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EN 1591-4:2013 Flanges and their joints

Qualification of personnel competency in the assembly of the bolted connections of critical service pressurized systems

Published on 31st August 2013 this European Standard applies to all personnel who dismantle, assemble and tighten bolted joints on pressurised systems in critical service.

Modular training matrices are detailed within this standard and an evaluation process to determine competence in to include:

  1. Foundation Level (Manual torque tightening)
  2. Hydraulic tension tightening
  3. Hydraulic torque tightening
  4. Heat exchangers & pressure vessels
  5. Flanges made of brittle materials
  6. Bolt load measurement
  7. Compact flanges
  8. Clamp connectors
  9. Special connectors
  10. Small bore tubing connections
  11. Responsible Engineer

Hydratight’s ASME PCC-1 Appendix A training modules are mapped and aligned with EN 1591-4, detailed within our Lesson Plan “P-TRA-21023” and summarised within the table below.

ASME PCC-1 EN 1591-4
Training of Fundamentals 1 - Foundation Level
Powered Equipment Supplemental Qualification 2 - Hydraulic Tension Tightening
3 - Hydraulic Torque Tightening
Heat Exchanger Supplemental Qualification 4 - Heat Exchangers & Pressure Vessels
Special Joint Supplemental Qualification 7 - Compact Flanges
8 - Clamp Connectors

Note: Individuals who complete ASME PCC-1 training via Hydratight can apply for equivalent dual EN 1591-4 certification relevant to the training unit attended.

EN 1591-4:2013 Flanges and their joints

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