Materials for pressure resistant component

[gaetcorr 0]

I should print components with channels through which air passes at about 3-4bar of pressure.  The components work at room temperature in non-corrosive environments.

 Someone could advise me on the most suitable material to resist such and indicate any print settings.

 Thanks

[geert_2 557]

I would be very carefull with pressurised 3D-prints. Layer-adhesion is far lower than in parts from solid casts. They might burst open.

 

If I had to do it, I would use very thick walls, solid infill, print slow, and switch off the cooling fan for best layer adhesion. Or probably I would print one original, carefully post-process and smooth it, and then make a silicone mould from it and cast some suitable tough UV-resistant epoxy or PU in that mould?