Code of Federal Regulations · Section

§ 64.65 — Vacuum Relief Device

46 C.F.R. § 64.65

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(a) Each MPT that is designed for an external pressure of less than 7.5 psig must have a vacuum relief device.

(b) A vacuum relief device for an MPT must—

(1) Open at an external pressure of not less than 3 psig; and

(2) Have an opening with a cross-section of 0.44 square inch or more.

46 C.F.R. § 64.63 46 C.F.R. § 64.67

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