USED IN DELUGE ALARM SYSTEM 4.PARTS AND SPECIFICATION 1.PARTS DELUGE ALARM VAVLE SIZE DN 80,DN125,DN100,DN150,DN200(3”,4“,5” 6“) RETARDING CHAMBER ,PRESSURE SWITCH ,WATER MOTOR GONE , 2.WORKING TEMPERATURE -40-+70c, 3.WORKING PRESSURE 0.14MP TO 0.16MPA 4. THIS PRODUCTS NOT INCLUDE SIGNAL VALVE , BUTWITH GAUGE , AND INSTRUCTION MANUAL OTHER TECHINICAL SIZE DIAMETERBOLTBOLT SIZEOVERALL SIZE FLANGED ...