货梯一般都是高空作业，危险性极高，每台浙江货梯都设置手动泄压阀，原因其实是为了预防货梯如果在升起的状态出现意外情况，比如意外的停电了，或者升降按钮失灵了，导致货梯不能下降。
Zhejiang freight elevators are generally high-altitude operations, the risk is very high, each Zhejiang freight elevators are set manual pressure relief valve, the fact that, in order to prevent Zhejiang freight elevators in the event of unforeseen circumstances raised state, such as an unexpected power outage, or lift button failure, resulting in Zhejiang freight elevators can not fall.

我们在货梯的控制系统上设计了手动泄压阀，一旦出现意外情况，可以拧一下这个泄压阀，货梯就会下降，然后把泄压阀再拧紧，或者会导致货梯不能升起。为了保证升降平台不发生意外，在使用货梯进行加工的时候，确保设置手动泄压阀，且无任何故障。
We designed the Zhejiang freight elevator control system manual pressure relief valve, in the event of unforeseen circumstances, you can squeeze about this pressure relief valve, Zhejiang freight elevator will drop, and then re-tighten the pressure relief valve, or may not lead to rising freight elevators Zhejiang . In order to ensure the lifting platform is not an accident, in the use of the freight elevator Zhejiang processing time, be sure to set a manual pressure relief valve, and without any fault.