1. Regulations
  2. title 46
  3. chapter I-i4
  4. part 153
  5. subpart B
  6. subjgrp 33
  7. § 153.368

View all text of Subjgrp 33 [§ 153.350 - § 153.372]

§ 153.368 - Pressure-vacuum valves.

(a) The pressure side of a required pressure-vacuum relief valve must begin to open only at a pressure exceeding 3.5 kPa gauge (approx. 0.5 psig).

(b) A pressure-vacuum relief valve must meet the requirements of Subpart 162.017 of this chapter.

AUTHORITY: 46 U.S.C. 3703; Department of Homeland Security Delegation No. 0170.1. Section 153.40 issued under 49 U.S.C. 5103. Sections 153.470 through 153.491, 153.1100 through 153.1132, and 153.1600 through 153.1608 also issued under 33 U.S.C. 1903 (b).

SOURCE: CGD 73-96, 42 FR 49027, Sept. 26, 1977, unless otherwise noted.

CITE AS: 46 CFR 153.368