Fire Deluge Alarm Valve
The deluge alarm system is a fire extinguishing system composed of a deluge alarm valve, a detection control system, a sprinkler head and the necessary control valves, pipe fittings, connecting pipes and pressure gauges.It is widely used in deluge system,pre-action system, water curtain/water mist system and foam system, and can also be used as the control valve of dry indoor fire hydrant system.Suitable for hospitals, hotels,shoppingmalls,factories,airports,casinos,libraries,stadiums,exhibition centers,substations and other places.
Description
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Products Description

Fire Deluge Alarm Valve
The ZSFM series Fire Deluge Alarm Valve is the core control device for large-flow automatic fire suppression systems, compatible with deluge water spray/foam-combined fire suppression systems. It is widely used in high-risk areas (e.g., flammable material warehouses, theater stages, chemical production workshops) and offers two main body material options: QT450-10 ductile iron and 304 stainless steel to meet different corrosion environment needs.
Compliant with GB 5135.5-2003 Automatic Sprinkler Fire Suppression System - Part 5: Deluge Alarm Valves, this valve has a 1.6MPa rated working pressure and supports manual/automatic/electric activation modes. Once triggered, it quickly opens to deliver large-flow water or foam mixture.
Technical Parameters
| Model | Nominal Diameter (DN) | Material Options | h(mm) | H(mm) | A(mm) | B(mm) | M(mm) | N(mm) | K(mm) | N-L(mm) | C(mm) | Rated Working Pressure (MPa) | Seal Test Pressure (MPa) | Strength Test Pressure (MPa) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ZSFM 50-1.6 | 50 | Ductile Iron/304 SS | 270 | 420 | 175 | 175 | 190 | 82.5 | Φ125 | 4-Φ18 | / | 1.6 | 3.2 | 6.4 |
| ZSFM 65-1.6 | 65 | Ductile Iron/304 SS | 270 | 420 | 175 | 175 | 190 | 92.5 | Φ145 | 4-Φ18 | / | 1.6 | 3.2 | 6.4 |
| ZSFM 80-1.6 | 80 | Ductile Iron/304 SS | 330 | 475 | 180 | 180 | 196 | 100 | Φ160 | 8-Φ18 | / | 1.6 | 3.2 | 6.4 |
| ZSFM 100-1.6 | 100 | Ductile Iron/304 SS | 340 | 480 | 180 | 190 | 196 | 110 | Φ180 | 8-Φ18 | / | 1.6 | 3.2 | 6.4 |
| ZSFM 100-1.6(G) | 100 | Ductile Iron/304 SS | 360 | 490 | 180 | 190 | 196 | 75 | / | / | 110.1 | 1.6 | 3.2 | 6.4 |
| ZSFM 150-1.6 | 150 | Ductile Iron/304 SS | 415 | 545 | 215 | 215 | 235 | 142.5 | Φ240 | 8-Φ22 | / | 1.6 | 3.2 | 6.4 |
| ZSFM 200-1.6 | 200 | Ductile Iron/304 SS | 530 | 650 | 240 | 240 | 280 | 170 | Φ295 | 12-Φ22 | / | 1.6 | 3.2 | 6.4 |
| ZSFM 350-1.6 | 350 | Ductile Iron/304 SS | 850 | 950 | 345 | 345 | 385 | 260 | Φ470 | 16-Φ28 | / | 1.6 | 3.2 | 6.4 |
Safety & Compliance Tips

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Typical Application Scenarios
General Industrial Workshops (e.g., machining plants): ZSFM 100-1.6 (ductile iron) for deluge water spray systems;
Chemical Production Workshops/Tank Farms: ZSFM 150-1.6 (304 SS) for foam-water combined deluge systems;
Large Storage Warehouses (e.g., logistics centers): ZSFM 200-1.6 (ductile iron) to cover ultra-large protection areas;
Coastal High-Salt Environments: ZSFM 80-1.6 (304 SS) to avoid valve corrosion from sea breeze.
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Installation & Maintenance Guidelines
Installation Key Points
Select the corresponding material (ductile iron/304 SS) based on the site's corrosion environment; use oil-resistant rubber gaskets (for ductile iron) or PTFE gaskets (for 304 SS) for flange connections.
Reserve a straight pipe section ≥3× the pipe diameter on the water inlet side to ensure stable medium flow.
After installation, conduct a 1.92MPa (1.2× rated pressure) pressure holding test for 30min to confirm no leakage.
Our Advantages
At CA-FIRE, we focus on delivering top-tier fire protection via advanced deluge alarm valves and full fire suppression systems. Our offerings prioritize reliability, safety, and peace of mind across diverse applications, with key differentiators as follows:
Sturdy Product Build
Our deluge alarm valves use high-quality materials-stainless steel bodies and EPDM-reinforced diaphragms-ensuring durability in tough industrial settings. Each valve undergoes precise manufacturing and strict testing to perform consistently under high pressure.
Fast Fire Suppression
Designed for instant response, our valves quickly release large amounts of water or fire-retardant agents, containing and putting out fires before they spread. This speed is vital for high-risk areas like chemical plants, warehouses, and data centers.
Regulatory Compliance
Our systems meet strict global standards (including NFPA 13 and NFPA 25) and local fire safety codes. Compliance guarantees reliable operation and maximum protection.
Customized Solutions
We recognize unique fire protection needs for each facility, offering tailored plans for industrial production lines, bulk storage, healthcare institutions, offshore platforms, subway systems, and more.
Full-Service Support
Beyond manufacturing, CA-FIRE provides end-to-end assistance: system consultation, design, installation, routine maintenance, and staff training for emergency response. Our team ensures every system is correctly installed, well-maintained, and fully functional at all times.
Safety & Innovation Focus
We continuously invest in R&D to boost product efficiency, reliability, and safety. Our goal is to deliver cutting-edge fire suppression solutions that protect property, assets, and lives, while keeping up with evolving industry standards.
With CA-FIRE and our deluge alarm valves, you get not just high-performance fire protection equipment, but a trusted partner dedicated to safety, innovation, and your success.
FAQ
Q1: What is a Deluge Alarm Valve?
A1: A deluge alarm valve is a control device used in fire protection systems to rapidly release large volumes of water or foam when a fire is detected. It remains closed under normal conditions and opens automatically once the detection system is triggered.
Q2: How does the deluge valve system work?
A2: When the detection system senses heat or smoke, it activates the deluge valve. Water then flows through open-type sprinklers or spray nozzles, quickly flooding the protected area to control or extinguish the fire.
Q3: What is the difference between a deluge valve and a wet alarm valve?
A3: A wet alarm valve holds water under pressure in the piping at all times, while a deluge valve keeps the piping dry until activation. The deluge type is designed for high-risk areas requiring fast, full-area discharge.
Q4: Where is the deluge alarm valve commonly used?
A4: It is widely applied in power plants, transformer rooms, aircraft hangars, oil & gas facilities, chemical plants, and other high-hazard industrial zones.
Q5: What materials are CA-FIRE deluge valves made of?
A5: CA-FIRE deluge alarm valves are constructed from durable cast or ductile iron with corrosion-resistant coatings to ensure strength and reliability under harsh operating conditions.
Our address
NO.8, YUANFENG ROAD, MEIYUAN VILLAGE, KANGMEI TOWN, NANAN CITY, QUANZHOU CITY, FUJIAN CHINA
+86 18160950625
miki@ca-fire.com

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