Fire Hydrant System
The valve has to be opened & hoses pulled down to fight the fire. the landing valves & fire hoses cabinets are provided for the use of occupants to fight small fire . Hydrants (normally with 2.5inchs outlets located outside the building) & fire hose houses are provided for the usage of trained fire fighter. These are the most common but effective systems.Wet riser
Wet riser inside the building is furnished with required access such as hose pipes with instants gun metal coupling and gun metal branch pipes located in hose cabinets. The hose cabinets are wall/column mounting type, constructed out of 18 gauge mild steel sheets. The internal hydrant (landing valves) is single headed type taken out from 150/100mm dia riser through suitable reducer. Hose reel is firmly held against the wall by suitable heavy brackets and supports the hose reel is swing type (180deg) and entire drum reel etc..The rubber tubing is best quality and the nozzle is 6mm dia. Shut off type. The equipment shall be out of one of the approved makes. The hydrant main is laid in the form of ring main. The hydrant risers are terminated with air release valve at the highest points to release the trapped air in the pipe work
Depending on the type of hazard, different varieties and sizes of fire extinguishers are located per standards which form typical manual fire protection systems. Also semi automatic water based systems are classified as manual fire protection systems. In this case the water under pressure will be available in the pipe line...
Automatic Sprinkler System
the best form of protection, as it is designed to both detect and extinguish fire. The important aspect of this system is that it directly attacks the seat of the fire, avoiding unnecessary floor wettings. With this system chance of fire spreading to other areas is also eliminated.
For fire protection purposes, an integrated system of underground and overhead piping designed in accordance with fire protection engineering standards. The installation includes one or more automatic water supplies. The portion of the sprinkler system aboveground is a network of specially sized or hydraulically designed piping in a building, structure, or area generally overhead and to which sprinklers are attached in a systematic pattern. The valve controlling each system riser is located in the system riser or its supply piping. Each sprinkler system riser includes a device for actuating an alarm when the system is in operation. The system is usually activated by heat from fire and discharges water over the fire area.
Sprinklers are heat-activated, and tied into a network of piping with water under pressure. When the heat of a fire raises the sprinkler temperature to its operating point, a solder link will melt or a liquid- filed glass bulb will shatter to open that sprinkler, releasing water directly over the source of the heat.Sprinkler System provides ...
you from reaching the extinguisher. Be sure that everyone In the family knows where extinguishers are located and how to use them.
There are different kinds of fire extinguishers .different kind of fire can be controlled by different substances. Keep extinguishers in a handy location. The best location in most situations is just inside a door or entrance.Avoid locating an extinguishers right next to where a fire could develop. Smoke heat or flames from a fire may keep...
Fire Alarm & Detection Systems
the building occupantsto evacuate in the event of a fire or other emergency, report the event to an off-premises location in order to summon emergency services, and to prepare the structure and associated systems to control the spread of fire and smoke.
An automatic fire alarm system is designed to detect the unwanted presences of fire by monitoring environmental changes associated with combustion. In general, a fire alarm systems is classified as either's automatically actuated, manually actuated or both. Automatic fire alarm systems are intended to notify...
Down comers is also a form of internal hydrant for the firemen to use and are always charged with water tank located at the top of a building but without any pumps. Down comers are only permitted for private residential buildings with open balcony approach where the topmost floor is not higher than 60 meters above the fire appliance access level and should be adopted for low cost flats only. Down comers system comprises a high level water storage tank discharging into 150mm diameter riser pipe with landing valves at each floor and to which canvas hose with nozzles can be connected to direct the water jet at the fire. No pumps are provided and therefore the system pressure is limited to the static pressure only.