49 C.F.R. §§ 179.401-1

Current through October 31, 2024
Section 179.401-1 - Individual specification requirements

In addition to § 179.400 , the individual specification requirements for the inner tank and its appurtenances are as follows:

DOT specification 113A60W 113C120W
Design service temperature, °F-423-260.
Material§ 179.400-5 § 179.400-5 .
Impact test (weld and plate material)§ 179.400-5(c) § 179.400-5(c) .
Impact test values§ 179.400-5(d) § 179.400-5(d) .
Standard heat transfer rate.
(Btu per day per lb. of water capacity, max.) (see § 179.400-4 )0.0970.4121.
Bursting pressure, min. psig240300.
Minimum plate thickness shell, inches (see § 179.400-7(a) )3/163/16.
Minimum head thickness, inches (see § 179.400-8 (a), (b), and (c) )3/163/16.
Test pressure, psig (see § 179.400-16 )60120.
Safety vent bursting pressure, max. psig60120.
Pressure relief valve start-to-discharge pressure, psig (±3 psi)3075.
Pressure relief valve vapor tight pressure, min. psig2460.
Pressure relief valve flow rating pressure, max. psig4085.
Alternate pressure relief valve start to-discharge pressure, psig (±3 psi)90.
Alternate pressure relief valve vapor tight pressure, min. psig72.
Alternate pressure relief valve flow rating pressure, max. psig100.
Pressure control valve Start-to-vent, max. psig (see § 179.400-20(c)(4) )17Not required.
Relief device discharge restrictions§ 179.400-20 179.400-20.
Transfer line insulation§ 179.400-17 Not required.

49 C.F.R. §§179.401-1

Amdt. 179-32, 48 FR 27708, June 16, 1983, as amended at 49 FR 24318, June 12, 1984; 65 FR 58632 , Sept. 29, 2000; 66 FR 45390 , Aug. 28, 2001