1. Training Support Package

2. Introduction
Pressure 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.

3. Enabling Learning Objectives
6-1 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

4. Enabling Learning Objectives
6-3 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

5. DOT-105J400W

6. DOT-112J340W

7. Pressure Tank Car Protective housing Valve access ports
No other visible devices

8. SAFETY FEATURES 105 A X 105 S 105 J 112 A 112 S 112 T 112 J
Feature and Class
Double
Shelf
Couplers
Head
Shields
Spray–on
Thermal
Protection
Jacket
Insulation
105 A X
105 S
105 J
112 A
112 S
112 T
112 J
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 ).

9. DOT 105 A Insulated Jacket

10. DOT 105 J 500 W

11. Thermal Protection 105 J Jacketed insulated thermal protection Jacket
HazMat/WMD
Thermal Protection 105 J
Jacketed insulated thermal protection
Jacket
Insulation- 5”
Tank material

12. DOT 105 S 300 W

13. Thermal Protection 112 “J”
HazMat/WMD
Thermal Protection 112 “J”
Jacketed thermal protection
Jacket
Insulation- 1” to 2”
Tank material

14. DOT 112 J 340 W

15. DOT 112 T 400 W

16. Test Pressure
Range 100 to 600 psi

17. Capacity Range 4,000 to 45,000 gallons
49 CFR – (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

18. HazMat/WMD
Valves
Angle Valve
Pressure Relief Valve

19. Excess Flow Valve

20. Pressure Car Valves PRD-Pressure Relief Device
Normally set at 75% of test pressure

21. Midland Internal Safety Relief Valve

22. DOT 112 J 340 W 340 Tank Test Pressure
Safety Relief Valve or 82.5% of Tank Test Pressure

23. Slip Tube Gauging Device

24. Slip Tube Gauging Device

25. Slip Tube Gauging Device

26. Slip Tube Gauging Device Quick Release Cover
OPERATING INSTRUCTIONS
Step 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).

27. Magnetic Gauging Device
HazMat/WMD
Magnetic Gauging Device
Magnetic or closed type gauging devices

28. Gauging Device

29. Sample Valve Can be used to take a sample of product
Can be used to check pressure in tank car

30. HazMat/WMD
Thermometer Well
Using a thermometer to insert into the well to check the temperature of the lading

31. Pressure Car Valves

32. Pressure Car Valves

33. Pressure Car Valves

34. Pressure Tank Car Common Leaks
Leak Source
Corrective Action
Tools Required
Gauging device packing
Tighten packing gland nut
Large adjustable wrench
Pipe 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
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
Thermometer well
Tighten cap
Relief valve seals
Replace “O” rings or rubber washers
Advanced training

35. DOT 105 A 500 W

36. DOT 105 J 500 W

37. Chlorine Loading and Unloading Arrangement

38. New Chlorine Loading and Unloading Arrangement

39. External Relief Valve
Crosby
Midland

40. Chlorine Excess Flow Valve
Transquip USA A7837A Valve

41. Chlorine C Kit

42. 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
Check Pressure in car
Safety relief valve Gasket
Apply C Kit
Chlorine C kit
Manway cover gasket
Tighten stud nuts or apply
C Kit
Socket wrench ( 1 13/16”)

43. CO2 HOUSING

44. Regularly Vents CO2

45. DOT 113

46. DOT 113

47. LNG Tender

48. LNG Tender

49. LNG Tender

50. Conclusion
6-1 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

51. Conclusion
6-3 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