(a) Nonmetallic expansion joints certified in accordance with subpart 50.25 of this subchapter are acceptable for use in piping systems.
(b) Nonmetallic expansion joints must conform to the standards listed in Table 56.60-1(b) of this part. Nonmetallic expansion joints may be used within their specified pressure and temperature rating in vital and nonvital machinery sea connections inboard of the skin valve. These joints must not be used to correct for improper piping workmanship or misalignment. Joint movements must not exceed the limits set by the joint manufacturer.
[CGD 77-140, 54 FR 40607, Oct. 2, 1989]
Title 46 published on 2012-10-01
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