Pumping to a gated wye. - Firehouse Forums - Firefighting …
2001年8月12日 · Certainly the relief valve on the wye was set at 140 psi back at the station after field testing. If not shame on you! Using a wye without a relief puts the crew at big time risk. …
NFPA 1410 Engine Company Drills - Firehouse Forums
2014年11月16日 · To achieve the recommended flow in the gated wye scenario some things would depend on the equipment your department uses in order to figure out the math. For my …
Locking Gated Wye Handles - Firehouse Forums
2012年4月2日 · The reason that the gated wye is a concern to me is that when used in a horizontal standpipe the wye is not constantly manned. As the hose is dragged or as …
2 1/2 to 1 3/4 - Firehouse Forums - Firefighting Discussion
2008年7月23日 · We would not put a gated Wye on a 2-1/2 in hose. We consider the max flow of a 2-1/2 inch to be 300gpm, and the max flow on a 1-3/4 to be 200 each. Therefore, two 1-3/4 …
Water Thiefs and LDH Manifolds - Firehouse Forums
2004年8月24日 · We carry two LDH appliances on the rear step of our Engine, which carries 5000' 5" and has the primary mission of water supply. A Gated Wye and a Water Thief. The 5" …
Tanker Fill Appliance - Draining LDH before disconnect
2008年2月18日 · Closes the valves on the gated wye; Re-opens the fill valve on the back of the tanker for a couple of seconds, then closes it again. By doing this, the access water and …
Crosslay Hose Loads - Firehouse Forums - Firefighting Discussion
1999年12月23日 · The nozzle and gated wye are strapped together. 1 FF pulls the wye and nozzle and goes. 1 FF then helps get the remaining 3" out of the tray (Which is minimal …
2 1/2 to 1 3/4 - Firehouse Forums - Firefighting Discussion
2008年7月29日 · Now. In theory 2 1 3/4" lines through the gated wye can outflow a 2 1/2" supply. Unless you restrict the flow of the 1 3/4. You restrict the flow to save the 2 1/2. Just because …
High Rise Packs/Hose - Firehouse Forums - Firefighting Discussion
2001年8月16日 · The friction loss of the standpipe should be calculated in by the D/O. The friction loss of a 4,5 or even 6 inch standpipe is very minimal compared to a leader line operation …
friction loss - Firehouse Forums - Firefighting Discussion
2008年7月24日 · In the R-6 Engine Academy this spring, they told us that the old 5psi/appliance friction loss is outdated. As kd7fds said.. the loss is minimal.. something like less than 0.5 psi …