Diaphragm closure
Pronal diaphragms closure are flexible inflatable jacks. These jacks are installed in the legs of offshore platforms and assist the buoyancy of the fixed platform, while also maintaining its center of gravity when it is installed at sea.
In addition, they are used in many applications such as :
- jacket buoyancy
- mud barrier
- pile floating
Made from high resistance rubber coated fabric and assembled by hot vulcanisation, our diaphragms closure are designed to take into account :
- leg ID
- Thickness of the leg
- Water depth
Finally, a steel insert is vulcanized into the rubber diaphragm creating a perfect tightness to the Leg. there is no risk for the rubber diaphragm separating from the flanges.
Our teams can travel on-site to install your offshore buoyancy kits no matter where you are located.
Avantages
Reliabilty
- Tightness testing can be implemented before installation
- Penetration testing can also be performed
- Simulation & calculation of the force required to puncture the diaphragm
Safety
- Air and watertight
- Insert integrated into the rubber
- Selection of suitable materials
Handling
- Locking fixation system
- Suitable for applications at depth
- Ease of installation
Informations détaillées
- Material: Synthétic 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
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