Overview
EN ISO 15547-2:2005 (ISO 15547-2:2005) covers requirements and recommendations for brazed aluminium plate‑fin heat exchangers used in the petroleum, petrochemical and natural gas industries. It is Part 2 of ISO 15547 (Part 1 covers plate‑and‑frame exchangers) and deals specifically with mechanical design, materials selection, fabrication, inspection, testing and preparation for shipment of brazed aluminium plate‑fin units. The standard is published by CEN as an endorsed European Standard (EN ISO 15547-2:2005).
Key topics and requirements
- Scope and definitions
- Defines plate‑fin heat exchangers (alternating layers of corrugated fins and parting sheets forming a brazed core) and key terms such as heat transfer area.
- Design codes and purchaser requirements
- Requires the purchaser to specify the pressure design code and structural welding code (examples in the text include ASME Section VIII and EN 13445).
- Vendor must comply with specified local regulations and identify any registration or special design needs (e.g., mercury‑tolerant designs).
- Proposal and documentation
- Vendor must provide completed data sheets, operating limits, exceptions, and indicate first‑time use of designs/components.
- Drawings and manufacturing data
- General arrangement drawings, materials lists, supports, nozzles/connections, allowable loads, mass/center of gravity, fin types, and torquing/lifting instructions.
- Where specified, welding procedure specifications, brazing procedures and calculations must be furnished.
- Materials, fabrication and inspection
- Requirements and recommendations for material selection, brazing practices, fabrication quality, inspection and pressure testing.
- Testing and shipment
- Inspection and testing protocols and preparation for shipment to ensure integrity in transit and on site.
- Annexes
- Annex A: recommended practice; Annex B: plate‑fin checklist; Annex C: data sheet templates.
Practical applications
- Ensures reliable specification, procurement and manufacture of brazed aluminium plate‑fin heat exchangers for:
- Air coolers and finned core exchangers in gas processing and refining
- High‑efficiency compact heat exchangers where aluminium brazed cores are preferred
- Helps projects meet safety, performance and regulatory requirements during design, fabrication, inspection and commissioning.
Who should use this standard
- Heat exchanger vendors and manufacturers
- Mechanical and process engineers in oil, gas and petrochemical projects
- Procurement and project managers specifying equipment
- Inspection, QA/QC and certification bodies
- Designers assessing material compatibility (e.g., mercury tolerance)
Related standards
- ISO 15547-1 (plate-and-frame heat exchangers)
- Pressure vessel and welding codes (e.g., ASME Section VIII, EN 13445) referenced within the standard
Keywords: brazed aluminium plate‑fin heat exchangers, EN ISO 15547-2:2005, ISO 15547-2, plate‑type heat exchangers, petrochemical heat exchangers, design code, brazing procedures, heat exchanger inspection.