By knowing the flow rates of fire hydrants in the area, and the residual pressure, firefighters can determine the maximum fire flow available.
The size of a fire determines the amount of fire flow necessary to extinguish the fire.
Water comes out of a hydrant. Firemen use hydrants when they are putting out fires in houses and businesses around town.
Fire hydrants are different colors to help firefighters quickly identify the flow rate and pressure of water they provide, as well as the size of the water main they are connected to. Standard colors like red, yellow, green, or blue often correspond to specific flow rates or other important information.
A fire hydrant comes in use when there is a fire by a house, building of anywhere close by. Firefighters will attach the hose to the hydrant to spray the water in the fire. ( I mean, have you ever heard of dragging tons of water around town all day??) I hope this answers your question!
Are you kidding? They supply water to fire hoses. You attach a fire hose and water comes out to put out a fire. Jeez... People these days.
A fireman's greatest resource, of course, is water and the #1 place they connect with that is fire hydrants (why not water hydrants?). Also at the fireman's disposal are trucks with compartments for tools, hoses, the Jaws of Life, breathing apparatuses, extra suits, axes, picks and a growing number of tech devices. Oh yeah, let's not forget those ladders for reaching those stranded at heights!
The pipes that deliver water from the treatment facility to the fire hydrants are called distribution mains. These large-diameter pipes are part of the water distribution system and are responsible for transporting treated water throughout the community to ensure that fire hydrants and other outlets have adequate water supply during emergencies.
hydrant is the sub part of fire water network from which water shall be discharged to on fire parts, and from where the hydrants gets water is the monitor, i.e from monitor water shall be distributed to hydrants.
Fire hydrants are made the way they are: 1. Their circular barrel is the strongest shape to resist breaking or denting if a car hits it. This shape is also the cheapest way to manufacture them. 2. Most hydrants have 3 water ports: These face up the street (or whatever), down the street, and out into the street. The biggest water port is called a 'steamer' port to connect to the fire truck pump. (Fire trucks used to have steam-operated engines). 3. The knob-looking part on the top of a hydrant is an 'operating nut' that operates a valve deep underground to let water into the hydrant. Most hydrants have no water in them unless they are being used. When this valve is closed to shut off water to the hydrant, it opens a second valve which allows the water in the hydrant to drain into the ground to prevent water inside the hydrant from freezing solid. This valve is normally open. 4. The hydrant water ports are usually between 24" and 36" above the ground. There are two reasons for this: a. If the ports weren't raised, they would be hard to connect to with snow, brush, or grass around them. b. The covers on the ports are taken off by the firefighters with a wrench with a long-ish handle. These covers are removed by attaching the wrench and then spinning the wrench around and around until the cover comes off. If the ports were any lower down, the spinning wrench would hit the ground and stop spinning. Sometimes the covers are hard to remove, so the wrench handle has to be long. 5. Various towns prefer different styles of hydrants . . . some hydrants at the top curve up to the operating nut. Some are just flattened on top. Inside, though, they do about the same thing. 6. In places where freezing is not a problem, there may be no drain valve, so these hydrants remain full of water. 7. New hydrants can have a "quick connect" adaptor instead of port covers. The firefighters have the same quick connect attachment on their fire hoses . . . they are fast and easy to connect to, and do not ever become 'stuck'. These are often called, "Stortz" connectors.
Fire hydrants are typically maintained by the local government or municipality where they are located. In some cases, private water companies or fire departments may also be responsible for their maintenance. Regular inspections and maintenance are crucial to ensure the hydrants function properly in case of a fire emergency.
The people will quarrel
To fight fires
Quite simply, a fire hydrant is a large connection to utility-supplied water for use by (usually) fire fighters. It has a large valve to keep the water off while not in use or while connections are being made. Once connections are made, the valve can be opened. There are some hydrants that provide a connection to a body of water instead of a pressurized water distribution line. Hydrants have a few different connection possibilities. Some hydrants have just one fitting for a 4 inch line. Others have one or two 2 1/2 inch connections with or without the 4 inch connections. The idea in any case is to have a place to make a connection to the inlet side of a pump on some kind of fire equipment so that it can draw water from the main and distribute it to hose lines, other equipment or both of those things.