Okay, I wasn't too worried about the blowgun. My main concern was with the QEV.

Does anyone know of a good pump (besides a shock pump) that will go up to 350-500 psi?

Well, I'm not going up to 3000 psi, its just that all the other seamless steel components (elbows, etc.) are rated to that pressure. The normal steel parts are rated to 150, and this is not sufficient.

@ daxspudder
I am limited by the QEV, which I know can go higher than 125 psi. (see post above ...

Sorry, I am using 3/4 inch pipe

Okay, after destroying several pvc spudguns (the plastic just couldn't hold up to my awesomeness), I have decided to build a high pressure metal spudgun.

Most parts on McMaster-Carr, are labeled with the pressure rating but several aren't.

1. Can Sch 80 Seamless Steel pipe handle 3000 psi like all ...

Thanks!

Now if only my pump could go that high.

What is the maximum pressure the McMaster QEV can withstand?

I know that it says something like 125 PSI, but with people talking about using QEVs at around 200PSI I am wondering if this is true.