api 2218

Answer 1: API 2510A cites 2 inches of reinforced or poured-in-place concrete as being satisfactory for steel supports of LPG vessels & piping. This is consistent with GAP 2.5.1 . One company uses the following “rules of thumb” for level of protection: 2 inches of dense concrete = 3 hr ASTM E119 rating or 2 hr UL 1709 protection. ................
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