rotary valve

Example Sentences

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The whole apparatus is actuated by compressed air from a tank, controlled by a rotary valve which creates the pulsating pressure.

From Time Magazine Archive

This allows air from the control cylinder "D" and control reservoir to flow through the release pipe "IV" and on to the automatic brake valve, where the port to which this pipe leads is blanked by the automatic rotary valve, which prevents the air leaving the control cylinder and reservoir, thus holding the locomotive brake applied while the train brakes are being released.

From Project Gutenberg

A. The automatic brake valve is of the rotary valve type and is the same valve as used with the E-T equipment.

From Project Gutenberg

A. Yes; as the air that operates this head comes through the automatic brake valve, and when the handle is moved beyond holding position, the port in the rotary valve seat, through which the air flows to chamber "d" is closed, thereby cutting out this head, leaving the compressor under the control of the maximum pressure head.

From Project Gutenberg

A. This may be caused by leakage past the rotary valve, defective body gasket, or leakage by the feed valve or its case gasket.

From Project Gutenberg