| 摘要 |
<p>A valve device for self-watering of livestock is disclosed, comprising a valve (14) with a valve housing (30) located in frost-free surroundings, e.g. in a subterranean well (4), and comprising a sliding valve body (44) arranged to open by actuation of an animal for discharging water through an outlet opening (18) which is provided with a delivery tube (20) discharging into a drinking bowl (10) or nozzle disposed at a level convenient for the animal above the ground, where said valve body (44) is arranged to close for discharge of water through the said outlet opening (18) under subjection of the water pressure in an inlet opening (36), where the said valve body (44) is arranged to be remote controlled from the said drinking bowl (10) or nozzle, and where said valve (14) is so arranged that the delivery tube (20) and the valve housing (30) are automatically emptied of water when the valve (14) is closed, i.e. when only the valve body (44) is subjected to the water pressure.</p> |
