PumpPlayer
10-02-2006, 01:46 PM
I have an issue with an X-valve and it is my conclusion that the HP relief valve is NFG'd.
However, I want to make sure I didn't overlook anything so I'm going to post here and see if anyone cares to take a swing at it.
X-valve, secondhand to me a year ago, probably around 3 or 4 years old overall.
ULT, 4 shims.
Level 10, two shims, light spring (to shoot at 270 fps for a recent game)
Freshly cleaned and lubed, running on a 850 psi output Crossfire tank.
Reg springs in good condition and freshly greased
New o-ring on regulator piston (relief valve assembly), lightly lubricated before installation
When gassed up, the valve leaks out the back even after backing out the velocity all the way down to ~200 fps or so. It does not noticably leak more or less as the velocity is adjusted up. Fires and cycles flawlessly at 270-275 with little fluctuation despite the leak.
When the trigger is held down, the valve fires and the leak stops.
When the trigger is released, the on/off returns correctly and the leak resumes.
It can be played with and was fired for at least 1000 shots with no change in symptoms.
My diagnosis is that the regulator piston (relief valve) assembly needs replacement.
Does anyone else have any other ideas?
Just want to make sure I'm replacing the correct part.
What's the life span on them? Shouldn't they last a little longer than 3 years or so?
Thanks for looking.
However, I want to make sure I didn't overlook anything so I'm going to post here and see if anyone cares to take a swing at it.
X-valve, secondhand to me a year ago, probably around 3 or 4 years old overall.
ULT, 4 shims.
Level 10, two shims, light spring (to shoot at 270 fps for a recent game)
Freshly cleaned and lubed, running on a 850 psi output Crossfire tank.
Reg springs in good condition and freshly greased
New o-ring on regulator piston (relief valve assembly), lightly lubricated before installation
When gassed up, the valve leaks out the back even after backing out the velocity all the way down to ~200 fps or so. It does not noticably leak more or less as the velocity is adjusted up. Fires and cycles flawlessly at 270-275 with little fluctuation despite the leak.
When the trigger is held down, the valve fires and the leak stops.
When the trigger is released, the on/off returns correctly and the leak resumes.
It can be played with and was fired for at least 1000 shots with no change in symptoms.
My diagnosis is that the regulator piston (relief valve) assembly needs replacement.
Does anyone else have any other ideas?
Just want to make sure I'm replacing the correct part.
What's the life span on them? Shouldn't they last a little longer than 3 years or so?
Thanks for looking.