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Dry Barrel Fire Hydrant

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Dry Barrel Fire Hydrant

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Dry Barrel Fire Hydrant

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Wall Post Indicator

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Wet Barrel Fire Hydrant

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Wet Barrel Fire Hydrant

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About Fire Hydrants


A fire hydrant is a marked water supply access point in a predetermined area. Fire hydrants connected to a water supply system are required in all public and private structures, parking lots, roadways, mines, factories, etc. 


They're made to provide the water firemen quickly need to put out blazes. The use of above-ground fire hydrants did not begin until the nineteenth century. Above-ground fire hydrants mounted on pillars became standard beginning in the 19th century.


To put out a fire, water is pumped from a water main through a pipe controlled by a valve called a fire hydrant.


Several kinds of fire hydrants have a wide range of valves and attachments. When a fire breaks out, the firemen first find the nearest fire hydrants, hook up their hoses, and pump a significant amount of pressurized water onto the blaze. 


A unique pentagonal wrench must be utilized to access the hydrant's valve. After the hoses are hooked up, the water can flow when the valve opens.


You can normally attach a fire hose to them and turn a nut or bolt to activate the flow. Each fire hydrant is merely a connection to the city's main water supply.


A riser, or pipe, runs beneath it and connects to the hydrant valve. However, the pressure and flow of water from standard hydrants are unaffected.


They allow firefighters to use the preexisting pressure in the water pipes by acting as valves. While this may seem straightforward, a fire hydrant's inner workings are complex and vary depending on where you live.


Frequently Asked Questions 


1. Why is a fire hydrant placed?

Ans: Fire hydrants are a vital tool for firemen, allowing them to swiftly access the pressurized water supply of the local water company in the event of a fire. The firemen remove one or two nozzles, attach hoses, and crank the valve to start the water flow.


2. What exactly does the water in a fire hydrant have?

Ans: To ensure that the water used to extinguish fires is of the same high quality as the water supplied to your home, fire hydrants are linked to the system that supplies drinking water.


3. What kind of pipe would you recommend for a fire hydrant?

Ans: Depending on the structure's height, the line from the pump to the main hydrant should be 80mm to 100mm in diameter. Individual floor lines require pipes with a diameter between 25mm and 32mm. Sprinkler systems require 25mm pipes.


4. A fire hydrant is what size?

Ans: The inside diameter of the primary valve seat opening determines the size of a hydrant, which can be either 4 12 or 5 14 inches. The length of a hydrant is based on how far the trench goes underground. Multiples of six inches are used for lengths.


5. How close together must fire hydrants be?

Ans: As determined by automobile access and building perimeter, fire hydrants must be located no more than five hundred (500') feet from the farthest point within a building. Fire hydrants must be spaced no more than 800 feet apart.

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