Word forms: (regular plural) seal legs
(Chemical Engineering: Operations, Gas-solid operations) A seal leg is an open pipe which contains particles that gas cannot leak through. ▶ seal
⇒ This seal leg allows material to pass while preventing the escape of combustible gases. ⇒ The seal leg consists of a vertical pipe containing a downward-moving packed bed of particles
which offers relatively high resistance to any counterflow of gas. ⇒ A seal leg is an open pipe which contains particles that gas cannot leak through.
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