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Updated on November 30, 2007
paulj
Participant
November 30, 2007 at 12:20 am
Q:

Tank Gauge

Is it possible to add a gauge ,to see how much tank pressure is left in tank,instead of counting shots to judge when to refill. And where would you drill and tap. Thanks

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All Replies

Viewing 15 replies - 1 through 15 (of 40 total)

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pablouk
Participant
February 3, 2011 at 10:23 pm

johndaven is a bot. Ignore.

phat96
Participant
February 3, 2011 at 9:58 pm
quote baz:

all I get is photobucket deleted or moved photos

johndaven
Participant
February 3, 2011 at 7:12 am

forgot to say it before, but also add in advice on how to make it better, carry on 🙄 🙄

xaloc
Participant
December 25, 2008 at 7:24 pm

Thank you, happy Christmas to you too.

Pretty good around here. I am still alive and with all my fingers working. loaded the tank many times and never explode….. 😀 😀 😀

savagesam
Participant
December 25, 2008 at 3:11 pm

Xaloc, Merry Christmas. How is everything over there?

xaloc
Participant
December 25, 2008 at 11:23 am

Reply To: Regarding "Grips"

savagesam
Participant
December 20, 2008 at 4:34 pm

Bump. Any news?

walter-pacheco
Participant
June 16, 2008 at 1:59 am
quote baz:

Have a look at this picture with a valve stem in place, as you can see the big hole is now closed and it only opens when the gun is fired or the bottle is filled, so when the gun is charged with air the only time that any pressure should go up the stem is when you shoot the gun, so you would have to be quick to check the gauge reading whilst taking a shot. So this is why the small hole is drilled paralell to the stem and up under the gauge collar to allow air to be fed to the gauge all the time. I hope you appreciate me taking the time to strip my bottle down to take a picture of the valve with the stem in place. Thanks Baz.

Thank you BAZ.
Make the piece that is in the red picture, in the side B of the this photo the tank, here there is 3000 psi, in the side A the pressure is 2500 psi, I thought that the gauges were bad, I already proved all of them and they work well, because it will be this difference of pressure.

Walter Pacheco.
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y
Participant
June 15, 2008 at 1:07 am
quote baz:

Have a look at this picture with a valve stem in place, as you can see the big hole is now closed and it only opens when the gun is fired or the bottle is filled, so when the gun is charged with air the only time that any pressure should go up the stem is when you shoot the gun, so you would have to be quick to check the gauge reading whilst taking a shot. So this is why the small hole is drilled paralell to the stem and up under the gauge collar to allow air to be fed to the gauge all the time. I hope you appreciate me taking the time to strip my bottle down to take a picture of the valve with the stem in place. Thanks Baz.

Well said !!

baz
Participant
June 14, 2008 at 10:58 pm

Have a look at this picture with a valve stem in place, as you can see the big hole is now closed and it only opens when the gun is fired or the bottle is filled, so when the gun is charged with air the only time that any pressure should go up the stem is when you shoot the gun, so you would have to be quick to check the gauge reading whilst taking a shot. So this is why the small hole is drilled paralell to the stem and up under the gauge collar to allow air to be fed to the gauge all the time. I hope you appreciate me taking the time to strip my bottle down to take a picture of the valve with the stem in place. Thanks Baz.

walter-pacheco
Participant
June 13, 2008 at 2:11 pm
quote baz:

Here’s abit more information and a picture o show how I got the air out of the bottle and up to the gauge, its quite simple, I drilled a small 1mm hole between the threads and the stem seat and then drilled another hole in the centre of the body betwen the two collar o-rings. In answer to your question Cygnus, the pressure between the o-rings under the guage collar is not a problem as there is a very small volume of air due to the close tollerance of the collar, this type of set-up is used alot on rotary fittings in hydrolics and pnuematics, its also used on probe-type fill adaptors on alot of modern pre-charged air rifles.

BAZ
Please he places photos with more details of this piece, measured etc.

WP

walter-pacheco
Participant
June 13, 2008 at 1:59 pm
quote Shadoh:

To supply the ring that holds the psi gauge with air from the bottle.

And the big hole is not sufficient so that the gauge reads the pressure.

On having placed it, the gauge winds in the piece of bronze and this one reads the internal pressure.
WP

WP

shadoh
Participant
June 13, 2008 at 2:57 am

To supply the ring that holds the psi gauge with air from the bottle.

walter-pacheco
Participant
June 13, 2008 at 2:42 am
quote baz:

Here’s abit more information and a picture o show how I got the air out of the bottle and up to the gauge, its quite simple, I drilled a small 1mm hole between the threads and the stem seat and then drilled another hole in the centre of the body betwen the two collar o-rings. In answer to your question Cygnus, the pressure between the o-rings under the guage collar is not a problem as there is a very small volume of air due to the close tollerance of the collar, this type of set-up is used alot on rotary fittings in hydrolics and pnuematics, its also used on probe-type fill adaptors on alot of modern pre-charged air rifles.

What is the purpose of the hole of 1 mm.

WP

savagesam
Participant
May 15, 2008 at 12:37 pm

Why doesn’t someone (Baz) just make some and offer for sale ?

Viewing 15 replies - 1 through 15 (of 40 total)

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