The new cylinder design addressed and solved the customer’s design issues, including:

• Elimination of seam between top and bottom shell halves, and the related rust problems.
• The pressed-in bottom closure and its brazed joint provide a double thickness of material at the bottom edge, which is much more dent-resistant than the old foot stand design.
• Elimination of the foot stand and the cavity within it, which caused water entrapment and rust problems.

The heavier-walled shell allows for higher test and burst pressures, and permit certification by U.L.

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