It depends on flow.
2 PSI for 500 GPM
8 PSI for 1000 GPM
18 PSI for 1500 GPM
32 PSI for 2000 GPM
This is per 100' ft
If your flows are big, ie.
defensive conditions, you must relay for anything over a couple hundred feet in length.
Capt. Ridgeway
Tumwater
Fire
Weight of 50ft section of 3 inch hose with water in it?
109 lbs with no water
All else being equal, a 2-inch hose carries 4 times the volume as a 1-inch hose.
That section of hose holds 25.5 gallons of water when it's full, which weighs about 213 pounds. To that, add the weight of the empty hose, which I don't know.
9 and 10 respectively. Both have remainders but you may not be able to use it to make a new one
Difficult to say. Hydraulic resistance is proportional to diameter as well as length and velocity. Water moving very slowly in a short length of either type of hose would have negligible resistance. The more likely answer you want is that high-velocity water in a garden hose would experience MUCH more resistance (friction loss) than that in any fire hose of larger diameter. The actual numbers will depend upon specific friction-loss factors, including the type and size of hose and the gallons per minute. For example, the friction loss coefficient in a 1.5-inch fire hose (24) is more than ten times what it would be in a 2.5-inch hose (2.0) and 100 times that of a 4-inch hose (0.2).
Weight of 50ft section of 3 inch hose with water in it?
1200gpm
300 GPM
A standard fire hose is 50 feet long. A hose this length with a 2-inch radius grants about 4.36 cubic feet. This volume holds 32 gallons of water.
A 2.5 inch fire hose has a capacity of approximately 60 gallons per 100 ft. Therefore, a 50 ft hose would hold around 30 gallons of water.
109 lbs with no water
100 pounds with couplings, 68 without.
All else being equal, a 2-inch hose carries 4 times the volume as a 1-inch hose.
NFPA 1901, Standard for Automotive Fire Apparatus - Requires pumpers to carry: * 15 feet of large soft sleeve hose or 20 feet of hard suction hose * 1200 feet of 2 ½ inch or larger supply hose * 400 feet of 1 ½ , 1 ¾, or 2 inch attack hose
If "6 inch" is the inside diameter of the hose, thenVolume = (pi) (radius)2 (length) = (pi) (3)2 (1,200) = 33,929.2 cubic inches = 146.88 gallons (rounded)
That section of hose holds 25.5 gallons of water when it's full, which weighs about 213 pounds. To that, add the weight of the empty hose, which I don't know.