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Quotes - Engineering - SalesU-Tube Heat Exchangers For
API 660, PED and Canadian CRN
U-Tube Duty
API 660. The American Petroleum Institute standard for shell and tube heat exchangers in refinery service, layered on top of ASME and TEMA. It adds requirements on design detail, material selection, fabrication, inspection and documentation, and it reflects refinery operating experience.
PED. The European Pressure Equipment Directive governs equipment placed on the market in the EU. Conformity assessment, CE marking and a notified body where the category requires it. An ASME-stamped vessel is not automatically PED compliant; the assessment is separate.
Plan for schedule, not just cost. Of the three, CRN most often delays delivery, because registration can only proceed at the pace of the provincial authority. Raise it at enquiry rather than at order.
Request a QuoteAPI 660, PED and Canadian CRN Applications
Confirm Whether You Actually Need API 660
API 660 appears in specifications well outside refining, sometimes because a specification was copied from a refinery project. It adds real cost and schedule.
Where the site is genuinely a refinery or petrochemical facility with an API-based standard, it is appropriate. Where the intent is simply robust construction, TEMA Class R frequently satisfies that intent for considerably less.
Selection Data We Need
Flow rate and identity of both fluids, inlet and required outlet temperatures, operating and design pressures, allowable pressure drop on each side, and any code, alloy or hygienic requirement. Fouling history, turndown range and cleaning method matter as much as the design point.
