Sdr21 pressure ratings...

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killagorrila99
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Sun Oct 01, 2006 5:23 am

Does anyone know what SDR21 is rated to?
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mark.f
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Sun Oct 01, 2006 7:20 am

200 PSI, I believe.
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CS
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Sun Oct 01, 2006 10:34 am

Yes, it is 200 PSI.
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killagorrila99
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Sun Oct 01, 2006 8:25 pm

So I could use SDR21 as a pressure chamber? SICKNESS! :twisted:
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frankrede
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Sun Oct 01, 2006 9:53 pm

I wouldnt.
Its fragile and has a relatively low pressure rating, but you do what you want.
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MrCrowley
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Sun Oct 01, 2006 10:57 pm

frankrede wrote:I wouldnt.
Its fragile and has a relatively low pressure rating, but you do what you want.
umm relativily low....they just said 200psi
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CS
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Sun Oct 01, 2006 11:34 pm

Not sure what he was talking about.

The reason why it is sleeved is to protect it from external loads. Such as being stepped on, dropped, hit on the wall, etc.
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frankrede
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Mon Oct 02, 2006 12:31 am

Im sorry 200psi for me seems low.
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killagorrila99
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Mon Oct 02, 2006 12:43 am

Well I dont think its low at all... :roll:
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nicholai
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Mon Oct 02, 2006 12:53 am

killagorrila99 wrote:Well I dont think its low at all... :roll:
i do considering that its thin wall makes it somewhat sensetive to sudden shock (or external loads like pimp said:). Drop a good sized (3 maybe 4 feet) section of it full of 120 psi and see what happens.

I honestly dont know why you'd even want to use it as a pressure chamber (pneumatic cannon i assume). Why not use sch 40 or 80? The gain in chamber volume from sdr 21 to sch 40 is not significant enough to disregard a safety hazard. Considering that 1.5" sch 40 is rated at 330 psi id much rather use that for any sort of pressure chamber even if its a mini pneumatic.
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