What is priming in boiler?

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Asked on June 13, 2021
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Priming is the rapid carryover of large amount of water in steam as it leaves the boiler. It occurs due to -

1. Excessive foaming
2. Improper amount of steam space
3. By a sudden rush of steam such as is produced when steam stop valve is suddenly opened.

To prevent priming, water level should not be kept too high. Steam stop valve should be opened slowly.

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Posted by seawizard
Answered on June 13, 2021