§154.802. Alternate pressure relief settings.

46 C.F.R. § 154.802

Cargo tanks with more than one relief valve setting must have one of the following arrangements:

(a)

Relief valves that—

(1)

Are set and sealed under § 154.801(c);

(2)

Have the capacity under § 154.806; and

(3)

Are interlocked so that cargo tank venting can occur at any time.

(b)

Relief valves that have spacer pieces or springs that—

(1)

Change the set pressure without pressure testing to verify the new setting; and

(2)

Can be installed without breaking the sealing wire required under § 154.801(c)(3).

Notes, amendments, and revision history

Authority: 46 U.S.C. 3703, 9101; Department of Homeland Security Delegation No. 0170.1.

Source: CGD 74-289, 44 FR 26009, May 3, 1979, unless otherwise noted.