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Piston Valve Vent Size.
Posted: Thu Nov 30, 2006 4:12 pm
by Bluetooth
I am building a piston valve encased in a 1.5" tee. Would a .25" blowgun be enough to vent it or should i buy a .5" ball valve?
Posted: Thu Nov 30, 2006 4:18 pm
by MisterSteve124
Well it would be enough but a ball valve would probably be faster
Posted: Thu Nov 30, 2006 4:25 pm
by Pete Zaria
As Steve said, a blowgun will do it, but the ball valve will exhaust it faster and probably increase power a bit, but I doubt the change would be significant.
Peace,
Pete Zaria.
Posted: Thu Nov 30, 2006 5:34 pm
by Bluetooth
Thnx. I think i'll just use the blowgun. It's easier to open (the whole gun doesn't move) and I have one.
Posted: Thu Nov 30, 2006 6:29 pm
by squeaks
I think now is a time you should refer to the GGDT and play around with your exhaust.
Posted: Thu Nov 30, 2006 6:34 pm
by Bluetooth
I already tried that and it said it would work i was just making sure. One more question even though this doesn't really have to do with it:On the back of the tee should i put a normal plug with a short piston or a threaded female adapter and a cleanout plug and a longer piston?
Posted: Thu Nov 30, 2006 6:49 pm
by SpudStuff
It is unlikley that the blowgun will work. The orfice of them is 1/32-1/16" on the standard ones. Get a 3/8" ball valve. Thay are easy to open and WILL increace power.
Posted: Thu Nov 30, 2006 7:03 pm
by squeaks
#1 If you have the ability to put an o-ring on it I would go with the normal plug with screws. If not go with a female adapter and threaded plug.(or threaded T with plug)
#2 Do not use a cleanout plug, use a pressure rated one.
Posted: Thu Nov 30, 2006 7:20 pm
by Bluetooth
Well i'm not putting o-rings so normal plug and ill just buy the ball valve then. Thnx for your help. I plan on going to Home Depot over the weekend and building it.
Posted: Thu Nov 30, 2006 8:33 pm
by squeaks
No, no, no. IF YOU CAN put on o-rings, go with the normal plug and screws. Otherwise air will leak out the back and through the screw plugs. If you're not you should use a threaded plug.
Posted: Thu Nov 30, 2006 8:40 pm
by Bluetooth
No, no, no. I'M NOT PUTTING o-rings and im still glueing the plug in, the screws are just for strength so the piston doesn't push the plug out.
Posted: Thu Nov 30, 2006 9:50 pm
by noname
Better hope you make it right, I wouldn't want to waste
$3 on a plug
$1.50 on a T
and another $7 if you have threaded bushings cemented in if the piston gets broken or something else goes wrong.
Posted: Fri Dec 01, 2006 12:12 am
by squeaks
$1.50 on a T!!!! Yeah right! If you can find a 2.5" or 3" T for $1.50 I'll scream the theme to Barney over the intercom. A 3" T would ring me up about $7-$10.
Posted: Fri Dec 01, 2006 1:31 am
by noname
Ever read the original post?
"I am building a piston valve encased in a 1.5" tee."
Posted: Fri Dec 01, 2006 8:40 am
by squeaks
oh, hay, must have gotten this thread mixed up with another one. that's a good point then. 1 1/2" Tee's are cheap. Sorry for the misconception.