top feed

noun

In locomotive boilers, a feed water check valve placed on the top of the boiler drum. This encourages rapid mixing of the cold feedwater with the hot steam, reducing the risk of thermal shock to the heated parts of the boiler.

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Meanings

nountop feed (plural top feeds)

plural top feeds

  1. In locomotive boilers, a feed water check valve placed on the top of the boiler drum. This encourages rapid mixing of the cold feedwater with the hot steam, reducing the risk of thermal shock to the heated parts of the boiler.
Cite this entry
APA

top feed. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/top%20feed

MLA

“top feed.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/top%20feed. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “top feed,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/top%20feed.

Source: top feed on Wiktionary, CC BY-SA 4.0.