One of the most demanding operating spaces on earth is the ocean. It is the case for all industries. From constant unpredictable waves and weather, to high exposure to salt and moisture. Piping systems are heavily exposed to factors out in the sea. Hence, they need adequate protection mechanisms.
At the heart of this attempt at protection lies the lateral expansion joint. These are specialized components. These make way for continuous movement that absorbs factors arising from the seawater. Offshore platforms witness perpetual movement. The lateral joints are built to tackle exactly this. Onshore facilities have pipes that remain relatively stable; hence the challenges are lower. Wave displacement can move pipes by over a foot when it’s at maximum tide. The consequences can lead to extreme fatigue and even failure of the entire system. How, then, do expansion joints make it better?
How to Tackle Wave-Induced Movement of Pipes?
Wondering how the best lateral expansion bellow works under such phenomenal situations? This article explains to you in brief all the ways these joints work to tackle such harsh conditions.
1. Material
The material chosen has to be exceptional. This is due to the harsh conditions these bellows will have to go through. The saltwater causes corrosion that actively attacks standard materials. Besides this, extreme temperatures from Arctic waters worsen this ordeal. Marine-grade stainless steel, like the 316L or alloys, makes for the perfect lateral expansion joint. They have superior resistance against corrosion. The main question, however, is how to select the elastomer? These critical components have to come into contact with hydrocarbons, high temperatures, and even UV radiation. Viton or special EPDM is used in such critical cases. The ultimate choice depends on the end of exposure that the elastic material has to go through. This depends on the kind of ocean area exposure.
2. Design
It is not only about the lateral movement. These joints have to consider multiple factors to sustain. Forces from the constant wind, dynamic loading through wave impact. Sometimes, even supply vessels and their contact with these components. All of these factors are paramount in the predictive analysis. They go into the design of the lateral expansion joint. Many designs incorporate components such as tie rods and stops that limit their movement beyond a certain point. Sometimes an external cover is added. This protects the bellows from fishing nets or water debris. Further, drain ports prevent flooding of the components.
Conclusion
These are the guardians of offshore oil platforms. The problems only rise with higher depth and heavier components. All these are finely tackled by the best lateral expansion joint. Your one-stop expert for the most sought-after expansion products is Flexpert Bellows. Your personal lateral expansion expert.