首先，确定让水位上升的砖头或者马桶清洁装置没有挡到阀门，让它不能正确关闭；然后清除挡水阀座周围的矿质沉淀物，检查连在挡水阀的拉管是不是太短，有没有把挡水阀拉得有轻微缝隙。
This includes removing any mineral deposits around the seat beneath the valve. Also check that the pull chain attached to the valve is not too short and holding the valve slightly open.
当整个蓄压装置在排放时阀门保持在开启状态，然后才关闭。
The valve remains open as the integral accumulator is charged and then closes.
所有阀门都配置开启和关闭锁定装置。这种锁定装置与执行器全面匹配，能够在锁定状态下与执行器一起拆卸。
All valves are furnished with open and closed lockouts. The lockouts are full actuator rated and allow actuator removal while it is in the locked position.
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