Re: KC brake systems sizes

davidtltc Wrote:
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>
> K-1 and K-2 work just the same so the schematics
> you see are good for both.
> They even LOOK the same, but the internal ports
> are different for the different air volume.
> I am pretty sure the only exterior difference is
> that K-1 attaches with 2 bolts, and the K-2 with 3
> bolts. Probably to be sure they are mating with
> the correct cylinder."
>
The same concept was used with other air brake equipment.

For standard gauge passenger cars there were the L-1, L-2, and L-3 triple valves. The higher numbers went with larger cylinders. To make sure they were mated correctly, these also used a different number of mounting bolts: L-1 had 2 bolts, L-2 had 3 bolts, and the L-3 had 4 bolts.

Brian Norden