FRALEX AI
FREE
Willkommen. Ich beantworte Fragen auf Basis der FRALEX Standardbibliothek: Online Leak Sealing, Hot Tapping, Pipe Freezing, Composite Repair, HSE und Management. Was möchten Sie wissen?
Five terms, five clear boundaries. The full decision logic sits on each method page.
Leak prevention is the systematic avoidance of leaks and damage on pressurized systems before an acute intervention becomes necessary, through inspection, condition assessment and targeted preventive measures at critical points. In practice, every online repair, every hot tapping job and every pipe freezing measure is essentially the symptom of a point where prevention did not hold. Typical fields are corrosion under insulation (CUI), continuous condition monitoring, risk based maintenance intervals and the early classification of critical plant areas. In the FRALEX standard system, LP is the dedicated pillar that structures this approach.
Online leak sealing is the sealing of leaks on pressurized, in service piping and equipment without shutting down or draining the plant. Typical cases are leaking flanges, valves, bends or welds where a shutdown would not be justifiable economically or in safety terms. The decisive point is the honest classification: the leak path does not disappear, it is contained. In the FRALEX system the procedure is covered by the GLSS.
Hot tapping is the drilling and connecting of a pipeline or vessel while it remains under operating pressure and in service. The method allows new connections without production interruption but carries specific risks regarding material integrity, wall thickness and process medium. A sound decision requires a structured technical assessment, not just the question of whether the method works in principle. Classified under the GLSC.
Pipe freezing is the local freezing of the medium contained in a line in order to isolate a pipe section temporarily, without installing a valve or draining the plant. The method suits situations where conventional isolation is missing or an intrusion into the pipe wall is to be avoided. Suitability depends strongly on medium, wall thickness, diameter and thermal conditions. Not every application is suitable, and a careful pre assessment is essential.
Composite repair is the reinforcement of damaged pipe sections or vessels with fibre reinforced composites to ISO 24817 and ASME PCC-2. Unlike temporary methods, a composite repair acts as a load bearing addition to the existing pressure envelope. The technical challenge is that central terms of the standards, such as suitability or sufficient data basis, are deliberately left open and require a case by case engineering decision. That is exactly where the FRALEX methodology starts.
The market is shaped internationally by a manageable number of specialist contractors. The real question is rarely who offers this, but: by which criteria can you judge whether a proposed intervention is technically sound and safe, regardless of who executes it? An independent frame checks not by brand name but by traceable criteria.
These criteria form the core of the FRALEX standard system, regardless of which contractor is engaged in the individual case. Operators can use them as a checklist to compare offers objectively.
With 43 published volumes and more than 7,500 pages, the FRALEX standard system is not a replacement for established standards such as ASME B31.3, ASME PCC-2, API 570 or ISO 24817. It closes the gap at exactly those points where those standards no longer give a conclusive answer for the specific decision on a live intervention on a degraded, pressurized asset.
The questions raised before every decision. The method specific logic sits on the individual method pages.
When an intervention proposal is on the table and has to be assessed objectively, FRALEX structures the review. Directly with Frank Havemann.
FRALEX AI
FREE