Current through September 30, 2024
Section 154.802 - Alternate pressure relief settingsCargo 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) .