3 INCH vs 5 INCH Hose for supply
After Looking at the answers to my Post on FOWARD vs REVERSE Lay I see agreat deal of differance, Our Dept is Upgradeing our Supply Hose, we only have approx 22 Hydrants in the City and Flow Rates vary from place to place but generaly are at or above 450gpm, I know compared to some thats weak but would 5 Inch still work better than 3 Inch under a Worst Flow Scenario.
Here today for a Safer Tomorrow
Five Inch LDH / 3 Inch Intake
Just would like to get some input on the following.
When using 5 Inch LDH, do you connect to your pumper's steamer or do you reduce it and go into a smaller intake. If you have operated both ways in the past, what were your results? what kind of flow rates did you oberserve?
Back from the dead after almost 8 years
Nice to see someone who can use the search function!
We use piston valves on our steamer connections with a pressure relief valve. The relief valve is important to get the air out of the line when you charge it, you would be surprised how much air it holds. Not something you want going through your pump. The relief valve also is a good indication when you have some lever puller on the pumper sitting on the plug that is being over zealous with the throttle on your supply line. I believe most LDH is rated at 200 psi so you don't want to go crazy with the pressure on them.
The piston valves are a bit of a hassle to take off when you draft, however. There may be valves available that do both, allow hook up to a supply line or to hard suction for drafting.