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Sieve Tray

Sieve trays became a dominate tower internal for mass transfer columns in the 1950’s owing to their simple shape and ease of manufacture. This made sieve trays a popular device for extensive research and as a result, a considerable amount of experience has been gained for tray design and its application. Sieve trays are flat perforated plates in which vapour is forced through the holes into the cross flowing liquid. Vapour flow prevents liquid from leaking (weeping) through the holes. At low vapour velocities, liquid weeping through the holes occurs, which bypasses a portion of the tray active area and reduces efficiency, giving sieve trays relatively low turndown (approx. 2-2.5:1).


Saiptech has the capability to design and manufacture virtually any type of sieve tray. Tray hole sizes down to 3.2 mm and up to 16 mm in diameter are offered.



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