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Southworth Engines Boiler Feed Pump
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alanfrost:
Turning valve face
alanfrost:
Turning spring locator
alanfrost:
milling valve wings
alanfrost:
finished valves
doubletop:
Alan

You made a nice job of those valves. I had a few failed attempts, but that was me trying to be smart and grind the 45deg angles with a diamond disc on my tool an cutter grinder. It seemed like a good idea at the time as I've always had trouble seating home made safety valves. I did it your way in the end and they work fine. I think using a 7/32" slot drill in one operation to cut the valve seats and the tapping size for the 1/4 x 40 threads contributed to the success.
 
Pete
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