GTA

All Springer/NP/PCP Air Gun Discussion General => PCP/CO2/HPA Air Gun Gates "The Darkside" => Topic started by: Stefan on September 28, 2011, 03:04:13 PM

Title: Fill station question
Post by: Stefan on September 28, 2011, 03:04:13 PM
Do you fellas maybe know whats the size and material for o rings that are commonly used on this type of fill station?

Title: Re: Fill station question
Post by: rsterne on September 28, 2011, 04:57:48 PM
I have no idea what the upper arrow might be pointing to.... If that is a Foster fitting, would it not be 1/8" NPT (tapered pipe thread)?.... If so, teflon tape is the usual sealant.... Have you removed it to check?....

The lower arrow, presumably, is for the bleed valve.... Usually these do not rely on an O-ring but have a plastic insert pressing on a metal seat.... Have you removed the bleed screw to examine it?.....

Bob
Title: Re: Fill station question
Post by: Stefan on September 28, 2011, 05:14:36 PM
I am referring to bleed screw
So its plastic? Well one of those two plastic rings is broken, and this is leaking air. I tried putting in -006 70 an 90 o ring, but it wont work.
where can I get the spares?
Title: Re: Fill station question
Post by: rsterne on September 28, 2011, 05:24:01 PM
The bleed screws I have seen are a flat plastic insert in the end of the screw.... tightening against a raised seat with a tiny hole.... do you have pics of yours?....

Bob

Title: Re: Fill station question
Post by: Stefan on September 28, 2011, 05:44:32 PM
here are the pictures


(http://img11.imageshack.us/img11/2891/imag0002rs.th.jpg) (http://imageshack.us/photo/my-images/11/imag0002rs.jpg/)
(http://img163.imageshack.us/img163/6898/imag0001pf.th.jpg) (http://imageshack.us/photo/my-images/163/imag0001pf.jpg/)


i just have one red left, there were two.
Title: Re: Fill station question
Post by: rsterne on September 28, 2011, 05:58:07 PM
OK I think I understand.... That bleed valve is a shuttle that moves sideways to uncover a hole?.... The wire clip retains it and there is an O-ring each side of the hole....

My guess is that they are Metric.... measure them with calipers.... Try a hydraulic shop for replacements....

Bob
Title: Re: Fill station question
Post by: Stefan on October 02, 2011, 07:01:50 PM
got info back from manufacturers.
its 010 urethane.
Title: Re: Fill station question
Post by: Stefan on November 23, 2011, 06:59:01 PM
it wasn't -010 urethane. maybe -005 because -006 is also big.
but i solved the problem in another way, thanks to my idea and a friend with lathe.

(http://img52.imageshack.us/img52/6672/imag0863y.th.jpg) (http://imageshack.us/photo/my-images/52/imag0863y.jpg/)
(http://img204.imageshack.us/img204/1039/imag0864z.th.jpg) (http://imageshack.us/photo/my-images/204/imag0864z.jpg/)
(http://img812.imageshack.us/img812/2537/imag0865v.th.jpg) (http://imageshack.us/photo/my-images/812/imag0865v.jpg/)

that busted benji pump helped me after all :D

one of the holes was sealed, and on another, we threaded it and added a part made of stainless steel, and bleed valve from benji pump was cut and threaded into it.
no more o ring problem.
Title: Re: Fill station question
Post by: TimmyMac1 on November 25, 2011, 12:34:48 PM
Quote from: Stefan on October 02, 2011, 07:01:50 PM
got info back from manufacturers.
its 010 urethane.

I have the 010 Urethane 90 durometer Mil Spec. $2 each
Push button bleeders are really nice but the orings need to be top niotch of they will fail regularly. Installing the hard stuff is tricky but it lasts a long time and is well worth the effort.
Mac1

310-327-3582