Proportioning valve help

[Mick Mc]

1/8 pipe should not leak, as it is a tapered seal thru the threads.
Is the proportioning valve cracked from twisting the 1/8 fitting to far in? (yes this has happened to me before)

Pictures?

Is the valve leaking or is one of the adapters leaking?
The 1/8 pipe should not leak, by design. (again if it was over tightened it could crack the valve, the tapered design keeps adding more and more force as you screw inward. I see cracks in stuff from pipe threads all the time)
The adapter from the brake line into the 1/8 pipe is my guess, for the leak


Mick