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【Daily Question No. 185】July 4, 2019

2019-07-04View Original

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【Daily Question No. 185】July 4, 2019: When the pressure difference before and after the quick shut-off valve is high and makes it difficult to open the valve, it is necessary to increase the air pressure. True or False ( ) Please reply within two days.
Reply #22019-07-04
Error: The quick shut-off valve sometimes fails to open due to a large pressure difference across it resulting from being closed for an extended period of time. It is possible to manually turn the valve slightly open, and then switch it to automatic mode.

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