Products Description
Wet System Valves and Components
forede Wet System Valves and Components are the core control assembly of wet pipe sprinkler systems, where piping is permanently filled with pressurized water. The assembly includes a wet alarm valve (central component), water flow indicators, pressure gauges, hydraulic alarm devices, and auxiliary valves. Under normal conditions, the alarm valve's clapper is closed by system pressure; when a fire melts a sprinkler head's fusible link, the pressure drop opens the clapper, allowing immediate water discharge and triggering on-site and remote alarms via the hydraulic gong and pressure switch. Key advantages include immediate water discharge (no lag time, minimizing fire spread), high reliability (simplified structure with fewer moving parts), low maintenance costs (durable materials, straightforward inspections), accurate fire zone localization (via flow indicators), and compatibility with diverse sprinkler heads. These traits make them suitable for environments above 4°C, including commercial buildings (malls, offices), institutional facilities (hospitals, schools), high-rise residential buildings, and light industrial sites with controlled temperatures. Proper usage involves pre-operation commissioning (valve check, alarm and flow indicator testing, pressure verification), routine maintenance (daily pressure monitoring, monthly alarm tests, annual flow tests), and post-fire reset (shut off water, drain, inspect/replace components, repressurize, and retest). The components' synergy ensures the system remains always ready, delivering rapid, effective fire suppression when needed. As a critical part of wet pipe sprinkler systems, forede Wet System Valves and Components balance reliability, speed, and ease of use, providing essential fire protection for diverse buildings and facilities where immediate response is vital and freezing is not a concern.
Valve Type
Working Pressure
size
Warrnty
Specification
|
Model Number |
Size |
Flange Standard |
Installation |
Working Pressure |
|
ZSFZ 80 |
DN80(3'') |
BS4504 |
Vertical |
1.6 Mpa |
|
ZSFZ 100 |
DN100(4'') |
BS4504 |
Vertical |
1.6 Mpa |
|
ZSFZ 125 |
DN125(5'') |
BS4504 |
Vertical |
1.6 Mpa |
|
ZSFZ 150 |
DN150(6'') |
BS4504 |
Vertical |
1.6 Mpa |
|
ZSFZ 200 |
DN200(8'') |
BS4504 |
Vertical |
1.6 Mpa |
|
ZSFZ 250 |
DN250(10'') |
BS4504 |
Vertical |
1.6 Mpa |
Frequently Asked Question
Frequently Asked Questions
Q. What is a Wet Alarm Valve?
-
A: Wet Alarm Valve is the critical control unit in a wet pipe sprinkler system. It maintains water pressure in supply pipes while monitoring flow. When a sprinkler activates, it:
Releases water into distribution pipes.
Triggers alarms via mechanical & electrical signals.
Composition: Valve clapper, retard chamber, alarm port, and test drains.
Q. Advantages of Wet Alarm Valves
-
A: Instant Response: 3-5 second water release after sprinkler activation.
Ultra-Reliable: No electronics – operates on water pressure alone.
Low Maintenance: Annual inspection vs. quarterly checks for dry systems.
False Alarm Prevention: Retard chamber filters pressure surges.
Leak Detection: Test valves monitor seal integrity continuously.
Q. Why Choose Wet Alarm Valve Sprinkler System?
-
A: Life-Saving Speed: 50% faster water delivery than dry/pre-action systems.
Cost-Effective: 30% lower installation/maintenance costs.
Simplicity: No air compressors, priming delays, or complex controls.
Fail-Safe Operation: Functions during power outages.
Q. How the Valve Operates?
-
A: Standby: Water pressure holds clapper closed.
Activation: Sprinkler opens → pressure drop lifts clapper.
Flow: Water enters sprinkler pipes.
Alarm Sequence:
Water fills retard chamber (5-60 sec delay).
Activates water motor gong (mechanical bell).
Triggers pressure switch (electronic alarm).
Reset: Close main valve → drain → inspect → repressurize.
Q. Where we should use check alarm valve?
-
A:The check alarm valve is an essential component of any fire protection system. It is designed to provide reliable and efficient protection in critical applications, such as high-rise buildings, power plants, and industrial facilities. In short, we should use check alarm valves wherever there is a risk of fire and a need for an effective fire suppression system.
One of the main benefits of check alarm valves is their ability to control or stop the flow of water through the system at the right time. This is particularly important in a fire situation, where the last thing you want is for the water to continue flowing even when it's no longer needed. Check alarm valves help to ensure that water is delivered where and when it's needed, which can significantly reduce the damage caused by fire.
Another advantage of check alarm valves is their ability to provide early warning of system failure. If there is a problem with the fire suppression system, the check alarm valve will sound an alarm that alerts you to the issue. This means that you can address the problem before it gets out of hand, reducing the chances of a fire breaking out and causing damage to your property.
Check alarm valves are also useful in situations where there is a risk of freezing or overheating. They are designed to release water at a consistent rate, even in extreme temperatures, which helps to protect the system and prevent damage to the building.
In conclusion, check alarm valves are a critical component of any fire protection system. They help to ensure that water is delivered where and when it's needed, provide early warning of system failure, and protect against freezing or overheating. By using check alarm valves in the right applications, we can help to keep our buildings and facilities safe and prevent the spread of fire.
Recommend Product
FIRE SPRINKLER SYSTEM
Main Product
Our Main Product
Contact Information
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Our address
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Phone Number
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