Leak-tight flange connections are essential for safety, environmental protection, and regulatory compliance. In Germany, meeting the requirements of TA Luft is mandatory for many industries, especially in the chemical, petrochemical, and process engineering sectors.
There are three recognized approaches for providing a leakage proof, the so-called three-pillar model. Among them, calculation according to EN 1591-1 is the most widely used and efficient method.
The Three Pillars of TA Luft Compliance
- Calculation According to EN 1591-1
A standardized engineering method that evaluates both the mechanical integrity and tightness of a flange joint under real operating conditions. It requires certified gasket parameters according to EN 13555, is fully accepted by authorities, and is fast, cost-efficient, and non-destructive. - Finite Element Method (FEM) Analysis
A detailed numerical simulation that can model complex geometries, uneven load distributions, and non-standard operating conditions. Often used for special designs or when EN 1591-1 is not applicable. - Full-Scale Component Testing
A physical test of the complete flange assembly under actual operating conditions. Highly accurate but time-consuming and costly, typically reserved for special cases or final validation.
Why EN 1591-1 is the Preferred Option
Among these three approaches, EN 1591-1 is by far the most practical and widely recognized. It mathematically proves your flange will remain tight under actual operating conditions using your real technical data and delivers regulator-approved documentation without the cost or delays of physical testing. When paired with certified EN 13555 gasket parameters, it ensures full TA Luft compliance and peace of mind.
What this means for you
Meeting TA Luft requirements now falls directly under your responsibility, and EN 1591-1 makes it simple.
📝 You must provide your own leakage proof for flange connections
📊 EN 1591-1 replaces costly physical testing with precise, recognized calculations
🛡 Standards-based design keeps your plant leak-free and compliant
How Revoseal Europe GmbH Supports You
✅ Expert advice on TA Luft requirements and the EN 1591-1 process
✅ Accurate calculations using certified EN 13555 gasket parameters
✅ No destructive testing, saving you time and budget!
✅ Full documentation ready for audits and regulatory submission
