Help with my sprinkler valve

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
User avatar
covey12
Specialist 2
Specialist 2
Posts: 260
Joined: Sat Aug 23, 2008 4:36 pm

Sun Mar 01, 2009 12:43 pm

i looked in the trouble shooting guide, but im not sure why this happens still, when i pump up my chamber, the air leaks out of the barrel slowly, but when i press the pilot valve, all the air comes out of that, and the barrel stops leaking. any help is appreciated thanks
User avatar
jrrdw
Moderator
Moderator
United States of America
Posts: 6572
Joined: Wed Nov 16, 2005 5:11 pm
Location: Maryland
Has thanked: 39 times
Been thanked: 22 times
Contact:

Donating Members

Sun Mar 01, 2009 12:46 pm

Make sure the housing doesn't have any kind of flaw where the diaphram rest around the edges. What make valve is it and post pics of it disassembled.
User avatar
trigun
Specialist
Specialist
Posts: 161
Joined: Mon Jan 26, 2009 11:21 pm
Location: Illinois

Sun Mar 01, 2009 12:50 pm

Take apart the valve and check the diaphram and seat for any debris even if it is the smallest piece of metal or wood.

Also if all the equilization hole is too big then all the air will go out of the pilot hole.
Note epoxy cure time very important barrels are hard to remove from the wall
User avatar
covey12
Specialist 2
Specialist 2
Posts: 260
Joined: Sat Aug 23, 2008 4:36 pm

Sun Mar 01, 2009 12:51 pm

k ill try and get some pics up of it
pharmboy
Private 3
Private 3
United States of America
Posts: 59
Joined: Fri Feb 20, 2009 6:25 pm

Sun Mar 01, 2009 2:02 pm

Also, does your sprinkler valve have a guide tube? It's little metal tube about 1/16" diameter coming up through the center of the diaphragm. If so, you'll need to seal that w/ epoxy as well. It vents to the exit side of the valve, so if you've got one, just apply a little epoxy to the hole facing the exit, and then suck gently on the guide tube until you feel resistance, meaning that the epoxy has completely filled the passage.
User avatar
covey12
Specialist 2
Specialist 2
Posts: 260
Joined: Sat Aug 23, 2008 4:36 pm

Sun Mar 01, 2009 7:08 pm

pharmboy wrote:Also, does your sprinkler valve have a guide tube? It's little metal tube about 1/16" diameter coming up through the center of the diaphragm. If so, you'll need to seal that w/ epoxy as well. It vents to the exit side of the valve, so if you've got one, just apply a little epoxy to the hole facing the exit, and then suck gently on the guide tube until you feel resistance, meaning that the epoxy has completely filled the passage.
no guide valve but thanks anyways
User avatar
covey12
Specialist 2
Specialist 2
Posts: 260
Joined: Sat Aug 23, 2008 4:36 pm

Sun Mar 01, 2009 7:09 pm

hey i looked at the sprinkler, and it appears that its defective, there is a hole thin the diaphragm that is pretty big, and doesnt look right, so im getting a new valve
User avatar
daberno123
Corporal
Corporal
Posts: 594
Joined: Mon Nov 19, 2007 5:56 pm
Location: Ohio

Sun Mar 01, 2009 7:33 pm

Really? Could you post a picture of the hole?
User avatar
covey12
Specialist 2
Specialist 2
Posts: 260
Joined: Sat Aug 23, 2008 4:36 pm

Sun Mar 01, 2009 7:36 pm

daberno123 wrote:Really? Could you post a picture of the hole?
yea i will when i take the pics, but its more of a rip than a hole
User avatar
psycix
Sergeant Major 4
Sergeant Major 4
Posts: 3684
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands

Donating Members

Mon Mar 02, 2009 2:26 pm

Some valves are meant to have a hole.
Its called an equalization hole.
If its a rip, then its not good ofcourse. But when in doubt, just show us the pic.
Till the day I'm dieing, I'll keep them spuddies flying, 'cause I can!

Spudfiles steam group, join!
User avatar
covey12
Specialist 2
Specialist 2
Posts: 260
Joined: Sat Aug 23, 2008 4:36 pm

Sun Mar 08, 2009 8:49 pm

i cant figure out how to delete this, so if a moderators sees this can they? i fixed the valve
User avatar
sgort87
Corporal 5
Corporal 5
Posts: 994
Joined: Sun Sep 18, 2005 10:32 am
Location: Lockport, Illinois

Donating Members

Sun Mar 08, 2009 10:06 pm

We usually just leave the thread up and let it sink out of sight as new threads are posted.

I mean... we could, but there's no real reason to bother.
User avatar
psycix
Sergeant Major 4
Sergeant Major 4
Posts: 3684
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands

Donating Members

Mon Mar 09, 2009 6:49 am

How you fixed it?
That will make this thread worthy to exist further. It will provide some useful information for people with the same problems in the future you see?
Till the day I'm dieing, I'll keep them spuddies flying, 'cause I can!

Spudfiles steam group, join!
User avatar
Hubb
First Sergeant 2
First Sergeant 2
Posts: 2390
Joined: Mon May 28, 2007 8:39 am
Location: South Georgia
Contact:

Tue Mar 10, 2009 7:46 am

Don't trash the valve. Why not upgrade it...

You can replace the old diaphragm valve with a new one and get even better performance than what you would have normally gotten.
User avatar
covey12
Specialist 2
Specialist 2
Posts: 260
Joined: Sat Aug 23, 2008 4:36 pm

Tue Mar 10, 2009 6:24 pm

um just to let anyone on here who sees this, the rip was not the problem (although it could have been a factor), the hole i drilled for my pilot was to big and the bring would go into the pilot, and the valve would never equalize right, so basically i made the wrong measurements

i fixed by buying a new valve
Post Reply