balanced valve

American  

noun

1. a valve designed so that pressure-induced forces from the fluid being controlled oppose one another so that resistance to opening and closing the valve is negligible.

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Etymology

Origin of balanced valve

First recorded in 1930–35

Example Sentences

Among them were a flying ship, an air blower, punching press, trip hammer, pocket lamp, pocket chair, fog whistle, wire cutter, engine lathe, clothes drier, grain weigher, camera obscura, spring pistol, engine cut off, balanced valve, revolvidal boat, rotary plow, reaction wind wheel, portable house, paint mill, water lifter, odometer, thermo engine, rotary engine, and scores of other inventions.”

From Scientific American

A balanced valve is one in which means are employed to relieve the back of the valve of the steam pressure, and thus prevent its being forced to its seat with unnecessary pressure.

From Project Gutenberg

This engine has a balanced valve and automatic cut-off, and is fitted with a reversing-gear for use on the road.

From Project Gutenberg

Double-Ported Balanced Valve.—A valve of this type has already been shown in Fig.

From Project Gutenberg

This operates the spindle S, which, in turn, partially closes the balanced valve in body B, thus cutting down the steam supply delivered to the engine.

From Project Gutenberg