监督干式报警阀压力开闭地行动旌旗灯号。
Monitors the wet warning valve pressure switch's operation signal.
本文主要论述了水力报警阀的工作原理及其应用。
This paper discusses work principle of the valve giving an alarm by waterpower and its application.
ZSFL预作用装置是在本公司生产的雨淋报警阀出水口上端配接一套同规格的湿式报警阀构成的预作用报警装置。
The ZSFL Pre-action Alarm System is made by equipping the top of the outlet of the deluge alarm valve with a wet-type alarm valve of the same size.
ZSFL预作用装置是在本公司生产的雨淋报警阀出水口上端配接一套同规格的湿式报警阀构成的预作用报警装置。
The ZSFL Pre-action Alarm System is made by equipping the top of the outlet of the deluge alarm valve with a wet-type alarm valve of the same size.
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