Application of Shanghai Fengshen Fluid Controllers in Fire Protection Systems
Shanghai Fengshen, as a specialized R&D and manufacturing enterprise for fluid controllers, offers a range of core products widely used in critical components of fire protection systems. By precisely controlling pressure, flow, and media, they ensure reliable system operation, prevent emergency failures, comply with industry standards, and are suitable for various building and industrial fire protection scenarios.
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The main product applications are as follows:
1. Pressure Controllers (Including Low-Pressure Switches)
As the core pressure monitoring component for fire protection systems, Fengshen pressure controllers (including specialized models like P6W12S) are primarily suited for automatic sprinkler systems and fire water supply systems. Core application scenarios include:
• Wet Alarm Valve Assembly: Installed at the end of a sprinkler system's wet alarm valve assembly. When a fire occurs and sprinklers activate, a drop in pipeline pressure reaches the set value, triggering the controller to send a feedback signal and start the sprinkler pump, ensuring a stable water supply pressure. The P6W12S model is specifically designed for fire protection, capable of sending a quick signal at low pressure for protection.
• Fire Pump Discharge Main Monitoring: Functions as a low-pressure switch, continuously monitoring the static pressure in the piping network. When the pressure drops sharply to the set value (≤0.35MPa), it initiates the main fire pump. Designed solely for pump start function, it complies with mandatory industry codes, offering excellent adaptability and stability.
2. Flow Switches
As a key component for the automatic start of fire pumps, they are primarily applied in the discharge piping of elevated fire water tanks, with adaptations for two system types:
• Systems without Pressure Maintenance Pumps: Installed upstream of the check valve. When the water flow rate reaches 1.0~3.5 L/s, it triggers a magnetic switch to start the pump, avoiding water hammer.
• Systems with Pressure Maintenance Pumps: Installed on the main pipe downstream of the pressure maintenance device. The activation flow rate is set above typical system leakage but below initial fire-fighting water demand, and includes a 30-second delay to prevent false starts.
Together with pressure switches, they form a redundant backup, enhancing the emergency response reliability of the fire protection system.
3. Solenoid Valves (SV Series, SV-G Series)
Leveraging excellent insulation, waterproofing, and corrosion resistance, they are widely used in fire sprinkler water supply and media delivery scenarios. The two series are adapted as follows:
• SV-G Series Solenoid Water Valves: Specifically designed for fire protection, enabling automatic opening and closing of pipelines. Suitable for conveying fire water, hot water, and steam, with a maximum working pressure of 3MPa, adaptable to different pressure-grade pipelines.
• SV Series Solenoid Valves: Feature a pilot diaphragm structure for controlling fire protection media. The fully encapsulated coil is waterproof and shock-resistant. Installation must follow codes and include a filter.
4. Differential Pressure Controllers
Primarily used for monitoring and protecting against pressure differentials in fire protection piping. Suitable for pumps and sprinkler systems, they help prevent issues from pipeline damage or insufficient media delivery efficiency. Fengshen has taken a leading role in drafting the relevant industry standard, ensuring product performance aligns with specifications. They can be set with differential pressure thresholds to provide feedback on anomalies or trigger protective actions.
5. Overall Application Advantages and Scenario Coverage
Fengshen fluid controllers for fire protection are certified by bodies such as CQC and CE, with some models holding UL certification. They are suitable for various building and industrial fire protection scenarios, covering core fire protection system components.
Backed by robust R&D and quality control, these products enable the automated control of fire protection systems, ensuring stable emergency response. They also contribute to import substitution and optimization of overall system costs.
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