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Old 11-20-2012, 02:54 PM #1
original_skooter
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Geo Solenoid Operating Pressure?

I couldn't seem to find it so I thought I would ask. What is the operating pressure range the solenoid is rated for?
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Old 11-20-2012, 03:26 PM #2
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Because the solenoid receives air directly from the inline regulator...the normal output pressure for the "Geo" is the low to mid 120-130 range. This is to prevent the solenoid over pressurizing and unseating the gasket.

It is important that you pay attention to the spring that is in the regulator. Since the reg on the newer Geo2/2.1/3 is the SL3 style...you have to make sure that there is a "Geo" SL spring as opposed to an Ego SL spring.

This is all becuase there is no secondary reduction of pressure via an LPR regulator on a Geo.
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Old 11-20-2012, 03:34 PM #3
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So you are saying that the operating range of the solenoid is 120-130 PSI?
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Old 11-20-2012, 03:51 PM #4
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It's a little more complicated than that to be honest.

The solenoid is used as a supplier of air to the bolt system. This supply of air is used both to operate the bolt back and forth...as well as launch paint down the barrel.

The solenoid receives that supply of air from the inline regulator. By increasing or decreasing that air supply...you not only supply air to the solenoid..but you vary the overall output velocity of the paintball by increasing or decreasing that air supply.

The Regulator has a dynamic range on the original Geo. At the specified "Starting Point"...when setting the reg to a factory condition if you gauge it...you will read somewhere in the range indicated. As you increase the regulator pressure...the velocity goes up accordingly. As you lower the velocity...it will drop accordingly.

My point to you was that the Geo has a much lower operating pressure than that of an Ego becuase there is no LPR regulator. We have to keep the pressure on the lower side to prevent popping the gasket or bleeding over O rings inside the solenoid.

Newer Geos have a different regulator...as well as a different solenoid in the Geo3...but in all cases...you have to run a lower pressure than in an Ego. So...you have to make sure that you are running the appropriate Spring inside the regulator.

This can make it a little tricky if you are changing regulators...just wanting you to be aware of that.
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Old 11-20-2012, 03:54 PM #5
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Totally understand all of that. My main concern is how high of an input pressure can it take before it starts to have problems.
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Old 11-20-2012, 04:01 PM #6
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That's a tough question to answer. Given all things are in good shape...you should be able to shoot a velocity well over 300fps with no leaks to the solenoid. The O rings on the Spool pack are fairly delicate...so they would allow leak...and the Gasket would pop and unseat before you did any real damage to the actual solenoid if you ran too high a pressure.

Becuase the solenoid is direct mounted to the body...and the air is fed directly from the solenoid to the bolt system...there isn't a way of gauging the pressure. You can only tell you have a problem if you have a leak...or a velocity problem. 90% of the time...the problems are not with the solenoid as a unit...but with components within the solenoid. The pilot may become weak over time...the manifold may develop leaks...or the back check ball wears down and has a difficult time moving as it should to release air from the front of the bolt.

The question I have for you is....

What is it that is happening that would lead you to have this type of question? Are you experiencing a problem with the marker that you are trying to troubleshoot? Or are you just asking in general?
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Old 11-20-2012, 04:59 PM #7
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No issues. Just curious of operating range.
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Old 11-21-2012, 04:49 AM #8
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Which Geo solenoid? The Geo3 will generally work at a slightly higher range than the Geo3 due to the nature of the assembly and the gasket capture.
As a rule of thumb, both solenoids should be good for around 16-psi maximum before leaks will occur.
Jack

Last edited by Jack Wood : 11-21-2012 at 04:51 AM.
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Old 11-21-2012, 06:55 AM #9
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Quote:
Originally Posted by Jack Wood View Post
Which Geo solenoid? The Geo3 will generally work at a slightly higher range than the Geo3 due to the nature of the assembly and the gasket capture.
As a rule of thumb, both solenoids should be good for around 16-psi maximum before leaks will occur.
Jack
Jack, your post just confused me...
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Last edited by original_skooter : 11-21-2012 at 07:00 AM.
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Old 11-22-2012, 05:12 AM #10
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Quote:
Originally Posted by original_skooter View Post
Jack, your post just confused me...
That's because I'm stupid, sorry.

"The Geo3 will generally work at a slightly higher range than the Geo2" is what it should say.

Jack
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Old 11-22-2012, 02:02 PM #11
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Quote:
Originally Posted by Jack Wood View Post
That's because I'm stupid, sorry.

"The Geo3 will generally work at a slightly higher range than the Geo2" is what it should say.

Jack
I thought that is what you meant but just wanted to be sure. And the max operating pressure is 160 psi? I ask all of this because physics is a fun and I feel like crunching some numbers. Can you message me the total volume or dimensions of the back cap chamber?
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