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प्रयोक्ता रेखाचित्र - moko17am - siwanaonline.com

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MPORTANCE OF FIRE HOSE SIZE

When arriving on the scene of a fire, emergency crews have to make quick, on-the-spot decisions for approaching the situation. Arguably, one of the most

crucial determinations that needs to be made is which hose lines are best suited for the circumstances. Fire severity, type of property, amount of required

hose, and suppression tactics are all factors that influence what size and type of hose should be used. Choose correctly; the blaze has a better chance of

being contained. Get it wrong; the situation can take a turn for the worse. Two essential hoses operated by firefighters are attack and supply hoses. In this

article, the BullDog Hose team highlights why hose size matters when approaching a fire. 



Attack Lines


Attack hoses, such as BullDog’s Hi-Combat II?, Firepower II?, Ultima?, and Fireguard?, are designed to tackle fires in their beginning stages and offer

flexible approaches to different types of fires. The most common attack line sizes that fire departments deploy are 1.75 inches and 2.5 inches. Both sizes

have pros and cons, depending on the situation at hand. Deciding to work with one format over the other can dictate the effectiveness of the initial

suppression efforts. Smaller diameter hoses require much higher pressure to move lower volumes of water.


When working with the 1.75-inch hose, it is most useful for taking on residential and vehicle fires. This hose size is much lighter and more maneuverable

than the 2.5-inch line. A more compact design makes it easier for firefighters to move the line through hallways, stairwells, and small rooms. Generally,

this hose can be operated by two to three firefighters and can deliver water around 140 to 200 gallons per minute (gpm). So this is the desired hose to

utilize when suppressing smaller fires. Being relatively easier to manage, 1.75-inch hoses tend to be a ‘catch-all’ when first responding to a fire. If

attempting to tackle larger blazes, the 2.5-inch attack hose should be fielded. 



A 2.5-inch hose line is the best choice when responding to more significant commercial buildings and exterior fires. With the ability to deliver high

volumes of water at 200 to 300 gpm, this hose can take on more of the fire load than the smaller 1.75-inch attack line. The 2.5-inch hose can be more

challenging to control in smaller spaces and is commonly handled by three to four firefighters. 


Supply Lines


Keeping the attack lines charged and operating at their best efficiency all depends on the supply hoses. These hoses, like BullDog’s Hi-Vol? and Hi-Vol

TPU?, can be found in sizes ranging from 3 to 6 inches in diameter. The bigger supply lines move high volumes of water from hydrants and fire engines to the

attack lines. With the larger diameter, supply hoses can carry more water at lower pressures. Relocating supply lines can be difficult once the water begins

flowing. 


Fire fighting is one of the professions that keeps our nation thriving. But, fire departments around America have to select the best hoses every year.

Budgets might change and the seasons grow warmer, but safety is of utmost importance. However, not every fire hose works the same due to the fires they have

to fight. So, let’s learn about the big differences between municipal and industrial fire hoses. 


Municipal Fire Hoses


Municipal Fire Hoses are designed for fire fighting that requires kink resistance and critical water flow. Being lightweight is key, as these hoses often

have to deal with shifting terrain and various on-the-job changes. While older and more standard municipal fire hoses are maximized for normal wear and tear,

what about the specialty hoses?


There are a variety of municipal fire hoses on the market to solve any problem your fire department or town might be facing. Need hoses to be more cost

conscious, solutions are available. What about municipal hoses needed to reach high rise or raised angle structures? There are fire hoses for that as well.


Pumping to high-rise buildings in cities vs. rural settings is also a concern faced by these same municipal fire hoses. Depending on the structures you

protect, you will need to consult with your hose supplier to find out which one works the best for you. 

Industrial Fire Hoses


Industrial Fire Hoses pack a little more punch than the typical municipal fire hose. They feature far superior heat and abrasion resistance. Plus, they

tend to be able to support issues concerning oil, fuel and chemicals far greater than the typical municipal fire hose. The industrial fire hoses tend to be

flexible and lightweight as well. 


These fire hoses also tend to be optimized to be maintenance free. While that doesn’t mean you won’t have to take care of industrial fire hoses, it

means maintenance demands will be fewer. The practical uses of the industrial fire hoses remain the same in theory. You’re going to transfer liquid,

washdown areas and generally solve problems.


However, municipal fire fighting hose belong to the typical mental image you have

day-to-day fire fighting. Meanwhile, industrial fire hoses are used on air strips, military bases, heavy industrial factories and related business

areas. 


What kind of fire fighting hose are you going to need?


As time marches on deeper into the year and your budget deadline grows close, you will have to address your fire fighting needs. No one wants to be the

person that reaches for a fire hose only not have it be suited for the purpose at hand. Whether you’re outfitting your local rural fire department or

keeping an auto plant safe, you must know the differences between municipal and industrial fire hoses.