ZSFM type diaphragm deluge alarm valve

The diaphragm type deluge alarm valve provides two alarm methods:
Mechanical method, that is, the water flow is used to push the hydraulic alarm bell to alarm
Electrical control method, the electrical signal sent by the pressure switch makes the electrical alarm The device issues an alarm. The deluge alarm system is a fire extinguishing system consisting of a deluge alarm valve, a detection control system and necessary valves, pipe fittings, pipes and pressure gauges.
After the control cabinet sends a signal to open the solenoid valve, it still requires a continuous electrical signal to keep the solenoid valve open. The solenoid valve cannot be closed until it receives a closing signal. When the solenoid valve on the control pipeline is closed, the water pressure in the diaphragm chamber (control chamber) of the deluge valve is maintained to prevent the deluge valve from opening. When the solenoid valve receives a command to open, the diaphragm chamber (control chamber) causes the deluge valve to open through pressure relief.
Specifications and performance of type diaphragm deluge alarm valve
Nominal diameter



Rated working pressure

Not less than.

Water supply pressure range

.～.

Sealing test pressure

.

Alarm port pressure

=.

Product trial standards

B. "Automatic sprinkler system part: rain Deluge alarm valve》


Description of diaphragm type deluge alarm valve
Deluge valve is used to control water flow and act as an alarm in the deluge valve system and pre-action system. device. That is, when a fire occurs, the control system opens the diaphragm, allows water to flow into the system pipe network to extinguish the fire, and causes the hydraulic alarm to sound.
The water pressure in the diaphragm chamber (control chamber) on the deluge valve controls the opening or closing of the diaphragm. When the water pressure in the control room is equal to the water supply pressure, the diaphragm is closed and water cannot enter the system side. When the water pressure there is lower than the water supply pressure, the diaphragm is pushed open by the water supply pressure and water flows into the system side to spray water to extinguish the fire.
The pressure in the diaphragm chamber (control chamber) is controlled by a detection system installed in the protection zone. This detection system is also the driving system of the deluge valve diaphragm. This system is divided into electric control, pneumatic control or Hydraulic control.
The deluge alarm valve system is equipped with open sprinklers on the system side pipe network and is supplied with water by the deluge valve.
Main appearance and connection dimensions of type diaphragm deluge alarm valve
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