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Fire sprinklers are an indispensable part of the fire safety system and play a vital role in fire prevention and control. As a device that can be activated automatically or manually, a fire sprinkler can spray water evenly onto the fire source to extinguish the fire or control the spread of the fire.
There are many types of fire sprinklers. According to different application scenarios and working principles, they can be divided into closed sprinklers, open sprinklers and other types. Under normal circumstances, the water spout of a closed sprinkler head is blocked by a heat-sensitive element. When the ambient temperature reaches the preset value, the heat-sensitive element will rupture, causing the sprinkler head to automatically open to spray water. The open sprinkler head is usually linked to the automatic fire alarm system. Once the alarm signal is received, the sprinkler head will immediately start spraying water.
The water spray performance of fire sprinklers directly affects the fire extinguishing effect. High-quality fire sprinklers can start quickly in a very short time and spray water evenly with a certain pressure to form an effective fire-extinguishing coverage area. At the same time, the design of the sprinkler head also needs to consider the range and angle of the water spray to ensure that the fire source can be covered to the greatest extent when a fire occurs, thereby effectively curbing the spread of the fire.
As a professional fire extinguishing device, the importance of fire sprinklers in fire prevention and control cannot be ignored. Our products come in various types to meet the needs of different scenarios. Whether it is a closed nozzle or an open nozzle, it undergoes strict quality control to ensure its performance is stable and reliable.

About Us
Ningbo Kaituo Valve Co., Ltd.
Ningbo Kaituo Valve Co., Ltd., also known as Ningbo Anke Fire Equipment Co., Ltd., is a young and dynamic factory specializing in the research and development, production and export of fire equipment. It owns the anke brand and a number of national high-tech patents.
Founded in 2001, our company is China Fire Sprinklers Factory and Custom Fire Sprinklers Manufacturers, which mainly provides high-quality fire protection products for the international market, specializing in the production of various types of fire extinguisher accessories, marine gas cylinder valves, gas valves, etc. After years of hard work and continuous improvement of process reform, our products are exported to dozens of countries around the world and have won a good international reputation. All of our products have obtained the EU EN, CE certification in 2007.
Welcome all customers to call and visit us. Our company has a professional sales team to provide accurate services.
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Fire Sprinklers Industry knowledge

Basic principles of Fire Sprinklers
Fire sprinkler systems are a key component of modern building fire safety systems. They are designed to respond quickly to fires through automation technology to effectively control and extinguish flames. With the continuous acceleration of urbanization and the gradual increase in building heights, the risk of fire has increased significantly, making the application of fire sprinkler systems particularly important.
Composition of fire sprinkler systems
Fire sprinkler systems usually consist of several important components to ensure their efficient operation in the event of a fire:
Water source: The water source of the system may include municipal water supply, reservoirs or dedicated fire water tanks. These water sources must be able to provide sufficient water volume to meet the needs of the sprinkler system in the event of a fire.
Pipeline system: Pipes are responsible for transporting water from the water source to the sprinkler heads, and are usually made of high temperature and corrosion resistant materials to ensure reliability and durability under extreme conditions.
Sprinklers: The sprinkler heads are the core components of the system, responsible for atomizing and evenly spraying water onto the fire source. Depending on the application requirements, there are many types of sprinklers, including glass bubble sprinklers, fuse sprinklers, etc., which can automatically open according to the set temperature and pressure conditions.
Valve: The function of the valve is to control the opening and closing of the water flow to ensure that water can be supplied quickly when a fire occurs, minimizing the losses caused by the fire.
Alarm device: Some fire sprinkler systems are equipped with fire alarm devices, which can promptly sound an alarm when a fire occurs, reminding personnel to evacuate effectively.
Working principle
The working principle of the fire sprinkler system is simple and efficient. When a fire occurs, the ambient temperature rises rapidly. When it reaches the temperature set by the sprinkler, the temperature sensing element (such as the glass bulb) in the sprinkler breaks or melts due to the principle of thermal expansion and contraction. This process opens the valve, and the water flows out quickly through the pipe, forming a water mist covering the fire source, effectively reducing the flame temperature and suppressing the spread of the fire.
The specific work flow is as follows:
Temperature monitoring: Under normal circumstances, the temperature sensing element in the sprinkler remains stable. When the ambient temperature reaches the set threshold (usually 68°C to 79°C), the temperature sensing element changes, triggering subsequent reactions.
Valve opening: As the temperature sensing element breaks, the valve opens and water begins to flow into the pipe.
Water flow spraying: Water is sprayed out through the nozzle at a certain pressure to form a mist water curtain, covering the fire source, reducing the flame temperature and inhibiting the spread of the fire.
Continuous water spraying: During the continuous stage of the fire, the system will continue to supply water until the fire is effectively controlled or extinguished.
The importance of Fire Sprinklers
In today's society, fire safety issues are increasingly attracting attention, especially in crowded and flammable and explosive environments such as high-rise buildings, commercial centers and industrial plants. Fires not only cause huge property losses, but also pose a serious threat to people's lives. Therefore, as a core component of modern building fire safety, the importance of fire sprinkler systems cannot be ignored. Ningbo Kaituo Valve Co., Ltd. focuses on the research and development and production of firefighting equipment. With high-quality products and a number of high-tech patents, it provides reliable fire sprinkler solutions for the global market.
Automatic response to improve fire extinguishing efficiency
The significant advantage of the fire sprinkler system is its automatic response capability. When a fire occurs, the temperature sensing element in the sprinkler will quickly respond to high temperature conditions, automatically open the valve, and spray water mist. This quick response mechanism can effectively suppress the fire in the early stage of the fire and prevent the fire from spreading. Compared with traditional manual fire extinguishers, the sprinkler system significantly reduces the delay caused by human factors, ensures the fastest fire extinguishing at the critical moment, and greatly improves the efficiency of fire extinguishing.
Wide coverage, ensuring life safety
The fire sprinkler system is designed to achieve effective coverage of a large area. When a fire occurs, the system can quickly cover the fire source with water mist, effectively reducing the flame temperature and thus suppressing the spread of the fire. Especially in high-rise buildings or large commercial centers, the sprinkler system provides valuable escape time for trapped people and significantly reduces the threat to life caused by fire. According to statistics, the fire mortality rate of buildings equipped with fire sprinkler systems is significantly lower than that of buildings without systems, which fully demonstrates the key role of sprinkler systems in ensuring life safety.
Cost-effectiveness, reducing long-term risks
Although the initial installation cost of the fire sprinkler system is relatively high, in the long run, its maintenance cost is low and its service life is long. The design and material selection of the sprinkler system make it easy to maintain frequently under normal circumstances, and the maintenance process is simple and easy. In addition, the existence of the sprinkler system can effectively reduce the economic losses caused by fire, reduce insurance costs, and thus improve the return on investment. Through reasonable cost management, enterprises can maximize economic benefits while ensuring safety.
Compliance with international safety standards
Since its establishment, Ningbo Kaituo Valve Co., Ltd. has always regarded quality as the lifeline of corporate development. Our products have not only obtained EU EN and CE certifications, but also strictly follow the ISO quality management system. These certifications and standards ensure that our fire sprinkler systems meet international safety standards during the design, production and testing process to ensure the safety of customers. Through continuous technological innovation and strict quality control, we are committed to providing customers with safer and more reliable fire protection solutions.