[modeleng] Modern Material
- From: "Barrie Purslow" <bpduo@xxxxxxxxxxxxx>
- To: "Model Engineering List" <modeleng@xxxxxxxxxxxxx>
- Date: Tue, 27 Nov 2007 11:10:52 -0000
I am currently refurbishing a 5" gauge Simplex which has non ferrous cylinders.
The slide valves are rather badly scored so I have skimmed the top of the
cylinder block no problem but I am reluctant to skim the valve itself as it is
obviously not made of a material with good rubbing characteristics against the
cylinder block.
I have it in mind to make new valves out of carbon filled ptfe which I have
previously used for a regulator valve with good results but this duty is a
little more onerous.
Any thoughts anybody?
Barrie
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