Fire Hydrant System

A Fire hydrant installation comprises of a system of pipe construction that is directly connected to the water supply main to send water to each and every hydrant outlet and is meant to provide water for firemen to battle a fire.

The water is dumped into the fire engine, where it is pumped and sprayed into the flames. Hydrant pumps should be installed when the water supply is unreliable or insufficient to pressurize the fire mains.

The following is an example of a typical hydrant installation supplied straight from the water main and pressured by fire pumps:

The Jockey Pump, Electric Driven Pump, and Stand-by Diesel Driven Pump compose the Fire Pump Station. The pump operates automatically dependent on header pressure in the hydrant network through pressure switch connections. The jockey pump and main pump's supply is linked to the shared delivery header.

The Fire Hydrant System Line is continually kept under water pressure. If there is a little pressure drop in the system and the pressure reaches the Jockey pump's preset pressure setting, the Jockey pump will start automatically to adjust for the pressure discrepancy.

If one or more hydrant valves are opened to battle a fire, the Jockey pump will not be able to compensate for the water loss, leading in a further decline in pressure. When the lowering pressure approaches the main pump's preset pressure, the main pump will automatically start. In the event of a power outage, a diesel engine-driven backup pump will be activated.

To draw water from the water main, a fire fighting system connects a fire hose to the fire hydrant and opens a valve. The majority of fire hydrants are intended to flow no less than 250 gallons (950 liters) of water per minute.