Water flow indicator | full name of fuel flow wf

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1. Who can help me translate this "automatic sprinkler fire extinguishing system"? 8. Installation of alarm valve group In eight, the alarm valve group 1. The installation of the alarm valve group should first install the water source control valve and alarm valve, and then connect the auxiliary pipeline of the alarm valve. The connection between the water source control valve, alarm valve, and distribution main pipe should be damaged to ensure that the water flow direction is consistent. The installation position of the alarm valve group should meet the design requirements; When there are no design requirements, the alarm valve group should be installed in a prominent position for easy operation, with a height of 1.2m above the indoor floor; the distance between the two sides and the wall should not be less than 0.5m; the distance between the front and the wall should not be less than 1.2m; and there should be drainage facilities on the indoor floor. 1 alarm valve installation should be first installed water control valve, alarm valve, and then be alarm valve auxiliary pipe connection. Water control valve, alarm valve and water distribution pipe connection, should make the water flow direction. Alarm valve installation should comply with the design requirements; when the design of a request, alarm valve should be installed in to facilitate the operation of the apparent position of indoor floor height, distance should be 1.2m; two sides of the wall distance shall not be less than 0.5m; the front wall and the distance of not less than 1.2m; Indoor ground drainage facilities. 2. The installation of accessories for alarm valve groups should meet the following requirements: alarm valve group attachment installation should comply with the following requirements:(1) The pressure gauge should be installed on the alarm valve in a position that is easy to observe; ( 1) pressure gauges should be installed in the alarm valve is convenient for observing the location; (2) Drainage pipes and test valves should be installed in positions that are easy to operate; ( 2) drainage tube and the test valve should be installed in convenient location; (3) The installation of water source control valves should be easy to operate, and there should be clear opening and closing signs and reliable locking facilities. ( 3) water control valve installation should be easy to operate, and have obvious open closed sign and reliable locking facilities.3． The installation of wet alarm valve group should meet the following requirements: wet alarm valve group installation should comply with the following requirements:(1) The pipeline before and after the alarm valve should be filled with water smoothly; When the pressure fluctuates, the hydraulic alarm bell should not give a false alarm; ( 1) should make alarm valve and pipeline can be filled with water; pressure fluctuation, hydraulic alarm should not produce false alarm; (2) The filter on the He Road where the alarm water flows should be installed in front of the delay device and in a location that is convenient for slag discharge operation. ( 2) the alarm flow channel on the filter should be installed in the delay before, and is convenient to discharge the operation position. 9、 In nine, the other components to install 1. The hydraulic alarm bell should be installed on the outer wall near the public passage or duty room, and valves for maintenance and testing should be installed. The connection between the hydr

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