No Bleed Valve SPG?

[pisauron]

Also, shooting it off seems like a good idea. Find one of those sniper types that could hit it from a mile away and have him do it

Kaboom? Yes rico, kaboom.

You can create a one way dpv from this.

 

[The Chairman]

My comedy show was cancelled tonight. Thanks for filling the gap!

 

[The Chairman]

Breaking the spg glass? Will that release the pressure?

Nope. There is a bourdon tube inside that you can snip. Pull the bezel, remove the hand, the face and walla!

 

[Pearlman]

There should be two screws at the back of the PG, remove that and the backplate will come off partially, exposing the bourdon tube. Use a long needle nose pliers to insert and snip at it then?

Edit: you didn’t tell if this is an off-the-shelf product or DIY. If it’s a product purchased then there should be a release mechanism or knob that is likely a bit jammed and needs a wrench to loosen it…
Maybe wear a full face motorcycle helmet first and then multiple layers of thick clothing including gloves and boots …

 

[iointerrupt]

I wouldn't touch it with the valve open. With the value closed though...

Assume a bore diameter of 0.25", about 6" long. By my math, at 3000psi, that gives 0.034 cubic feet of air inside of it.

Pretty sure venting that through the spiral leakage path of some pipe threads, is going to be ok.

 

[Pearlman]

Along with the other good suggestions, I’d say OP also needs to set up a few cameras strategically positioned before starting the process.

@240fps please! Thank You!

 

[SouthernSharktoothDiver]

@iointerrupt How many cubic feet in a BB gun?

Not trying to be snarky, but I could definitely see parts of this cursed system gaining energy rather quickly if things don't go well. I strongly recommend protecting your eyes, face, and any reproductive organs you might foresee a use for later in life. Unless you wanna prove Darwin right, that is?

 

[RIHappyDiver]

Is the knurled part a quick disconnect? Then just remove the male part und use a punch or similar to carefully depress the valve in the female part.

This is what I was thinking from the first post on, after OP stated there was a quick disconnect in the mix. Just wasn’t sure with high pressure.

Erik

 

[rjack321]

I'd turn the gas off, wrap a towel around the gauge (so if it pops off it is protected) put a wrench on the right arrow nut to stabilize it, and slowly undo the spg at the left arrow. When it starts hissing, stop and let it hiss until the hissing stops, then undo it a bit more until the hissing starts again. Repeat until loose.
View attachment 890808

This is the correct approach. That blue teflon tape start to leak in about 1/2 turn.

Alternatively, the QD may also leak down in a day or two on its own.

Putting the tank in water will contain zero force of anything - don't bother.

 

[Pavao]

This is what I was thinking from the first post on, after OP stated there was a quick disconnect in the mix. Just wasn’t sure with high pressure.

Erik

That is not the same as your inflator, in OPs case, his connection has 3000PSI of pressure.
Could be just as easy to unplug, I wouldn’t know, I have never tried to undo a quick disconnect which was pressurized to 3k psi