| 摘要 |
The flow-adjusting device comprises: a housing ( 2 ) having an inlet channel ( 4 ) and an outlet channel ( 5 ) to be connected with respective pipes ( 6 ) through which a liquid is caused to flow, a closure assembly ( 7 ) arranged in the housing ( 2 ) between the inlet and outlet channels ( 4, 5 ) for drivingly adjusting the flow of the liquid, and a deformable diaphragm ( 3 ), deformation of which takes place in proportion to the liquid pressure in the outlet channel ( 5 ) and which is active on the closure assembly ( 7 ). The device also comprises a hollow body ( 15 ) internally bounding a storage chamber ( 16 ) disposed between the inlet and the outlet channels ( 4, 5 ), the storage chamber ( 16 ) having a lower portion ( 16 a) to be engaged by the liquid and an upper portion ( 16 b) defining an air-tight region wherein air under pressure is stored under the effect of increasing pressure of the liquid and causes recirculation of the liquid on decreasing of the liquid pressure.
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