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Understanding ISO 15547-1 for Plate Heat Exchangers
ISO 15547-1:2005 specifies requirements for plate-and-frame heat exchangers in petroleum, petrochemical and natural gas services—covering mechanical design, materials, fabrication, inspection, testing, and shipment. It applies to gasketed, semi-welded, and welded PHEs.
At-a-Glance
Area | What to Specify |
Design conditions | Design/MAWP, min/max design temperature, corrosion allowance |
Materials | Plate alloy, gasket elastomer, frame/coating |
Inspection & testing | Hydrotest basis, visual/NDE as applicable, documentation pack |
Deliverables | Drawings, nameplate data, MTRs, test certificates (per ISO 15547-1 clauses) |
Who needs it
EPCs, owners, and OEMs when projects reference ISO frameworks or when international specifications require ISO language for PHE procurement.
Why it matters
Using ISO terminology in RFQs/datasheets reduces ambiguity, aligns QA/ITP expectations, and simplifies factory/site acceptance.
Buyer checklist
Topic | Details |
Scope | LLHE performance rating & definitions |
Outputs | Certified selection reports and nameplate/marking data |
Certification note | AHRI Certified statements appear on selection software outputs for in-scope units. |
FAQ
Is ISO 15547-1 interchangeable with API 662 Part 1?
In practice they’re closely aligned; many purchasers accept either if the project spec permits. Always follow contract language.
