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Origin of ball valve
Words nearby ball valve
Example sentences from the Web for ball valve
At o is a delivery valve, opening outwards, which is often a ball-valve but sometimes a flap-valve.
The ball-valve is supported by a suspension thread (T) from the roof of the bell (B).
Should the pressure increase, the bell (B) is raised and with it the ball-valve (V).
The communication between the train-pipe and the cylinder is controlled by a ball-valve, one form of which is shown in fig. 2.
When the pressure falls again, the ball-valve is lowered and more gas passes through.