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Safe Pressures for Brass BSPP Elbows from China

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Safe Pressures for Brass BSPP Elbows from China

Unread postAuthor: Binary Blue » Fri Mar 29, 2013 11:58 pm

I'm planning on using these brass BSPP elbows from China. They're the same as the ones being sold here:

http://www.ebay.com/itm/1-2-BSPP-Connec ... 4abcf3ff69

What pressure would they be safe to use at?

I don't plan on going any higher than 450 PSI.

Will these be suitable?

Also, will I need to use Teflon tape?

Attached picture shows the brass elbows and QEV.
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Unread postAuthor: Labtecpower » Sat Mar 30, 2013 4:39 am

I wouldn't take that setup above 300 psi personally :roll:

And yes, you will have to use thread sealant when assembling your gun.
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Unread postAuthor: Kilash » Mon May 13, 2013 6:45 pm

Dude, its says on the valve 8 kg per sq.cm max, which works out to 113 psi. 450 psi is a no no!

Unless that's the trigger pressure?
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Unread postAuthor: sagthegreat » Mon May 13, 2013 7:04 pm

Most valves can be taken to way higher pressures as they r made of steel as seen by some builds on the site, however I am worried bout those brass fittings, they look cheap and chinese made:P
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Unread postAuthor: jackssmirkingrevenge » Mon May 13, 2013 11:35 pm

Labtecpower wrote:I wouldn't take that setup above 300 psi personally :roll:

I would, happily.
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