A needle valve is a type of valve having a small port and a threaded, needle-shaped plunger. It allows precise regulation of flow, although it is generally only capable of relatively low flow rates.
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“I believe no gentleman would like to have his family affairs neglected because his wife was filling her head with crotchets and pothooks, and who, because she understood a few scraps of Latin, valued that more than minding her needle or providing her husband’s dinner.”
—Sarah Fielding (1710–1768)
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