we are also the ideal partner for customised solutions. Our strength is our flexibility, precision and on-time delivery.

Nopek can offer various metal construction finishes, both indoors and outdoors at one of our long-standing partners. The following finishes are commonly offered:

  • Galvanisation
  • Pickling and passivation
  • Chromating
  • Wet painting
  • Powder coating
  • Sandblasting
  • Electro-polishing

Nopek is certified for construction work in accordance with EN 1090-2 to EXC2.

In addition, Nopek also has a safety management system according to VCA-P (VCA Petrochemical Certificate).

Nopek also has the know-how to carry out pressure vessels and installation piping according to the PED legislation and to carry out NDT inspections in its own workshop.


Nopek has an electronic material certificate management: for each delivery, certificates are requested, compared with the received material and electronically stored.

In the further production process, the material is fully traceable thanks to the over-stamping of the used materials by means of plasma engraving or pin engraving.

We have an internal safety management and quality control system. Our welds can be controlled in various ways (in-house or through close cooperation with external partners):

  • Visual examination
  • Penetrante controle (penetrant test of kleurstofcontrole)
  • Hydrotest or water pressure test
  • Tape test
  • Roughness value measurement
  • Ultrasonic control
  • Magnetic testing
  • Radiological control (X-ray)
  • TOFD (time of flight diffraction)
  • Heliumtest