I am working on a westinghouse air brake stand for straight air. The main body has a number cast on it which is T1626. Are gaskets available for this or will I have to make my own? Any help is greatly appreciated.

Thanks, Rick.


enginman@gis.net

> I am working on a westinghouse air brake
> stand for straight air. The main body has a
> number cast on it which is T1626. Are
> gaskets available for this or will I have to
> make my own? Any help is greatly
> appreciated.

> Thanks, Rick.

Rick, the casting number doesn't cross over to the parts catalogs. I need more info. i.e., what brake schedule are you using, what type of valve, and what application are you using it in? My collection of WABCO/NYAB catalogs is about 2 feet thick. Do you have any other gasket numbers is the valve? Sometimes working backwards, I can identify the component that way.


nwstaybolt@reachone.com

> I am working on a westinghouse air brake
> stand for straight air. The main body has a
> number cast on it which is T1626. Are
> gaskets available for this or will I have to
> make my own? Any help is greatly
> appreciated.

> Thanks, Rick.

That is a pattern number, and for this particular one, there is no listing. Can you give us a number off another part of the valve?

It also could be that the number has been damaged and is really T1628 or T1629 (there are no other numbers even close), and these numbers appear on two different screw-on caps. If this is the case, you have an S-3 straight air valve. An S-3 is the one which has the handle operate in the vertical plane rather than horizontally. The only "gaskets" S-3 valves use are for the valve seats and the key seal (if you can call that a gasket).

You can still buy these valves new, for a price (MTO, around $800-$1000 each, green stuff in advance).

It's also much cheaper to make your own gaskets (viton, buna-n).

Pete

> That is a pattern number, and for this
> particular one, there is no listing. Can you
> give us a number off another part of the
> valve?

> It also could be that the number has been
> damaged and is really T1628 or T1629 (there
> are no other numbers even close), and these
> numbers appear on two different screw-on
> caps. If this is the case, you have an S-3
> straight air valve. An S-3 is the one which
> has the handle operate in the vertical plane
> rather than horizontally. The only
> "gaskets" S-3 valves use are for
> the valve seats and the key seal (if you can
> call that a gasket).

> You can still buy these valves new, for a
> price (MTO, around $800-$1000 each, green
> stuff in advance).

> It's also much cheaper to make your own
> gaskets (viton, buna-n).

> Pete
Pete, Thanks for the response. The operating handle is in the vertical plane, chances are this is an S3 as you suggest. The gaskets on the valves appear to be rubber but cannot tell what was on the rotating shaft to seal from the pressure side to the exhaust side ? Any ideas? What was used under the hex caps for gaskets?

Thanks, Rick.

enginman@gis.net

> I am working on a westinghouse air brake
> stand for straight air. The main body has a
> number cast on it which is T1626. Are
> gaskets available for this or will I have to
> make my own? Any help is greatly
> appreciated.

> Thanks, Rick.

If you have the original gaskets, and they are of molded manufacture, look at them and see if you can find the PC number. This is the part number. These are small numbers, so you may need to wash the gasket, be in good lighting and maybe use a magnifier.

Brian Norden

> Pete, Thanks for the response. The operating
> handle is in the vertical plane, chances are
> this is an S3 as you suggest. The gaskets on
> the valves appear to be rubber

WABCo Piece number 72433, rubber (and not plain isoprene or neoprene either).

You can buy these from WABCo, but beware: these are MTO (Made To Order), you'll probably have to buy 50 or 100 minimum, you'll have to wait for something like a 20 week delivery time, and there is a *price*

>but cannot
> tell what was on the rotating shaft to seal
> from the pressure side to the exhaust side ?

WABCo piece number 2426, leather, 1 11/16x1 5/16x1/8 (see pc 72433 above for purchasing details).

> Any ideas? What was used under the hex caps
> for gaskets?

Nothing. If they leak, don't use pipe dope on the threads; some re-machining is in order.