[PSUBS-MAILIST] heads

[hank pronk via Personal_Submersibles]

Hi Sean,I just heard back from EE with a cost for two 36 inch id  3.5 inch heads, and they can not do 1% Diameter sphericity.  They can do ASME code witch is 1.25% or 5\8 inch.  I suppose that would mean machining the heads.  The heads could be machined to a very close tolerance then.  I would have to build a turret lathe then.Hank
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