This series of diaphragm deluge valve is composed of main valve, hydraulic alarm bell, pressure opening valve, ball valve, solenoid valve, needle valve, anti reset controller, pilot valve and control pipeline. Equipped with open nozzle, water curtain nozzle and fire alarm control system, it can form corresponding fire alarm control system. The system has the characteristics of simple structure, easy operation, safe and reliable, convenient installation and maintenance. When there is a fire, the deluge valve is opened, and the open sprinklers of the system can automatically spray water together to extinguish the fire, which can not only extinguish the fire source at the fire, but also automatically spray water on the whole protected area at the same time to prevent the spread and expansion of the fire. It is suitable for buildings and sites with high fire risk and easy freezing or key protection.

1. It can be opened automatically and manually: that is, the automatic solenoid valve can be opened, the manual manual close open or the manual ball valve can be opened far away from the fire source.
2. With anti reset automatic locking mechanism: the main valve is equipped with an anti reset controller. Even if the solenoid valve or manual ball valve is closed due to misoperation in case of fire, the main valve is always in the open state to release the pressure in the control chamber of the main valve.
3. Long service life: the main valve diaphragm adopts imported high-strength reinforced nylon rubber, the diaphragm can operate more than 1 million times without fatigue damage, making the main valve action sensitive and reliable. Other accessories are made of high performance materials.

1. Design and manufacturing standard: JB / t10674-2006
2. Connecting flange standard: JB / t78-1994 JB / t79-1994
3. Structural length standard: GB / t12221-2005
4. Test and experiment standard: JB / t9092-1999

Nominal pressure（MPa）	Experimental pressure（MPa）		working temperature	Applicable media
	housing	seal up
1.0	1.5	1.1	≤80℃	水

Part name	Valve body and cover	Disc	Stem	seal ring	Spring	Diaphragm and pressure plate
texture of material	Cast iron, cast steel	cast steel	stainless steel	Butadiene rubber NBR	stainless steel	Reinforced nylon rubber and cast steel

DN	L	H1	H2
50	203	270	255
65	216	340	285
80	241	400	305
100	292	440	320
125	330	460	360
150	394	470	415
200	457	590	500
250	533	660	585
300	610	765	685
350	686	870	760
400	762	990	875
450	864	1065	925
500	914	1270	1065
600	1067	1465	1235