Blitz Nozzles

[jlab]

Blitz nozzles are made with a 3 inch intake. In the FDNY, where they are used, are they fed with a 2 1/2 line or do companies carry 3 inch hose specifically for use with a Blitz nozzle or do they ise a 3 1/2 inch line to supply the nozzle ?

 

[GFD70]

I believe they come standard with 2.5 couplings. Most 3" hose has 2.5" couplings. I'm not sure what the FDNY's 3.5" hose coupling sizes are but they're also probably 2.5" couplings.

 

[RCL]

I believe they come standard with 2.5 couplings. Most 3" hose has 2.5" couplings. I'm not sure what the FDNY's 3.5" hose coupling sizes are but they're also probably 2.5" couplings.

I just looked. TFT make 3 different inlet sizes. 2.5, 3, 3.15. All with 2.5 outlets. Pretty much no matter what you do your limited to 500 gpms. Because thats what its designed for. The typical goto is 2.5. We used 3" with 2.5 couplings just for friction loss reasons. Our Elkhart RAN was also preconnected to 200' of 3 inch. I would assume FDNY would just use 2.5 hose straight from the bed or hirise packs as that gives you the best options on lengths, since they use dead loads, not preconnects.

 

[Capttomo]

I just looked. TFT make 3 different inlet sizes. 2.5, 3, 3.15. All with 2.5 outlets. Pretty much no matter what you do your limited to 500 gpms. Because thats what its designed for. The typical goto is 2.5. We used 3" with 2.5 couplings just for friction loss reasons. Our Elkhart RAN was also preconnected to 200' of 3 inch. I would assume FDNY would just use 2.5 hose straight from the bed or hirise packs as that gives you the best options on lengths, since they use dead loads, not preconnects.

A 2.5 inch hose can move 500 GPM at 55psi friction loss per 100 feet.

 

[RCL]

A 2.5 inch hose can move 500 GPM at 55psi friction loss per 100 feet.

I think the 3 inch we used was closer to 40 per 100. I dont remember off hand. I want to say it was like 37 per 100. I'd have to look and see if I still have the friction loss cards we had.