What Regulator type.

[David WassonParticipant @davidwasson11489]

Okay, sounds like a plan. The problem I see, is that drilled holes are usually not really round or concentric. Valve seat and press fit surfaces, especially in a regulator, should really be drilled and then bored, or, at least reamed. Perhaps this will all work out well for you.

David

[Paul GilbyParticipant @paulgilby53625]

Hi all,

This is my first post on this site so go easy on me please.

I built a Holmside and I fitted a gas type 3/8" full bore ball valve, this has given great service the engine has now covered nearly 2000 miles. Hydraulic tests are no trouble as the seal is 100%, but to do a proper test including the super heater the regulator should be open and the steam inlet to the cylinders blanked off. Getting the 90 deg. opening from the 70 deg. regulator handle movement is easily achieved by shortening the length of the operating arms on the valve. I used the bottom half of the Stroudley casting, threaded for the valve and soldered into a disc that is sandwiched between the boiler and the dome, cutouts are made for the operating arms. Be careful with the regulator operating shaft as if made to the drawing it will pull straight through the gland, in needs to be a larger diameter.

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