Login    Register
User Information
We are a free and open
community, all are welcome.
Click here to Register
Who is online

In total there are 68 users online :: 4 registered, 0 hidden and 64 guests

Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Google Adsense [Bot] based on users active over the past 5 minutes

The Team
Global Moderators
global_moderators.png CS

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!
  • Author

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.
  • 0


Binary Blue
Posts: 40
Joined: Thu Sep 01, 2011 6:37 pm
Reputation: 0

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.
  • 0

User avatar
Major General
Major General
Posts: 1270
Joined: Sat Feb 20, 2010 6:38 am
Location: Pyongyang
Country: Korea, Democratic People's Republic of (kp)
Reputation: 7

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?
  • 0

User avatar
Posts: 70
Joined: Thu Jan 21, 2010 12:20 am
Reputation: 0

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
  • 0

Posts: 343
Joined: Thu Feb 16, 2012 5:23 pm
Location: Leesburg
Country: United States (us)
Reputation: 1

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.
  • 0

User avatar
Donating Member
Donating Member
Posts: 24904
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 112

Return to Construction Materials/Ammo Discussion

Who is online

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Google Adsense [Bot]

Reputation System ©'