lock hopper

lock hopper

A feeding device that incorporates a double pressure seal, thus enabling solids to be fed into a system with a higher pressure than the pressure existing in the solid’s storage area. Also, a letdown device that incorporates a double pressure seal, thus enabling solids to be withdrawn from a system with a higher pressure than that existing downstream of the lock hopper.

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Part of Speech: noun
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Industry/Domain: Fire safety
Category: Prevention & protection
Company: NFPA
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