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piston valve live steam

Started by bambuko, Sep 29 2025 15:53

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bambuko

Sep 29 2025 15:53
I have drawings for two 2 1/2" gauge locos with piston valve cylinders.
Martin Evans's Black Five in ME 1984
and
Chris Barron's 9F
Neither appears to have either drain cocks or relief valves?
Is this usual practice in G3? or am I missing something, please?
Are there any other published designs for piston valve cylinders in G3?
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