ASME BPE

Covers — hygienic (sanitary) design, materials, surface finish, fabrication (automatic orbital welding), examination/testing, and certification for bioprocessing and pharmaceutical equipment and process piping, including cleanability and CIP/SIP considerations.

Does NOT cover (exclusions) — the following are governed elsewhere:

• Pressure design and general process piping → ASME B31.3.
• Welding procedure/welder qualification → ASME Section IX.
• Sanitary tubing material → ASTM A269/A270 and BPE material requirements.

BPE adds hygienic/cleanability requirements on top of B31.3 pressure design and Section IX welding.

BPE sets hygienic requirements for bioprocessing systems:

• Hygienic Design — crevice-free, drainable geometry (slope), and dead-leg limits.
• Surface Finish — controlled internal Ra and electropolish for cleanability.
• Fabrication — automatic orbital welding with weld acceptance criteria for sanitary service.
• Materials & Traceability — sanitary materials with documented traceability and certification.

ASME BPE is the hygienic-design standard for bioprocessing and pharmaceutical equipment and piping. Beyond the pressure design of B31.3 and the welding of Section IX, it adds the cleanability requirements essential to prevent product contamination: crevice-free, self-draining layouts, controlled surface finish (Ra limits and electropolish), automatic orbital welding with sanitary weld-acceptance criteria, and documented material traceability.

It supports clean-in-place (CIP) and steam-in-place (SIP) operation, making the difference between a mechanically sound line and one that is actually cleanable and validatable for GMP production.

Engineering Note: Dead legs and unfinished welds are the enemy in bioprocess piping — a line that passes a B31.3 pressure test can still fail BPE if it cannot be fully drained, cleaned, and sterilized, so design for cleanability from the layout stage.