• Fire Hydrant System

A fire hydrant System is an above-ground connection that provides access to a water supply for the purpose of fighting fires. Fire hydrant systems are an installation of pipes, water tanks, pumps, hydrant outlets and/or hose reels.

A fire hydrant System is an above-ground connection that provides access to a water supply for the purpose of fighting fires. Fire hydrant systems are an installation of pipes, water tanks, pumps, hydrant outlets and/or hose reels.

Hydrant Systems can be of two types:

External Hydrant System, where the hydrants are installed in the open, like the city or town water mains, or hydrant systems installed in the open areas in industrial or such other occupancies
Internal Hydrant System, installed in buildings or structures to be protected. We design an integrated Hydrant System as per national and international norms. We consider capacity of fire pump, size and arrangement of pipes used for hydrant system, pressure at hydrant point against the available fire risk. Our designed Hydrant System is an arrangement of piping, valves, hose connection and allied equipment installed in building and structure with connection located in such a manner that water can be discharge in stream of spray patterns through attached hose and nozzle for the purpose not only extinguish the fire but at the same time save the occupants and contents of area in with better response time.

Overview: Hydrant fire protection system is designed to fight fire of huge proportions, in all classes of risks. It is designed to be in operation even if a part of the affected structure collapses. Our hydrant system consists of yard hydrant piping systems, internal hydrant piping, hose reel drums, hose cabinets, internal and external hydrant valves and set of pumps.

Target Industry Segments:
Commercial Buildings, Industries, Power Plants, Refineries, Residential Apartments, Theatres, Telephone Exchanges

System Description: The hydrant system typically comprises of fire water source, pumps (diesel, electrical), control panel, system piping, control valves and hydrant valves with accessories.

Standards & Compliances:
NBC, NFPA, TAC, IS, FM and Local Fire Authorities

• Wet Riser System

A well-designed wet fire protection system wet riser is the backbone of fire protection systems for modern buildings and is mandated by the local Fire Brigade, insurance authorities and other regulatory bodies. A typical building normally has two or more shafts, which travel from the lowest level of the building to its terrace. Such shafts are normally used to carry the piping for the wet-riser systems. Hydrant outlets are provided on every floor so that the entire floor area of the building is adequately covered. Outlets are provided in the form of double-outlet landing valves. Apart from a canvas hose for the use of fire-fighting personnel in the event of fire.

All wet-riser pipes remain charged with water at systems pressure. The opening of a hydrant landing valve or hose reel on any floor reduces the pressure in the pipeline and starts the hydrant pump. Pump-sets of suitable capacity are provided for this purpose. Because of the static pressure differential caused by the change in floor height, a multi-stage pump is employed so that different tapping can be taken from the output of the pump. Each of these tapping can be used to serve more than one floor. Pumps-sets should be fed with reliable electric supply from a separate feeder and it is therefore also desirable to have a stand-by diesel pump. Apart from the wet riser system, hydrant points should also be provided at strategic locations around the building at ground level. These 'yard hydrants' are of immense use on fire fighting. Water must be made available through reservoirs in adequate quantities at convenient locations. Periodic drills should be conducted by opening the hydrant valves to ensure proper operation of the systems.

• Fire System In Buildings

A hose is attached to the fire hydrant, then the valve is opened to provide a powerful flow of water, on the order of 350 kPa (50 lbf/in²) (this pressure varies according to region and depends on various factors including the size and location of the attached water main). This hose can be further attached to a fire engine, which can then use a powerful pump to boost the water pressure and possibly split it into multiple streams. The hose may be connected with a threaded connection, instantaneous "quick" connector or a Storz connector. Care should be taken not to open or close a fire hydrant too quickly, as this can create a water hammer which can damage nearby pipes and equipment. The water inside a charged hoseline causes it to be very heavy and high water pressure causes it to be stiff and unable to make a tight turn while pressurized. When a fire hydrant is unobstructed, this is not a problem, as there is enough room to adequately position the hose.

When a firefighter is operating a hydrant, appropriate personal protective equipment, such as gloves and a helmet with face shield, are typically worn. High-pressure water coursing through a potentially aging and corroding hydrant could cause a failure, injuring the firefighter operating the hydrant or bystanders.Most fire hydrant valves are not designed to throttle the water flow; they are designed to be operated full-on or full-off. The valving arrangement of most dry-barrel hydrants is for the drain valve to be open at anything other than full operation. Usage at partial-opening can consequently result in considerable flow directly into the soil surrounding the hydrant, which, over time, can cause severe scouring. A hose with a closed nozzle valve, or fire truck connection, or closed gate valve is always attached to the hydrant before opening the hydrant's main valve.

In most jurisdictions it is illegal to park a car within a certain distance of a fire hydrant. In North America the distances are commonly 3 to 5 m or 10 to 15 ft, often indicated by yellow or red paint on the curb. In the UK, yellow lines are used to keep cars from parking over underground hydrants. Parking restrictions are sometimes ignored (especially in cities where available street parking is scarce), however these laws are usually enforced. The rationale is that hydrants need to be visible and accessible in an emergency.