Valve and Airlock Selection for Pharmaceutical Powder Handling

Potent compounds require transfer without opening the enclosure, and ordinary valves break containment at exactly the moment the connection is made or released.

Shared equipment adds the cross-contamination question, which is answered by cleaning validation rather than by design intent.

A valve with a documented containment performance for the compound band, a validated cleaning procedure and full material traceability.

Split butterfly valves join two halves so that the product-contact faces mate before the passage opens, which keeps the exposed surface out of the room.

Where containment is not the driver, the questions become cleanability, crevice-free geometry and whether the valve can be dismantled without tools.

Every valve in this environment carries documentation: material certificates, surface finish records and the cleaning validation that applies to it.

• Containment performance measured for the compound band, not assumed.
• Surface finish and geometry that the cleaning procedure can reach.
• Complete documentation set available before qualification.

• Occupational exposure band of the compound and the required containment level.
• Cleaning method and the validation approach, including swab locations.
• Product contact materials and their certificates.
• Whether the valve is used across products and what that means for changeover.
• Dust explosion characteristics, which still apply to pharmaceutical powders.