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Stay & Unstay

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safiamoiz

safiamoiz

Mechanical
Joined
Nov 14, 2009
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Kindly define "Stay" and "unstay" surfaces, parts as explained in ASME Section I. What is the difference between a stay head and a unstay head.
 
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Unstayed heads: see examples in fig PG-31.
Stayed constructions: see/read examples for firetube boilers PFT-22 to PFT-32
 
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