| 摘要 |
A water control supply system (10) has a first inlet (12), a second inlet (14), and an outlet (16). The first inlet (12) is connected to a mains supply while the second Inlet (14) is connected to a water tank via a pump. The system (10) also has a first hydraulic valve (18) and a second hydraulic valve (20). The first valve (18) is arranged to open and close a first fluid flow path (22) (depicted by dash line). The fluid flow path (22) is a flow path for mains water at the first inlet (12) to the outlet (16). The valve (20) is arranged to open and close a second flow path (24) (depicted by a dot line) from the second Inlet (14) to the outlet (16). The valve (20) also operates a bleed valve (74) that controls the operation of the valve (18). When the valve (20) opens it operate the bleed valve (74) to effectively close the valve (18). |
