PSI ratings on cast plumbing

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   I found a "how to" on making a nerf rocket launcher using a 12g CO2 adapter and plumping fittings. I originally was going to use brass peices, but noticed a significantly lower price of cast plumbing fittings vs brass. Does anyone know if the cast have a high enough PSI rating to be able to handle the pressure? 

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oldpbnoob Members Profile Send Private Message Find Members Posts Add to Buddy List Platinum Member Not old, Not noob. May be Dave's grandma Joined: 04 February 2008 Location: Yankee Stadium Status: Offline Points: 5676	Post Options Post Reply Quote oldpbnoob Report Post Thanks(0) Quote Reply Topic: PSI ratings on cast plumbing Posted: 22 March 2009 at 8:00pm
	I found a "how to" on making a nerf rocket launcher using a 12g CO2 adapter and plumping fittings. I originally was going to use brass peices, but noticed a significantly lower price of cast plumbing fittings vs brass. Does anyone know if the cast have a high enough PSI rating to be able to handle the pressure?

merc Members Profile Send Private Message Find Members Posts Add to Buddy List Platinum Member American Scotchy Joined: 10 June 2002 Location: VA, USA Status: Offline Points: 7112	Post Options Post Reply Quote merc Report Post Thanks(0) Quote Reply Posted: 28 March 2009 at 9:34pm
	should be marked on them... i wouldent use anything not marked. IMO steel should be ok, however... look how thin the punctured seal of the 12g is, but also consider if this is something your gunna keep for a while put the extra $ into some quality fittings. brass wont rust and shouldent crack. cast can crack and will rust out over time.