A horizontal tray deaerator mounted on a storage tank highlights the HEI‑compliant design, which prevents unrated water from contacting carbon steel, and shows how the tray stack creates a thin water film for effective counter‑flow steam contact. The hold‑down system keeps trays securely in place without special tools, preventing tray upset. The video also covers the first‑stage spray distribution, the importance of engineered spray valve arrangements, and how unwanted gases are vented as clean, deaerated water flows into the storage tank, achieving oxygen levels as low as 7 ppb.
