Hygiene Rules Change the Design
Food and pharmaceutical plants vent warm, often humid exhaust. The heat is recoverable, but regulations forbid recirculating exhaust into supply air.
Isolated Plate Recovery
An isolated plate air-to-air exchanger transfers energy through a solid wall with zero mixing. Exhaust and supply streams stay physically separate, satisfying the no-recirculation rule used in cleanroom and laboratory designs.
Selection Rules
- Use plate, sensible exchangers, never a rotary wheel that could carry contaminants.
- Sanitary, cleanable plate surfaces simplify washdown.
- Keep exhaust fully separated from any air that reaches product or people.
With the right isolated plate unit, food and pharma plants cut heating and make-up air loads while staying compliant and audit-ready.