Tank Car Specialist Training Support Package November 2014 Module 6: Pressure Tank Cars Training...
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Transcript of Tank Car Specialist Training Support Package November 2014 Module 6: Pressure Tank Cars Training...
![Page 1: Tank Car Specialist Training Support Package November 2014 Module 6: Pressure Tank Cars Training Support Package.](https://reader036.fdocuments.in/reader036/viewer/2022062519/56649c8a5503460f9494441f/html5/thumbnails/1.jpg)
Tank Car SpecialistTraining Support Package
November 2014
Module 6: Pressure Tank Cars
Training Support Package
![Page 2: Tank Car Specialist Training Support Package November 2014 Module 6: Pressure Tank Cars Training Support Package.](https://reader036.fdocuments.in/reader036/viewer/2022062519/56649c8a5503460f9494441f/html5/thumbnails/2.jpg)
Tank Car Specialist
IntroductionPressure tank cars are those with a tank test pressure between 100 and 600 psi that are used for transportation of liquefied compressed gases and liquid hazardous material (HazMat).
Upper tank fittings are enclosed in a protective housing. Pressure tank cars do not normally have bottom fittings.
![Page 3: Tank Car Specialist Training Support Package November 2014 Module 6: Pressure Tank Cars Training Support Package.](https://reader036.fdocuments.in/reader036/viewer/2022062519/56649c8a5503460f9494441f/html5/thumbnails/3.jpg)
Tank Car Specialist
Enabling Learning Objectives6-1 Identify the components that are normally found on a
pressure tank car for loading and unloading, determining capacity, pressure relief, and security measures.
6-2 Identify the location, function, and arrangement of the following as commonly found on a pressure tank car:
• Liquid Valves• Vapor Valves• PRD-Pressure Relief Devices• Sample Ports• Gauging Devices• Thermometer Wells• Vacuum Relief Devices
![Page 4: Tank Car Specialist Training Support Package November 2014 Module 6: Pressure Tank Cars Training Support Package.](https://reader036.fdocuments.in/reader036/viewer/2022062519/56649c8a5503460f9494441f/html5/thumbnails/4.jpg)
Tank Car Specialist
Enabling Learning Objectives6-3 Demonstrate the proper use of the following devices in
controlling a release, determining the conditions within the tank car, and determining the capacity of a pressure tank car while participating in a realistic scenario-based derailment:
• Liquid Valves• Vapor Valves• PRD-Pressure Relief Devices• Sample Ports• Gauging Devices• Thermometer Wells• Vacuum Relief Devices
![Page 5: Tank Car Specialist Training Support Package November 2014 Module 6: Pressure Tank Cars Training Support Package.](https://reader036.fdocuments.in/reader036/viewer/2022062519/56649c8a5503460f9494441f/html5/thumbnails/5.jpg)
Tank Car Specialist
DOT-105J400W
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Tank Car Specialist
DOT-112J340W
![Page 7: Tank Car Specialist Training Support Package November 2014 Module 6: Pressure Tank Cars Training Support Package.](https://reader036.fdocuments.in/reader036/viewer/2022062519/56649c8a5503460f9494441f/html5/thumbnails/7.jpg)
Tank Car Specialist
Pressure Tank Car
• Protective housing• Valve access ports• No other visible devices
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Tank Car Specialist
SAFETY FEATURESFeature and Class
DoubleShelf
Couplers
HeadShields
Spray–onThermal
Protection
JacketThermal
Protection
JacketInsulation
105 A X X
105 S X X X
105 J X X X X
112 A X
112 S X X
112 T X X X
112 J X X X
Tank cars containing Flammable compressed gases must be either a T or J specification.
Also, all openings into the tank must be equipped with excess flow check valve (excluding the pressure relief device and thermometer well ).
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Tank Car Specialist
DOT 105 A Insulated Jacket
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Tank Car Specialist
DOT 105 J 500 W
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Tank Car Specialist
Thermal Protection 105 J
11
• Jacketed insulated thermal protection
Jacket
Insulation- 5”
Tank material
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Tank Car Specialist
DOT 105 S 300 W
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Tank Car Specialist
Thermal Protection 112 “J”
13
Jacketed thermal protection
Jacket Insulation- 1” to 2”Tank material
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Tank Car Specialist
DOT 112 J 340 W
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Tank Car Specialist
DOT 112 T 400 W
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Tank Car Specialist
Test Pressure
• Range 100 to 600 psi
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Tank Car Specialist
Capacity Range4,000 to 45,000 gallons• 49 CFR 179.13 – (built after 11/30/1970)
Cannot exceed 34,500 gal or gross rail weight 263,000 lb
AAR Standards - between 263,000 and 286,000 lbs but no increase in commodity
• Built prior to 7/01/1974 and 40 yrs service – eligible for 50 yrs with AAR compliance
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Tank Car Specialist
Valves
18
Angle Valve Pressure Relief Valve
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Tank Car Specialist
Excess Flow Valve
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Tank Car Specialist
Pressure Car ValvesPressure Relief Device
• PRD-Pressure Relief Device
• Normally set at 75% of test pressure
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Tank Car Specialist
Midland Internal Safety Relief Valve
![Page 22: Tank Car Specialist Training Support Package November 2014 Module 6: Pressure Tank Cars Training Support Package.](https://reader036.fdocuments.in/reader036/viewer/2022062519/56649c8a5503460f9494441f/html5/thumbnails/22.jpg)
Tank Car Specialist
DOT 112 J 340 W
•340 Tank Test Pressure
•Safety Relief Valve 280.5 or 82.5% of Tank Test Pressure
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Tank Car Specialist
Slip Tube Gauging Device
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Tank Car Specialist
Slip Tube Gauging Device
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Tank Car Specialist
Slip Tube Gauging Device
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Tank Car Specialist
Slip Tube Gauging DeviceQuick Release Cover
OPERATING INSTRUCTIONSStep 1 Grip handles and remove housing.
Step 2 Move packing nut lever in a counterclockwise direction.
Step 3 Press rod latch and pull gauge rod upward until it is above the liquid.
Step 4 Open the control valve counterclockwise, keep turning until vapor flows from valve orifice.
Step 5 Push gauge rod down slowly until flow changes to liquid.
Step 6 Fish gauge by moving it upward and downward several times over short distances above and below the liquid level until liquid level is determined by the vapor-liquid flow.
Step 7 Close the valve clockwise. Set only finger tight. Do not use wrench.
Step 8 Read graduations at top of pointer.
Step 9 Press rod latch and push gauge rod completely down.
Step 10 Tighten packing nut lever clockwise (reverse of Step 2).
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Tank Car Specialist
Magnetic Gauging Device
27
• Magnetic or closed type gauging devices
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Tank Car Specialist
Gauging Device
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Tank Car Specialist
Sample Valve
• Can be used to take a sample of product
• Can be used to check pressure in tank car
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Tank Car Specialist
Thermometer Well
30
• Using a thermometer to insert into the well to check the temperature of the lading
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Tank Car Specialist
Pressure Car Valves
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Tank Car Specialist
Pressure Car Valves
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Tank Car Specialist
Pressure Car Valves
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Tank Car Specialist
Pressure Tank Car Common Leaks
Leak Source Corrective Action Tools Required
Gauging device packing Tighten packing gland nut Large adjustable wrenchPipe wrench
Gauging device angle valve
Close angle valve and insert outlet plug
Small adjustable wrench
Liquid/vapor angle valve Close valve and insert outlet plug
Large adjustable wrenchPipe wrench
Angle valve packing Close valve or tighten pack gland nuts
Small adjustable wrench,Allen wrench
Angle valve gasket Tighten stud nuts Large socket wrench
Sample valve seat Close valve and insert outlet plug
Small adjustable wrench
Thermometer well Tighten cap Large adjustable wrench
Relief valve seals Replace “O” rings or rubber washers
Advanced training
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Tank Car Specialist
DOT 105 A 500 W
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Tank Car Specialist
DOT 105 J 500 W
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Tank Car Specialist
Chlorine Loading and Unloading Arrangement
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Tank Car Specialist
New Chlorine Loading and Unloading Arrangement
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Tank Car Specialist
External Relief Valve
Crosby Midland
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Tank Car Specialist
Chlorine Excess Flow Valve
Transquip USA A7837A Valve
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Tank Car Specialist
Chlorine C Kit
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Tank Car Specialist
Chlorine Common Leaks
Leak Source Corrective Action Tools Required
Angle valve packing Close valve or tighten packing gland nuts or apply C Kit
Small adjustable wrench(11/16”) Chlorine C Kit
Angle valve seat Apply valve outlet plugs or apply C Kit
Large adjustable wrench (31/32”) Chlorine C Kit
Angle valve gasket Tighten stud nuts or apply C Kit. Apply C Kit
Crowsfoot wrench ( 1 ¼”)Chlorine C Kit
Safety relief valve Tighten stud nuts or apply C Kit
Chlorine C KitCheck Pressure in car
Safety relief valve Gasket Apply C Kit Crowsfoot wrench ( 1 ¼”)Chlorine C kit
Manway cover gasket Tighten stud nuts or apply C Kit
Socket wrench ( 1 13/16”)
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Tank Car Specialist
CO2 HOUSING
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Tank Car Specialist
Regularly Vents CO2
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Tank Car Specialist
DOT 113
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Tank Car Specialist
DOT 113
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Tank Car Specialist
LNG Tender
![Page 48: Tank Car Specialist Training Support Package November 2014 Module 6: Pressure Tank Cars Training Support Package.](https://reader036.fdocuments.in/reader036/viewer/2022062519/56649c8a5503460f9494441f/html5/thumbnails/48.jpg)
Tank Car Specialist
LNG Tender
![Page 49: Tank Car Specialist Training Support Package November 2014 Module 6: Pressure Tank Cars Training Support Package.](https://reader036.fdocuments.in/reader036/viewer/2022062519/56649c8a5503460f9494441f/html5/thumbnails/49.jpg)
Tank Car Specialist
LNG Tender
![Page 50: Tank Car Specialist Training Support Package November 2014 Module 6: Pressure Tank Cars Training Support Package.](https://reader036.fdocuments.in/reader036/viewer/2022062519/56649c8a5503460f9494441f/html5/thumbnails/50.jpg)
Tank Car Specialist
Conclusion6-1 Identify the components that are normally found on a
pressure tank car for loading and unloading, determining capacity, pressure relief, and security measures.
6-2 Identify the location, function, and arrangement of the following as commonly found on a pressure tank car:
• Liquid Valves• Vapor Valves• PRD-Pressure Relief Devices• Sample Ports• Gauging Devices• Thermometer Wells• Vacuum Relief Devices
![Page 51: Tank Car Specialist Training Support Package November 2014 Module 6: Pressure Tank Cars Training Support Package.](https://reader036.fdocuments.in/reader036/viewer/2022062519/56649c8a5503460f9494441f/html5/thumbnails/51.jpg)
Tank Car Specialist
Conclusion6-3 Demonstrate the proper use of the following devices in
controlling a release, determining the conditions within the tank car, and determining the capacity of a pressure tank car while participating in a realistic scenario-based derailment:
• Liquid Valves• Vapor Valves• PRD-Pressure Relief Devices• Sample Ports• Gauging Devices• Thermometer Wells• Vacuum Relief Devices