46 C.F.R. § 154.546 Excess flow valve: Closing flow.
Title 46 - Shipping
(a) The rated closing flow of vapor or liquid cargo for an excess flow valve must be specially approved by the Commandant (G-MSO). (b) An excess flow valve allowed under §154.532(b) must close automatically at the rated closing flow. [CGD 74–289, 44 FR 26009, May 3, 1979, as amended by CGD 82–063b, 48 FR 4782, Feb. 3, 1983]
Title 46: Shipping
PART 154—SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES
Subpart C—Design, Construction and Equipment
Cargo and Process Piping Systems
§ 154.546 Excess flow valve: Closing flow.
