pressure rating

b-nice · Mon Sep 12, 2005 7:23 pm

would a 4'' * 24'' chamber be to much to use nsf-dwv fittings

spudshot · Mon Sep 12, 2005 7:32 pm

4" pressure rated pipe is fine for pneumatic or combustion, though you shouldnt use NSF-DWV fittings on anything but combustions, NSF-PW fittings are the correct type for pneumatic cannons

boilingleadbath · Tue Sep 13, 2005 1:42 pm

I thought you'd be a little more cautious, spudshot, science devilsmed69 had a chamber failure; at least going as far as to say that DWV isn't <i>recomended</i> for combustions...

spudshot · Tue Sep 13, 2005 2:18 pm

i woudnt say that, DWV fittings have been used on combustions for years, the only thing you shouldnt have DWV on a combustion is your pipe and your plug, cleanout plugs can and will shatter very easily, get an NSF PW plug or combine a male adapter and a plug

b-nice · Wed Sep 14, 2005 2:30 pm

i use a 2'' plug with the hex end shaved smooth and insert the factory edge into the chamber and the other to my handle

Bedo · Sun Mar 05, 2006 12:37 am

im not sure if this is a dumb question

im buying a 3" to 1" bushing off mcmaster and it says it is NSF-61(im lookin for NSF-PW...of course) is that the same thing as NSF-PW or what? plz help

boilingleadbath · Sun Mar 05, 2006 4:49 am

Tecnicaly, it's not - NSF-61 only rates for health effects.
However, the construction of them is robust and the socket lengths long, so it should be fine for pressure... which makes scence, as most water for consumption is under pressure in the lines.