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Pressure Relief Valves That May Be Found on Pressure Tank Cars “REGO 8890-SERIES” Courtesy of Transquip USA. “CROSBY JQ” CHLORINE COMBINATION PRV Courtesy of Salco Marketing, LLC. 82
Fittings Arrangement for Carbon Dioxide and Nitrous Oxide Tank Cars Rupture Disc Assembly Pressure Relief Valve Vapor Valve Regulator Valves Fixed-length Liquid Level Outage Tubes Thermometer Well Liquid Valve Tank cars transporting Carbon Dioxide and Nitrous Oxide will be stenciled “REGULATING VALVES VENTING NORMAL” on each side of the car. The venting of vapor from the regulator valves is a normal function to reduce internal pressure through auto-refrigeration. DO NOT attempt to plug the discharge pipes of the pressure relief devices. 83
Page 1 and 2:
Third Edition
Page 3 and 4:
FIELD GUIDE TO TANK CARS Compiled b
Page 5 and 6:
Dedication Field Guide to Tank Cars
Page 7 and 8:
Table of Contents Introduction ....
Page 9 and 10:
DOT/TC-111A100W5 (Rubber Lined) Tan
Page 11 and 12:
DOT/TC-112J340W for Liquefied Petro
Page 13 and 14:
INTRODUCTION Field Guide to Tank Ca
Page 15 and 16:
The Field Guide to Tank Cars is div
Page 17 and 18:
SECTION 1: TANK CAR CLASSIFICATION
Page 19 and 20:
2. Class number: The term “class
Page 21 and 22:
3. Delimiter Letter: On pressure an
Page 23 and 24:
Nonpressure Tank Car Designator Tab
Page 25 and 26:
SECTION 2: TANK CAR SAFETY SYSTEMS
Page 27 and 28:
the bolts attaching the valve exten
Page 29 and 30:
Combination PRDs incorporate a nonr
Page 31 and 32:
Tanks built prior to October 1, 199
Page 33 and 34:
SECTION 3: TANK CAR STENCILING AND
Page 35 and 36:
Identification Plate Car builder’
Page 37 and 38:
The qualification/test dates and th
Page 39 and 40:
Cars and AAR Pamphlet 34 and identi
Page 41 and 42:
SECTION 4: NONPRESSURE TANK CARS No
Page 43 and 44: Loading and unloading fittings are
Page 45 and 46: Depending upon their projection fro
Page 47 and 48: DOT/TC-111A100W1 Tank Car for Alcoh
Page 49 and 50: DOT/TC-111A100W2 Tank Car for Sulfu
Page 51 and 52: DOT/TC-111A100W5 (Rubber Lined) Tan
Page 53 and 54: Top Operated, Bottom Unloading Valv
Page 55 and 56: Internal Ball Valve 43
Page 57 and 58: Typical Bottom Washout Arrangements
Page 59 and 60: Safety Vent Note: Safety vents are
Page 61 and 62: 10L 2T Serpentine Manifolded Half-O
Page 63 and 64: Sodium Hydroxide Tank Car with Top
Page 65 and 66: Class DOT/TC-111A “CPC 1232” Ta
Page 67 and 68: Class DOT/TC-117 Tank Car Features
Page 69 and 70: Class DOT/TC-117 Manway and Top Fit
Page 71 and 72: DOT/TC-117R100W Tank Car for Flamma
Page 73 and 74: Examples of Nonpressure Tank Car Se
Page 75 and 76: Vacuum Relief Valves Courtesy of Mi
Page 77 and 78: “Constant Force Spring” Pressur
Page 79 and 80: Lined Fittings Manway Plates for Hy
Page 81 and 82: SECTION 5: PRESSURE TANK CARS Press
Page 83 and 84: The loading/unloading fittings and
Page 85 and 86: In lieu of a magnetic gauging devic
Page 87 and 88: Chlorine and Sulfur Dioxide: Tw
Page 89 and 90: Loading and Unloading Arrangement f
Page 91 and 92: Typical Chlorine Tank Car Fittings
Page 93: Magnetic Ball Gauging Device (May a
Page 97 and 98: developed that is designed to preve
Page 99 and 100: Enhanced Fittings Arrangement for C
Page 101 and 102: Enhanced Chlorine Fittings Rupture
Page 103 and 104: SECTION 6: CRYOGENIC LIQUID TANK CA
Page 105 and 106: The loading/unloading valves and ot
Page 107 and 108: Typical Cryogenic Liquid Tank Car F
Page 109 and 110: SECTION 7: GUIDELINES FOR INITIAL E
Page 111 and 112: source. Turn off the vehicle’s ig
Page 113 and 114: Tank Car Damage Assessment Tank car
Page 115 and 116: Situations where flooding with wate
Page 117 and 118: SECTION 8: GLOSSARY OF RAILROAD AND
Page 119 and 120: CHEMTREC ® — acronym for the Che
Page 121 and 122: Eduction Pipe — the pipe that run
Page 123 and 124: Light Weight/LT WT — empty weight
Page 125 and 126: pressure relief valves, regulating
Page 127 and 128: SETIQ — acronym for the Mexican E
Page 129 and 130: Thermal Protection — a material o
Page 131 and 132: ANNEX A: AAR, U.S. DOT, AND TRANSPO
Page 133 and 134: Tanks constructed of normalized AST
Page 135 and 136: Tank head puncture resistance: Full
Page 137 and 138: The “FAST Act” revised the May
Page 139 and 140: (3) The highest point on the closur
Page 141 and 142: TRANSPORT CANADA REGULATIONS FOR TA
Page 143 and 144: BACK COVER (INSIDE) 131
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