CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER O—CERTAIN BULK DANGEROUS CARGOES (parts 150 to 155) > PART 153—SHIPS CARRYING BULK LIQUID, LIQUEFIED GAS, OR COMPRESSED GAS HAZARDOUS MATERIALS > SUBPART B—Design and Equipment (§153.190 to §153.812) > 153.284—Characteristics of required quick closing valves.

153.284—Characteristics of required quick closing valves.

A remotely actuated quick closing shutoff valve required by § 153.530(n) must:
(a) Be a positive shutoff valve;
(b) Be of the fail-closed type that closes on loss of power;
(c) Be capable of local manual closing;
(d) Close from the time of actuation in 30 seconds or less; and
(e) Be equipped with a fusible element that melts at less than 104 °C (approx. 220 °F) and closes the valve.
[CGD 78-128, 47 FR 21208, May 17, 1982; 47 FR 27293, June 24, 1982]