What is the purpose of the wrench on the safety valve?
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The Ministry of Chemical Industry says that safety valves that release water vapor or air can be equipped with a wrench. I would like to ask what is the purpose of the wrench?
1# tuotuo518 Personally, I think steam and air safety valves are generally made of carbon steel. In order to prevent the safety valve from being able to jump normally after rusting, a wrench is provided. During shift handover, the safety valve is often pulled to prevent rust from causing the safety valve to not jump normally. If there is anything inappropriate, please ask an expert for advice.
It is used to release air by manually pulling it to prevent the safety valve from being blocked.
Used to manually open and release air, just in case! ~
Due to medium corrosion and other reasons, the sealing surface of the safety valve may stick together over time. Therefore, the wrench is designed to move the valve regularly to exhaust and check whether adhesion occurs.
It is used for manual experiments and can also check the flexibility of the safety valve to prevent rust.
6# hotel [/b It should not be to prevent medium corrosion. After all, wrenches are only used when steam and hot water are used, and wrenches are not used when discharging other corrosive media.
If the safety valve does not trip, you can use a wrench to force it open and open it quickly.
The safety valve wrench has two main functions:: 1. Check the flexibility of the safety valve disc. 2. Can be used for emergency pressure relief. When an open wrench is used, the medium will flow out from the wrench, but when a closed wrench is used, the medium will not flow out from the wrench. The safety valve with a wrench is only suitable for water vapor or air media.
That wrench is used to force the safety valve to trip.