Union Chamber Piece

[Atlantis]

Does a union hold the same pressure as PVC pipe, I just need to know if it's safe to use as part of the chamber. I'm mostly concerned that the seal would'nt hold the air in.

[killagorrila99]

Of course it will if it has the same markings as the pipe. I used a union on my supersonic gun and it holds fine!

[MrCrowley]

i heard you cant get them pressure rated or something but people use them anyway on hybrids.

[Atlantis]

Where exactly was your Union?

[killagorrila99]

LOL !! if you cant find a 1 inch union dont build bd guns! Its just after the short section of 1 inch pipe, coming off the reducing adapter.

[Atlantis]

I've never seen your cannon. And what do you mean by bd guns? I just figure I should use a union instead of a threaded cap, so I can remove the piston more easily.

[ProfessorAmadeus]

Bd = Burst disc. Would this work for a piston cannon?

[killagorrila99]

Yea, but burst disks are better than pistons, why not just use one of them?

[MrCrowley]

theyre a pain and a hassle i think
dont most people use them for hybrids coz of BD's so i doubt you could use it has a part of a chamber to hold pressure.

[Atlantis]

Finally a real answer. I plan on making a gun with a 1.5" coaxial chamber, I had the idea of using 2 unions as part of it so I could remove a segment of the chamber and replace it with a higher diameter chamber for more chamber volume without changing length.