| 摘要 |
A valve for handling large volumes of water including an energy dissipating chamber. A valve is provided at the inlet to the chamber which includes a water deflecting surface causing the onrushing water to be deflected against the side walls of the energy dissipating chamber when the valve is open. A sleeve slidably contained on the deflecting member engages the end wall of the dissipating chamber when it is desired to block the flow of water. To open the valve the sleeve is moved downstream from the end wall presenting an unobstructed circular orifice forcing the water into a fan shape as it enters the energy dissipating chamber.
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