4500PSI seems a little high for a Bulldog. Subscribed as I'm looking for improvements for my Bulldog.
Quote from: Tonycalves on September 14, 2018, 04:00:35 PM4500PSI seems a little high for a Bulldog. Subscribed as I'm looking for improvements for my Bulldog.It is high. The valve body (and especially its threads) and receiver must withstand the full 4500psi. The valve is not held in with valve screws though, but rather captive in front of a smaller hole in the receiver. Of course, that is no guarantee that the receiver can handle it. At least anecdotally, other have had success without issue, but again that is NO replacement for proper pressure testing. I have understood the air tube has been tested to 10k psi, but not the entire assembly. It is important to understand that on this design, the valve thimble end threads (where the reservoir tube screws on) will always see the full 4500psi, while the receiver and rest of the valve body would see 4500psi in the event that the regulator failed (or in this case some psi between the 4500 and 3000 set point, since the plenum will be larger than the reservoir).If anyone takes it upon themselves to exceet 3k psi, they do so at their own risk. The only claim for testing that I have seen in written format is that of the Pitbull reservoir up to 10k psi.I am actually curious if JSAR has done testing to failure of their valve and its threads. If so, I am curious of the failure pressure.
Thanks Travis.They claim it was tested to 10K psi, so at 4500 psi, is only 2.22 times the working pressure. I am curious why they stopped at 10K psi, and what the actual failure point is or was (or did they actually go to failure).
My power goals are in the opposite direction to yours. The Huma reg does not have much leeway with vent hole, so make sure you you have your plenum design final. That could be an expensive hole.I would think that the BD hammer and spring are more than enough for a SS valve. A no pre-load and gapped spring might buy you some efficiency.