Wet Alarm Valve Introduction
The Wet Alarm Valve is a key component of automatic sprinkler systems, typically used in environments with temperatures above 4°C. It automatically opens the valve when system-side water pressure drops during a fire, supplying water continuously for firefighting while triggering hydraulic alarms and pressure switches. Constructed from durable cast iron or ductile iron with a reliable rubber-sealed valve, it ensures simple, stable, and effective operation in commercial, residential, and public buildings.
Automatic Fire Suppression & Alarm
Combines water supply, control, and alarm functions to ensure rapid fire response.
Delayed Alarm Function
Includes a delay mechanism to prevent false alarms caused by temporary water pressure fluctuations.
Durable Construction
High-strength cast iron or ductile iron body with rubber-sealed valve for long-term reliability.
Wide Application Range
Suitable for offices, hotels, shopping centers, residential buildings, and underground parking areas in environments above 4°C.
How It Works
Reliable Operation You Can Trust
01
Standby Pressure Balance
In normal conditions, the valve maintains balanced pressures on both sides, with a bypass line slightly increasing downstream pressure to prevent false alarms from minor water pressure fluctuations.
02
Fire Activation
When a closed sprinkler head activates, system-side water pressure drops. This differential opens the valve, allowing water to flow into the system for firefighting.
03
Alarm & Signal Trigger
Water entering the delay mechanism drives the hydraulic alarm and activates the pressure switch, sending a signal to the fire control center while simultaneously supplying water to suppress the fire.
Advantages & Applications
Efficient Fire Protection for Critical Spaces
Integrated Fire Suppression & Alarm
Combines water supply, control, and alarm functions in one unit, ensuring fast automatic fire suppression and immediate alert for high-risk areas.
Reliable & Durable Construction
High-strength cast iron or ductile iron body with rubber-sealed valve provides long-term reliability and stable operation under varying pressures and environmental conditions.
Wide Range of Applications
Ideal for offices, hotels, shopping centers, residential buildings, and underground parking areas where ambient temperatures remain above 4°C, providing effective protection for both personnel and property.
FAQ
Q: What is a wet alarm valve?
A: A key sprinkler system component that automatically supplies water and triggers alarms during fire.
Q: How does it operate?
A: Valve opens when system-side pressure drops, sending water to sprinklers and activating hydraulic alarms.
Q: Where is it used?
A: Suitable for offices, hotels, shopping centers, residential buildings, and underground parking above 4°C.
Q: Is it durable and reliable?
A: Yes. Made from high-strength cast iron or ductile iron with rubber-sealed valves for long-term performance.
Ca-Fire Protection Co.,Ltd is one of the most professional wet alarm valves manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized wet alarm valves at competitive price from our factory.