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CARGO TANK MOTOR VEHICLES

CARGO TANK MOTOR VEHICLES. DOT Definition. A tank intended primarily for the carriage of liquids or gases A tank that is permanently attached to or forms any part of any motor vehicle Is loaded of unloaded without being removed from a motor vehicle

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CARGO TANK MOTOR VEHICLES

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  1. CARGO TANK MOTOR VEHICLES

  2. DOT Definition • A tank intended primarily for the carriage of liquids or gases • A tank that is permanently attached to or forms any part of any motor vehicle • Is loaded of unloaded without being removed from a motor vehicle • Is not fabricated under a specification for cylinders, portable tanks, tank cars, or multiunit tank car Cargo Tanks

  3. MC vs. DOT • MC 306 Certified before August 31, 1995 and will have spec. plate • DOT 406 Certified on August 31, 1995 or later will have certification plate Cargo Tanks

  4. Specification Plate and Certification Plates Helps with the identification of tank type by providing specific information. Spec. Plates located on passenger side front of tank. Certification Plates located on drivers side front of tank. Cargo Tanks

  5. VEHICLE MFG. DALLAS TANK TRUCK CO. BBH 04677 DATE MFR. 1/97 MFG. S/N 306 AL 1/97 DOT MC CERT. DESIGN PRES. 0 PSIG AT 180 oF MAX TEST PRES. 5 PSIG DATE 3 HEAD MAT’L 5454-H32 SHELL MAT’L 5454-0 CAP. BY COMPT. F/R U.S. GAL. 3400-2000-1100 2700 TOTAL 9200 MAX. LOAD 64,000 LBS AT 7.5 LBS./GAL. MAX LMT. LD 1.5 PSIG UNLD 0.5 PSIG GPM GPM Cargo Tanks

  6. Multipurpose Plates • Is in addition to spec. or certification plate • Is color coded along with fittings • MC-306/DOT-406=Red • MC-307/DOT407=Green • MC-312/DOT-412=Yellow • Non-specification cargo tank=Blue • Identifies the specification under which the cargo tank is operated • Common multipurpose configurations are: • MC-306/DOT-406 / MC-307/DOT-407 • MC-307/DOT-407/MC-312/DOT-412 (Nalco uses this) Cargo Tanks

  7. MC-306/DOT-406 • Most oval cross section • Non pressurized - less than 3 psi (406 -5 psig) • Usually single shell aluminum construction • Some older tanks may be constructed of steel Cargo Tanks

  8. MC-306/DOT-406 Generally 9,000 gallons Maximum capacity Products And Hazard Class Gasoline Class 3 Diesel Class 3 Cargo Tanks

  9. Cargo Tanks

  10. Cargo Tanks

  11. Emergency shut-off • Air • Manual • Fusible links (fail at a maximum of 250oF) Cargo Tanks

  12. MC-307/DOT-407 • Circular cross section • Low pressure (up to 40 psi) • Double shell construction with insulation is most common • Some insulated tanks may not appear circular Cargo Tanks

  13. MC-307/DOT-407 • Usually one to two compartments • Spec. plate identifies number of compartment • Overturn protection • Generally 6,000 to 7,000 gallons maximum capacity Cargo Tanks

  14. MC-307/DOT-407 Products And Hazard Class • Flammable & Combustible Liquids 3 • Mild Corrosives 8 • Poisons 6 Cargo Tanks

  15. MC-307/DOT-407 Horseshoe shape Single Work Platform 40 psig Vapor Pressure Single Outlet Piping NFPA Objective 4-2.3.2

  16. MC-307/DOT-407 Cargo Tanks

  17. MC-312/DOT-412 • Circular cross section • Smaller diameter than DOT 407 • External reinforcement ribs • May be found in double shell construction • Usually single compartment Cargo Tanks

  18. MC-312/DOT-412 • Overturn protection and splash protection at dome cover/valve location • Generally 5,000 to 6,000 gallons capacity Cargo Tanks

  19. MC-312/DOT-412 Products and Hazard Class Corrosive and High Density Liquids • Sulfuric Acid (15.34 lb.) Class 8 • Nitric Acid (12.54 lb.) Class 8 • Sodium Hydroxide (17.76 lb.) Class 8 • Poison Class 6 Cargo Tanks

  20. MC 312(DOT 412) Rounded Ends Exterior Stiffner Rings Small Diameter“Cigar Shape” 35 - 50 psig Working Pressure NFPA Objective 4-2.3.2

  21. Cargo Tanks

  22. Cargo Tanks

  23. MC 331High Pressure Gas • Circular cross section • Rounded heads • Design pressure 100 to 500 psi • Single shell, non-insulated tank • Upper 2/3 painted white or highly reflective color Cargo Tanks

  24. MC 331High Pressure Gas • Capacity • Bobtail • 2,500 gallons • Cargo Tank • 11,500 gallons Cargo Tanks

  25. MC 331High Pressure Gas Products And Hazard Class • LPG Class 2 • Anhydrous ammonia Class 2 • Chlorine 2 - 5.1 Cargo Tanks

  26. MC 331 Bolted Manway Large Hemisphere Ends Up to 11,500 gal Cage Around Piping 100 to 500 psig NFPA Objective 4-2.3.2

  27. Cargo Tanks

  28. Cargo Tanks

  29. Cargo Tanks

  30. Cargo Tanks

  31. MC 338Cryogenic Liquid • Well insulated “thermos bottle design with flat tank ends • Double shell tank with relief protection • Often have vapors discharging from relief valve Cargo Tanks

  32. MC 338Cryogenic Liquid Product And Hazard Class • Oxygen 5.1 (2) • Hydrogen 2 • Helium 2 • Nitrogen 2 • Cryogenics exist as a liquid at - 130oF and below Cargo Tanks

  33. MC 338 Ends Normally Flat 5000 to 14,000 gal Loading (Sometimes Located Here) Loading/Unloading Station at Rear 23.5 to 500 psig design pressure

  34. Cargo Tanks

  35. Tube Trailer • 2 to 20 Cylinders • Cylinders 9” to 48” • Pressure 3,000 - 5,000 psi • Maximum Capacity 180,000 cu ft. • Max. Capacity in Canada 200,000 cu ft. Cargo Tanks

  36. Tube Trailer Product And Hazard Class • Helium Class 2 • Hydrogen Class 2 • Oxygen Class 2 Cargo Tanks

  37. Cargo Tanks

  38. Dry Bulk Carriers • Capacity up to 1,500 cubic feet • Carry Very Heavy Loads; centrifugal • force cause of many rollovers • Uses air pressure for product transfer • Static charges are a common hazard Cargo Tanks

  39. Dry Bulk Carriers Products And Hazard Class • Ammonium Nitrate Fertilizer Class 5.1 • Cement Class 9 • Dry Caustic Soda Class 8 Cargo Tanks

  40. Dry Bulk Carriers Compressor Unit Pneumatically Unloaded Large Sloping “V” or “W” Shaped Bottom Up to 1500 cu. ft.

  41. “V” or “W” Shape Cargo Tanks

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