| 摘要 |
A water conserving refill valve for a reservoir connected to a pressurized water supply. The valve includes a hollow body divided by a diaphragm into a first and second chamber and a hollow plunger extending through the diaphragm between the chambers. The first chamber communicates with the reservoir through a port and the second chamber selectively communicates with the reservoir through a relief valve. The plunger closes communication between the liquid supply and the first chamber while providing communication between the supply and the second chamber in a first position. In a second position, the plunger provides communication between the supply and the first chamber. The plunger is biased to the first position by a float lever. The reservoir includes a flush valve operated by a movable lever and the relief valve is connected to the movable lever to be opened when the flush valve is opened. When the relief valve is opened, the liquid pressure in the second chamber acting on the diaphragm is reduced causing the plunger to move to the second position. As the reservoir refills, the float lever biases the plunger to the first position where it is maintained by increased pressure in the second chamber.
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