washout plug
noun1
A small mudhole used for washing out a steam boiler, usually screwed into a taper thread, rather than being held by clamps.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
noun
A small mudhole used for washing out a steam boiler, usually screwed into a taper thread, rather than being held by clamps.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
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