Diaphragm on offshore platformDiaphragm on offshore platform

Rip-out diaphragms

The rubber Rip-out diaphragms, equipped with a cruciform piercing tool, provide different functions:

  • buoyancy assistance for large platforms equipped with metal floatation tanks,
  • corrosion protection for electrical outlet cables.

Our teams can travel on-site to install your offshore buoyancy kits no matter where you are located! A complete removable of all rubber parts version is also available.



  • Tightness testing can be implemented before installation
  • Penetration and rip-diameter testing can also be performed
  • Simulation and calculation of the force required to puncture the diaphragm


  • Air and water tight
  • Suitable for applications at depth
  • Ease of installation


  • Locking fixation system
  • Insert integrated into the rubber
  • Selection of suitable materials

Detailed information

  • Material: Synthetic Rubber
  • Technique: hot vulcanization in a vacuum autoclave
  • Dimensions: min. 6″ (152.4 mm) / 118″ (max. 2997.2 mm)
  • Form: cylindrical
  • Temperature resistance: +0 / +60°C
  • Max. thickness: defined by the clients’ specifications
  • Grade of steel: defined by the clients’ specifications

You can not find your dimensions

Our design department employs the best project leaders and designers and will be pleased to develop and create a tailor-made product specially for your unique project.


Composition / Advice

Storage advice
Store in its original case away from light, damp, and temperature variations.

Standards / regulations

Please contact us
In accordance with the conditions of the Pronal guarantee


Fact Sheets / Business Guides
  • This field is for validation purposes and should be left unchanged.


Metal flange, screws, and gussets
Nous utilisons des cookies pour vous permettre de visiter et d'utiliser notre site. Certains cookies sont nécessaires à son fonctionnement et ne peuvent pas être désactivés. D'autres cookies de collecte de données nous aident à améliorer la pertinence de notre contenu. Ces cookies ne sont activés que si vous consentez à leur utilisation en cliquant ci-dessous. En savoir plus
Ces cookies permettent de suivre le parcours utilisateur, le passage sur un site pour une évaluation et une stratégie marketing.
Ces cookies permettent d'obtenir des statistiques de fréquentation anonymes du site afin d'optimiser son ergonomie, sa navigation et ses contenus.
Tout refuser