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Hướng dẫn mua, sử dụng máy bơm công nghiệp, bơm cứu hỏa, bơm xăng dầu |
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Hướng dẫn lựa chọn hệ thống định lượng xăng dầu, cần xuất dầu |
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Tư vấn lựa chọn, sử dụng đồng hồ đo lưu lượng, lưu lượng kế đo nước, đo xăng dầu và đo chất lỏng |
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Hướng dẫn lựa chọn Barrier tự động, bãi đỗ xe tự động |
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Tư vấn, thiết kế hệ thống chữa cháy, hệ thống báo cháy tựu động, hệ thống sprinkler tự động TCVN |
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Bí quyết thông thạo các điều kiện Incoterm 2010 trong thương mại quốc tế |
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 Khách trực tuyến: 22 |
 Lượt truy cập: 2294 |
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Deluge valve and Fire Alarm valve systems, UL listed, NFPA/FM standards approved
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Deluge valve and Fire Alarm valve systems, UL listed, NFPA/FM standards approved |
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| MÔ TẢ |
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How a deluge valve system works?
1. Manually
2. Electrically (Fire Detectors)
3. Pheumatically (Glass Bulb Detectors)
4. Hydraulically (Glass Bulb Detectors) - Each of these methodes (2 3 4) has a fire detection line that can activate the deluge valve
- Once the Detector operates the deluge valve will be activated, releasing (opening) the water supply to the system.
- Autommatic Fire Pumps can be activated by this proceedure and inturn extinguish/control the fire condition.
Deluge Valve Sprinkler Systems:
The Deluge system is designed to protect high hazard areas containing a severe fuel hazard with a high heat release rate by bringing a large number of open sprayers into action simultaneously in the event of a fire.
The most common approach of detecting a fire is the use of a sprinkler detection line permanently charged by air. In the event of a fire, the sprinkler detector heads directly affected by the fire will operate. The immediate drop in air pressure within the detector line releases the pressure against the Deluge valve diaphragm unit causing the Deluge Valve to open and discharge water through all the open water spray nozzles to rapidly control and extinguish the fire.
The fire fighting properties of the Deluge valve system can be considerable enhanced with the introduction of foam solution into the systems water supply. Enhanced foam Deluge systems are ideal for the protection of hazards such as the storage and handling of flammable liquids in aircraft hangars, oil refineries and chemical plants etc.
A typical Deluge valve system comprises of a control valve, a sprinkler operated detection system and a dedicated water supply system. For small or confined high hazard risk areas, Multiple Controls can be used instead of sprinklers. The Multiple Control is a distribution valve containing its own detection element. When this element is triggered, it supplies water to a small number of nozzles located within its zone of protection. They are available in 20, 25, 32 40 or 50mm sizes.
The size of the Deluge valve, its flow rate, the system water supply pressure and type of detection system are all determined by the size and type of fire risk involved.
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0989.886.889 |
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