FX What happens if you shoot an FX with the tank pressure below the regulator pressure?

That's an interesting phenomenon, @Ta-Ta Toothie
Not disputing it.
I'm just not able to wrap my head around it and visualize
How does that occur, please

just my too curious
Edward
That's just how the dynamic valve is designed. The back of the stem protrudes to the outside of the gun, so when the reg falls below the the set pressure, the valve gets overwhelmed by the hammer over driving it. This is of course for the the dynamic and possibly the drs, I don't believe the impact suffers this.
 
If it goes too low you run the risk of wiping out baffles for one thing. Another possibly is banging the hammer off the back of the valve.
I tend to lean this way. A regulator that has nothing to regulate is less the issue than items tuned for a certain environment id think. I've dipped my impact and dreamline just a couple bar below reg with no ill consequences but im not going to tell anybody is suggested.
 
I have a complete valve kit coming on Monday from Utah to repair my stupid mistake. I degassed my Panthera by dry firing. Not good.
Yup, a while back when I installed my HUMA reg and couldn't degass it with the screw, I asked HUMA how to proceed, they said shoot it down. Completely wrong! My valve got hung open, pushed it back in and the dam thing leaked. One of the o-rings got damaged, valve was ok. Lesson learned. This is a completely different setup from the impact etc. and procedures for those should not be followed on the dynamic platform.
 
Worst case scenario, you can damage the valve, seals ot knock the seat out of place.
Ok, so its the airgun equivalent of not dry firing a .22 to avoid damage to the firing pin.

Am I right that the system is designed so that when the hammer strikes the valve pin it encounters a certain amount of resistance from the pressure in the plenum. Take away that pressure and the pin or its seals could be damaged? That actually makes sense. Thank you.
 
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