GroundRules
46 CFR 154.528: Piping joints: Flange type.
Where this section sits in the code
- Title 46—Shipping
- CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY
- SUBCHAPTER O—CERTAIN BULK DANGEROUS CARGOES
- PART 154—SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES
- Subpart C—Design, Construction and Equipment
(a) A flange must be one of the following types:
(1) Welding neck.
(2) Slip-on.
(3) Socket weld.
(b) If the piping is designed for a temperature between −10 °C (14 °F) and −55 °C (−67 °F), the pipe flange may be a:
(1) Slip-on type, if the nominal pipe size is 100 mm (4 in.) or less;
(2) Socket weld, if the nominal pipe size is 50 mm (2 in.) or less; or
(3) Welding neck.
(c) If the piping is designed for a temperature lower than −55 °C (−67 °F), the pipe flange must be a welding neck type.
Collected 2026-08-27T02:26:22Z. Source file · JSON