In real life, an 1-3/4” handline can comfortably and safely flow from 100 to 180-GPM on the fireground, and any flows over 150-GPM are …
A 1 ¾-inch fire hose is approximately 20 pounds per 50 feet (dry). A 50-foot section of 2.5-inch fire hose when full might weigh 129 pounds and a 5-inch diameter fire hose weighs approximately 55 pounds per 50 feet dry (110 pounds per 100 feet dry) and more than 900 pounds when full!
All Fire Hose Questions You Need Answered
The line on average attack fire hose is 1 3/4″ with its own threaded couplings. 85 lbs of weight is attributed to the hose, 120 lbs of weight based on hose ID and normal known hose length. That way you can calculate an example based off known factors.
The weight difference between 1–1/2" and 1–3/4" varies from 1 pound per 50 feet to 4 pounds per 50 feet depending on the manufacturer and model. The difference between the 2 hoses for 200 ft would be approximately 55 pounds (water weight) plus 4 to 16 pounds hose weight). Use 60 to 70 pounds.
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How much does a fire hose weigh?
The line on average attack fire hose is 1 3/4″ with its own threaded couplings. 85 lbs of weight is attributed to the hose, 120 lbs of weight based on hose ID and normal known hose length. That way you can calculate an example based off known factors.
How to maintain a fire hose?
Learn some techniques that could benefit the life and maintenance of your fire hose. Use low pressure water to provide a rinse for the outside of the hose. Mix together warm not hot water and some detergent. Get into a nice frothy mix and use it to polish up the hose.
Will the 1-3/4” hose line put out fire?
Will the 1-3/4” hose line put out fire—of course. But, keep in mind that it might be (and has been) overwhelmed by a large body of fire, and 200’ may find you far short of your objective.
What is the minimum flow rate required for a fire hose?
NFPA #1710*, states that the initial arriving companies should be able to establish an initial fire flow of 300-GPM from two hand lines, each of which should have a minimum flow rate of 100-GPM. While this can be done with 1-3/4” hose, you will need some practice and extra folks to make it work at 150-GPM each.
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Pump Operations Lesson #5 Friction Loss 1 3/4 Inch Hose Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher