1. Regulations
  2. title 46
  3. chapter I-i3
  4. part 128
  5. subpart D
  6. § 128.450

View all text of Subpart D [§ 128.410 - § 128.450]

§ 128.450 - Liquid-mud systems.

(a) Liquid-mud piping systems may use resiliently seated valves of Category A to comply with §§ 56.20-15 and 56.50-60 of this chapter.

(b) Tanks for oil-based liquid mud must be fitted with tank vents equipped with flame screens. Vents must not discharge to the interior of the vessel.

AUTHORITY: 46 U.S.C. 3306; sec. 617, Pub. L. 111-281, 124 Stat. 2905; Department of Homeland Security Delegation No. 0170.1.

SOURCE: CGD 82-004 and CGD 86-074, 62 FR 49331, Sept. 19, 1997, unless otherwise noted.

CITE AS: 46 CFR 128.450