Hangzhou PRI-SAFETY Fire Technology Co., Ltd. is known as one of the most professional manufacturers and suppliers of various safety products in China. If the marine grade high-pressure water mist unit for ship engine room safety meets your requirement, welcome to buy quality equipment made in China here from our factory. Our factory will offer you one stop service and one year warranty.
NFPA STANDARD PUMP-TYPE WATER MIST FIRE SYSTEM
The high-pressure fine water mist fire extinguishing system uses a dedicated pump set to pressurize water to 10MPa or more, and then sprays it out through specially designed fine water mist nozzles. After coming into contact with the flame, these fine water mists rapidly vaporize, absorbing a large amount of heat and causing a sudden drop in the temperature of the burning material.
Meanwhile, the water vapor produced by vaporization will dilute the oxygen concentration and inhibit the combustion reaction. The fine water mist can also block heat radiation and prevent the spread of fire, thus achieving efficient fire suppression.
Water Mist Fire System is a Fixed Completely System, Designed with Water Mist tank, Nitrogen Gas Propellant Bottles, Pressure Regulator, Safety Valve, Nozzles, Detectors, Fire Alarm, Control Panel, etc. The System can be activated by detectors automatically, and also by hand.
A water mist system is a fire protection system which uses very fine water sprays (i.e. water mist). The small water droplets allow the water mist to control, suppress or extinguish fires by:
Cooling both the flame and surrounding gases by evaporation
Displacing oxygen by evaporation
Attenuating radiant heat by the small droplets themselves
The effectiveness of a water mist system in fire suppression depends on its spray characteristics, which include the droplet size distribution, flux density
and spray dynamics, with respect to the fire scenario, such as the shielding of the fuel, fire size and ventilation conditions.
Advantages
1) Product Advantages
The use of water mist fire suppression, when compared to the use of gaseous agents and traditional sprinkler systems, has revealed advantages such as:
Immediate activation
High efficiency in the suppression of a wide variety of fires
Minimized water damage
Environmentally sound characteristics
No toxic problems
So really high pressure system, specialized tubing or piping that's used for that. Now, there are differences between water mist systems and the droplet sizes that they produce, so typically the smaller the water droplet size the better it is at extinguishing a hot fire. Larger droplets can work faster on lower temperature fires, but they all work for the systems that they're approved for or listed for.
Water Mist Fire System are generally used in conjunction with fire detectors, fire alarm fire extinguishing controllers, emergency start/stop buttons, sound and light alarms, deflation indicators and other fire fighting equipment. When a fire occurs in the protection area, the temperature and smoke detectors will send out a fire signal. After the logic analysis of the automatic fire alarm and extinguishing controller, it will send out a sound and light composite alarm signal, and at the same time send out a linkage command to turn off the linkage equipment. After a delay time, a fire extinguishing command is issued, the solenoid valve driver is opened, the container valve is opened, the fire extinguishing agent is released, and the fire is extinguished; if the duty officer discovers a fire, he can press the emergency start button outside the protective area door to implement the fire extinguishing operation ; There is also a manual button on the solenoid valve driver, and mechanical emergency manual operation can also be used to extinguish fire in an emergency.
Pump control cabinet
The control cabinet of the high-pressure water mist pump unit is composed of star-delta controller, programmable controller, sensor, control circuit, and cabinet.
1. Voltage: AC 380V
2. Digital display screen can show pressure of pump outlet and liquid level of water tank
3. The working status indicator light can display the working status of each pump,main and backup power supply, etc;
4. Adopting PLC control, stable and reliable, with strong anti-interference ability;
5. Equipped with a dual power switch, which can be connected to two power sources to ensure reliable system use;
6. There are manual start and stop buttons on the control cabinet panel of the pump unit, which can perform on-site start and stop operations on the pump unit;
7. The pump control cabinet is equipped with emergency start and emergency stop buttons, which can complete pump operation with one click
NOZZLES key technologies
Open Type
The open water mist nozzle is made of austenitic stainless steel and consists of a shell, a nozzle, etc. Its core component is a
plurality of centrifugal nozzles installed on the conical surface of the shell.
The atomization mechanism is to utilize the rotating liquid produced by the swirling parts in the nozzle to accelerate and eject
the hollow diffusion cone-shaped liquid film through the outlet channel, and use the speed difference between the liquid and the
outside air to break up and atomize.While on stand-by, our system boasts dry piping for maximum efficiency. Activation can be
achieved manually or through the sensors that detect heat, smoke, or flames - tailored to your specific needs.
Our nozzles are thoughtfully grouped in sections, so upon activation, all nozzles within the selected section will be released for
optimal fire suppression.
Closed Type nozzle
The closed water mist nozzle is made of austenitic stainless steel and consists of a shell, a nozzle, a temperature-sensitive glass ball, etc. Its core component is a plurality of centrifugal nozzles installed on the conical surface of the shell. The atomization mechanism is to utilize the rotating liquid produced by the swirling parts in the nozzle to accelerate and eject the hollow diffusion cone-shaped liquid film through the outlet channel, and use the speed difference between the liquid and the outside air to break up and atomize.
While in standby mode, our system maintains a pipe pressure of approximately 12 bar. Once the temperature surpasses 57°C, the heat-sensitive glass bulbs integrated into the nozzle heads will begin to melt. As a result, the high-pressure pump will be automatically activated, forcing water through high-pressure nozzles (60 or 100 bar, depending on nozzle type) to produce a fine mist. Only those nozzles with melted bulbs will activate, ensuring that only the affected area is actively sprayed.
Control Valve Cabinet&Accessories
Design Drawing
We provide one-stop fire suppression solutions.
Our professional engineers will provide the most suitable solution for you based on NFPA standard, Please send us your project drawings, and we will provide you with water mist system hydraulic calculation, cost of installing water mist system per square meter calculations together with piping layout and pump type, calculate sheet, as well as CAD drawings.
Client Installation Example
Product Application
The fine water mist fire extinguishing system is widely used in various scenarios, including but not limited to
Computer Rooms, Data Centers, Archives, Libraries, Generator, Transformer, Electric Room
Engery Storage Container(Battery Room) Medical Device Room, Others Important Equipment Storage Places.
These places often store high-value equipment and materials, and once a fire occurs, the consequences can be unimaginable.
Therefore, using a fine water mist fire extinguishing system can quickly extinguish the fire source in the early stages of a fire and
protect important assets.High efficiency in the suppression of a wide variety of fires
1. Data centers and computer rooms: For data centers and computer rooms that store a large number of precision electronic devices, traditional fire extinguishing methods may cause damage to the equipment. The high-pressure fine water mist fire extinguishing system can not only quickly put out fires but also will not cause secondary damage to the equipment, ensuring data security and business continuity.
2. Transportation hubs: Airports, railway stations, subway stations and other transportation hubs have large Spaces and frequent personnel flow. This system can precisely extinguish fires in different zones, respond quickly to fire situations, and reduce the impact of fires on traffic order.
3. Cultural ancient buildings: When protecting ancient buildings, the high-pressure fine water mist fire extinguishing system, with its environmentally friendly and low-loss features, can effectively put out fires without damaging the original cultural relics, thus safeguarding historical and cultural heritages.
4. Industrial sites: Such as petrochemical, power, pharmaceutical and other industrial fields, in the face of complex environments with flammable, explosive and high temperatures, the system can provide protection for local key areas, effectively controlling the spread of fire.
PRI-SAFETY was established in 2016, specializes in the design, manufacture of automatic fire suppression systems and advanced fire
fighting equipment, national high-tech enterprise.
The main products are automatic fire suppression systems for vehicles and mechanical equipment, kitchen fire suppression system,
FM200 / Novec1230 total flooding systems, water mist fire system, foam sprinkler mist fire systems, and mobile compressed air foam
equipment. The products are used in mining, petrochemical,transportation, electric power, industry, construction and other fields. Since 2005, PRI-SAFETY has been OEM various automatic fire extinguishing systems for engineering, vehicles and industrial equipment for European and American customers. After more than ten years of technology accumulation, it has formed perfect and reliable system products. At present, our products have been exported to more than 40 countries and regions.
1. who are we?
We are based in Zhejiang, China, start from 2009,sell to South America(20.00%),Africa(15.00%),Mid East(15.00%),North
America(10.00%),Southeast Asia(10.00%),Western Europe(10.00%),Central America(10.00%),Southern Europe(10.00%). There are total
about 11-50 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
FM200 Fire System for Electrical Devices, Vehicle Automatic Fire System, Kitchen Automatic Fire System, CAFS Fire System,
Automatic Fire Tube, Stainless Steel Fire Extinguisher, Water Mist Fire System.
4. why should you buy from us not from other suppliers?
One Stop Fire Fighting Equipment supply and professional service. We have CE, EN671, EN1869 certificates. Mainly export to Europe,
Middle east, South America, Africa,etc.
5. what services can we provide?
Accepted Delivery Terms: FOB, CFR, CIF, EXW, Express Delivery;
Accepted Payment Currency: USD, CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,Western Union,Cash;