dumb question, but i need help
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Victortheman123
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how can you tell if your fittings are pressure rated? i just made a pneumatic co-axial and i am afraid they aren't pressure rated or dwv. i bought them from home depot btw. can some one help me out, ill take pictures if need be.
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windshrike
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There should be little writing on the fittings(check the edges). SCH 40 or 80 and NSF-PW should be on it.
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potatoflinger
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They are pressure rated if they say nsf-pw on them. If they say nsf-dwv on them, they aren't pressure rated.
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Victortheman123
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i checked but i don't see anything, i made a stupid mistake of already gluing them 
note: i wont be taking it up to that high or pressures, it just for messing around with in my back yard
note: i wont be taking it up to that high or pressures, it just for messing around with in my back yard
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windshrike
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DWV can burst at any pressure from 15 psi to 90 psi.
If it has no markings, are you sure that it is even PVC?
If it has no markings, are you sure that it is even PVC?
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Victortheman123
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its pvc, and it has markings, but none saying the schedule or its dwv or pw.
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Modderxtrordanare
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Take some pictures then.ill take pictures if need be.
If your camera does macro, take pictures of the writing too.
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Victortheman123
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sorry about the horrible quality, my camera was dying so i could even get flash [/img]
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Victortheman123
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well i guess ill just scrap it 
a day wasted.... but aah well, atleast i didn't get shards of pvc in my face
by the way, thanks for helping me out, it is appreciated greatly
a day wasted.... but aah well, atleast i didn't get shards of pvc in my face
by the way, thanks for helping me out, it is appreciated greatly
Last edited by Victortheman123 on Sat Oct 06, 2007 7:01 pm, edited 1 time in total.
Oh dear...
As far as I can tell, there isn't a single pressure rated fitting on the entire thing. Also, whatever is holding in that shrader valve doesn't look terribly sturdy.
As long as you don't take it over 10 psi, you should be fine. If you plan on actually using it for anything other than a pipe bomb, you should replace the fittings with NSF-PW ones.
As far as I can tell, there isn't a single pressure rated fitting on the entire thing. Also, whatever is holding in that shrader valve doesn't look terribly sturdy.
As long as you don't take it over 10 psi, you should be fine. If you plan on actually using it for anything other than a pipe bomb, you should replace the fittings with NSF-PW ones.
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Victortheman123
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where is a good place to get nsf-pw fittings? cause all the ones at home depot seem to be dwv
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windshrike
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Look around more, my HD has both, maybe you just missed them.