... ,DN100,DN150,DN200(3”,4“,5” 6“) RETARDING CHAMBER ,PRESSURE SWITCH ,WATER MOTOR GONE , 2.WORKING TEMPERATURE -40-+70c, 3.WORKING ... .14MP TO 0.16MPA 4. THIS PRODUCTS NOT INCLUDE SIGNAL VALVE , BUTWITH GAUGE , AND INSTRUCTION MANUAL OTHER TECHINICAL SIZE DIAMETERBOLTBOLT SIZEOVERALL ... .PRICE VADITLY : WITHIN 2 MONTH FROM OFFER DATE DELUGE ALARM VALVE