propex expansion is rated at1500psi....no shit ..the fittings wont break but at that pressure the pipe swells till it bursts at 1000 psi.....
@zoomzoomfire
12 жыл бұрын
I'm just curious in wich states are these rf pex legal?? And how much psi does it withstand?
@bobbtall
12 жыл бұрын
135psi @ 120 degrees
@matthewdiluzio7542
6 жыл бұрын
Wont that pex melt in a fire making the sprinklers useless??
@dusty6570
6 жыл бұрын
Matthew Diluzio you do realize the sprinklers would activate before it got that hot, right?
@matthewdiluzio7542
6 жыл бұрын
Yes I realize that, But fire gets into walls and ceilings as well, It don't matter the Pex is rated for fire anyway, But yes I know the heads will go off only if the fire is near it, That's all I was saying.
@dusty6570
6 жыл бұрын
Matthew Diluzio I have never seen a fire melt plastic sprinkler line. The heads have always kept it cool if enough.
@benjamincheney1897
5 жыл бұрын
If it concerns you do it copper.
@evanworthington3606
Жыл бұрын
@@dusty6570 as long as at least one downstream head was opened the pipe would have cold water flowing through it, right? So unless flame was lapping at the pex it would stay almost as cold as the water inside.
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