When working normally, the high-pressure water mist fire extinguishing system maintains a certain pressure from the outlet of the pump unit to the pipe network in front of the nozzle. After the glass bubble temperature of the closed nozzle reaches the working temperature, the glass bubble breaks and the pipeline pressure decreases. When the starting pressure set by the pressure-stabilizing pump drops to the stable pump setting, when the pressure-stabilizing pump starts, the system pipe network maintains a stable pressure. After the pressure-stabilizing pump runs for more than a certain time, the pipe network pressure has not been reached, the main pump starts, and the constant pressure pump stops. When the host receives the feedback signal, the flow switch feedback system sprays the signal and turns on the spray indicator light in conjunction.

Usually, the closing valve is closed, but there is water before and after the valve. When a fire occurs, the high temperature will rupture the closed nozzle glass bubble. After the valve detects the pressure drop, an alarm signal is sent to the system, and the fire pump is linked to start the water supply.

Closed high-pressure water mist nozzle product features:

● Produced in strict accordance with water mist related standards;

● The working pressure of high-pressure water mist nozzle is ≧3.5Mpa;

● Shell material: stainless steel 304, 316, copper, etc.;

● 100% flow, fog, and seal production testing to confirm product quality;

● The closed nozzle adopts glass balls imported from Germany JOB Company;

● Design parameters and structural appearance can be customized to meet the application needs of various scenarios.

Closed high-pressure water mist nozzle temperature:

The working temperature of commonly used closed high-pressure water mist nozzles is: 57°C or 68°C

Using glass balls imported from Germany, the action response time is fast. The following are the relevant parameters of the glass balls:

Closed high-pressure water mist nozzle model parameters:

There are many types of commonly used closed high-pressure water mist nozzles, and customers can also provide drawings or nozzle-related parameters for customization according to their own needs. The following are commonly used models:

Application scenarios of closed high-pressure water mist nozzles:

Fine water mist nozzles are suitable for extinguishing combustible solid surface fires, combustible liquid fires and fires in some live equipment in relatively closed spaces. They are mainly used in

● Library fire fighting

● Fire fighting in archives

● Fire fighting in ancient buildings

● Subway fire fighting

● Cable tunnel fire fighting

● Fire fighting in the production workshop

● Oil-immersed transformer fire extinguishing

● Fire fighting in ancient buildings

● Boiler room fire fighting

● Firefighting in the generator room, etc.

Closed high pressure water mist nozzle price:

Unit price: 200 yuan/piece

Lanzhong Electromechanical has the ability to design and produce various forms of nozzles, and can customize the structural type, flow coefficient and material according to customer needs. We will quote based on the nozzle design and production difficulty as well as the order quantity. Large quantity will give you the best price. Welcome to buy!

Closed high-pressure water mist nozzle structure:

There are three common structural forms of closed high-pressure water mist nozzles: A series, B series and C series. Among them, A series is a closed ordinary frame, that is, the nozzle is embedded; B series is a closed protruding hole, that is, the nozzle is protruding; C series is a closed direct-fire frame.