Difference between protection valve and ordinary valve

Scope of use, function.

1, scope of use: protective valves used in civil air defense projects. Ordinary valves are used in factories and mines.

2. Function: The protective valve can cut off contact with the outside world during air raid, and prevent shock waves and nuclear, chemical and biological warfare agents from entering the project from the pipeline. Ordinary valves are used to prevent gas or other areas that are easy to burn and explode.

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