• graphique d'en-tête - Offshore


Offshore areas are becoming more and more important for the use of energy sources, whether fossil or renewable. Around 25% of the world's proven oil reserves are believed to be in offshore deposits. With stricter climate targets, the use of wind and water for offshore energy generation is more in the focus, while the extraction of oil and gas is increasingly being shifted to the deep sea due to diminishing deposits.

For this purpose, offshore structures are used, including drilling rigs, production and research platforms and wind turbines. These are served by offshore vessels, e.g. transport and installation ships, cable-laying vessels or supply ships.

The type of drilling rig (e.g. platform, semi-submersible or tension leg) is selected depending on the environmental conditions, water depth and size of the oil field. Drill ships, on the other hand, have no connection to the seabed, but compensate for platform movements using dynamic positioning systems with thruster motors. At great depths, so-called subsea rigs are used, which rest on the seabed. They have a modular design and are linked to groups via cables.

In Germany, only one drilling and production platform, "Mittelplate", is currently in operation in the North German Wadden Sea.


Overview of offshore applications

Oil and gas extraction

  • Drilling platform
  • FPSO ship

Power generation

  • Marine wind park
  • Converter platform 
  • Hydrogen production

Hydrogen production at sea

New concepts deal with hydrogen production on offshore platforms. The PEM electrolyser for generating hydrogen is supplied with energy via offshore wind farms that are directly connected to the electrolysis platform. The fresh water required for the PEM electrolyser is obtained from seawater using a desalination plant. The hydrogen produced is then purified, dried, compressed and transported ashore by ship.


Valves in a highly corrosive atmosphere

Offshore platforms combine working and living areas for the crew and are often exposed to heavy weather in a highly corrosive maritime atmosphere. Various circuits, e.g. extinguishing systems or cooling water supply, are fed from seawater. Potentially explosive atmospheres (ATEX) often arise. Accordingly, the materials of the components used must be carefully selected and also meet the NORSOK standards of the Norwegian oil industry.


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  • Acceptance by ship classification societies
  • Materials resistant to corrosion and salt water
  • ATEX
Product features
  • Special material (can also be standard material such as steel according to the application)
  • Elastomers suitable for your medium
  • Bonnet available with leakage line connection and adjustment screw seal
  • Various connection possibilities (DIN, ANSI or JIS flanges, NPT, welding ends ...)
  • Compact design
  • Easy to maintain
  • Long operational lifespan
Casses-vide VV 34
Produits typiques
  • Adwen
  • Maersk
  • Statoil
  • Petrobras
  • Shell plc.
  • Wintershall
  • ConocoPhillips
  • Tennet
  • RWE Renewables
Application reports
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