Shanghai Dent Valve Co., Ltd.

< The key component in the water mist fire extinguishing system is another new type of special valve designed for industrial fire protection and civil fire protection systems. The deluge water control valve consists of an upper cavity, a lower cavity, a valve seat, a piston rod, a guide cone, etc. It is especially suitable for industrial firefighting: water spray, water spray foam linkage fire extinguishing systems.
< Deluge water control valve < has the characteristics of high working pressure, rapid start-up, small friction loss, stable and reliable operation, and anti-accidental spray function. Compared with the general deluge valve: it has a non-electronic remote control (remote cycle) opening and closing function, which can prevent the process cycle opening and closing of the deluge water control valve when the electronic control fails or cannot reach the site for startup. The noise water cone function design can eliminate the water cone noise when the valve is opened and closed under pressure. According to different installation and use occasions, it has a manual/automatic control cycle opening and closing function.
The company's Bonate deluge water control valves are divided into high-strength ductile iron series and austenitic stainless steel series products based on the main product materials. < Working principle:
< When the closed detection sprinkler in the deluge water control valve controls the movement of the sprinkler or the monitoring device in the system detects a fire alarm signal, the control center issues an action instruction to the deluge water control valve. When the closed detection nozzle moves or receives a system action command, the pressure in the control chamber in the deluge water control valve seat is released. As the pressure in the control chamber in the valve seat drops sharply, the piston rod in the deluge water control valve overcomes the The resistance of the spring moves downward, opening the deluge water control valve to supply water to the system side. At the same time, it drives the hydraulic alarm bell to send out a bell alarm, and makes the pressure switch act to send an alarm signal to the control center.
Decompression process of the deluge water control valve: When the cycle opening and closing device (manual start, non-electronic remote control, solenoid valve) or closed detection nozzle connected to the deluge water control valve, any of these facilities The opening action causes the pressure water in the valve seat control chamber to be discharged. The pressure water entering the valve seat control chamber is restricted by the throttle hole on the piston rod. The pressure relief speed of the valve seat control chamber is much greater than the pressure inlet speed, and the pressure drops sharply. The pressure acting on the piston rod is unbalanced, and the piston rod moves downward to open the valve.

Dry non-electrical remote control device for deluge water control valve: (referred to as remote control device)

In order to overcome the non-electrical remote control pipe network of deluge water control valve To solve the freezing problem, the company has specially developed a dry non-electronic remote control device for deluge water control valves. Keep the control pipe network of non-electronic remote control devices in a dry state when on standby.
The remote control device consists of: remote control valve, remote start valve (ball valve), remote drain valve (ball valve), automatic drain valve and connecting pipelines.
The remote control device is used when the automatic and on-site activation fails and the deluge water control valve cannot be opened. Therefore, the remote control is required to have sufficient water pressure to drive the pressure relief valve. In order to ensure the reliable opening and closing of the deluge water control valve, the pressure loss along the way when entering the non-electronically controlled remote manual control pipeline shall not be greater than the rated water supply pressure.

Remote control cycle opening and closing function:

When the remote control valve is opened and the remote drainage ball valve is closed, the automatic drainage valve is closed by the pressure, and the pressure in the pipe network increases rapidly. The pressure relief valve is driven to open, and the control cavity in the valve seat of the deluge water control valve quickly releases pressure through the pressure relief valve, and the deluge water control valve opens. When the remote control valve is closed, the pressure relief valve is quickly closed due to the action of the spring in the valve when the driving pressure is lost. The pressure in the control chamber of the deluge water control valve rises rapidly, and the deluge water control valve closes. The automatic drainage valve installed in the remotely controlled pipe network will automatically drain away the remaining water to prevent the pipe network from freezing.
The above cyclic valve opening function can also be completed through manual ball valves and solenoid valves.
Connection dimensions:
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