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Highway Cargo TanksHighway Cargo Tanks

Presented byPresented by

Bill HandBill Hand

Training CoordinatorTraining Coordinator

Hazardous Materials Response TeamHazardous Materials Response Team

Harris County, TexasHarris County, Texas

Madison, WisconsinMadison, Wisconsin

August 2007August 2007

Highway Cargo Tank TrucksHighway Cargo Tank Trucks

The technician trainee, given examples of the following cargo tanks, shall identify each tank by type, and identify at least one material and its hazard class that is typically found in each tank:NFPA 472 (2002 Edition), 6.2.1.1(C)603-1.04a. Non-pressure liquid tanks (MC-306/DOT-406)603-1.04b. Low pressure chemical tanks (MC-307/DOT-407)603-1.04c. Corrosive liquid tanks (MC-312/DOT-412)603-1.04d. High-pressure tanks (MC-331)603-1.04e. Cryogenic liquid tanks (MC-338)603-1.04f. Tube trailers tanks

ObjectivesObjectives

MCMC--306/DOT306/DOT--406406

Atmospheric Pressure Cargo TankAtmospheric Pressure Cargo Tank•• Oval cross section nonOval cross section non--pressure (3 pressure (3 psipsi))

•• Single shell aluminum constructionSingle shell aluminum construction

•• 9000 Gallon capacity9000 Gallon capacity

•• Transports motor fuelsTransports motor fuels

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Bulk Containers Bulk Containers -- HighwayHighwayNon Pressure Cargo Tank MC 306 / DOT 406Non Pressure Cargo Tank MC 306 / DOT 406

Elliptical Cross-Section, Flat End

Vapor RecoveryVapor Recovery

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Wheel AssembliesWheel Assemblies

Two Main TypesTwo Main Types

Dual Wheeled AxlesDual Wheeled AxlesMost CommonMost Common

Single Wheeled AxlesSingle Wheeled AxlesAKA Super SinglesAKA Super Singles

Emergency ShutEmergency Shut--offoff

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MCMC--306 / DOT306 / DOT--406 Cargo Tank Construction406 Cargo Tank Construction

Integrated dome coverIntegrated dome cover

Overfill sensorOverfill sensor

Vapor recovery ventVapor recovery vent

Observation portObservation port

MCMC--306 / DOT306 / DOT--406 Cargo Tank Construction406 Cargo Tank Construction

Vapor recovery system Vapor recovery system

Vapor recovery pipingVapor recovery piping

OldOld

NewNew

MCMC--306 / DOT306 / DOT--406 Cargo Tank Construction406 Cargo Tank Construction

Vapor recovery system ventVapor recovery system vent

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MCMC--306 / DOT306 / DOT--406 Cargo Tank Construction406 Cargo Tank Construction

Overfill protectionOverfill protection

Truck SideTruck Side

Terminal SideTerminal Side

““Scully SystemScully System””

MCMC--306 / DOT306 / DOT--406 Cargo Tank Construction406 Cargo Tank Construction

Overfill protectionOverfill protection

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MCMC--306 / DOT306 / DOT--406 Cargo Tank Construction406 Cargo Tank Construction

Brake bar interlockBrake bar interlock

Load / Discharge ValvesLoad / Discharge Valves

Vapor recovery connectionVapor recovery connection

Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

Traffic ControlTraffic Control

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Highway Cargo Tanker Highway Cargo Tanker Emergency Response MC 306/DOT 406Emergency Response MC 306/DOT 406

Product identification?Product identification?

NaphthaNaphtha JPJP--44

GasolineGasoline

Highway Cargo TankerHighway Cargo TankerEmergency Response MC306/DOT 406Emergency Response MC306/DOT 406

Is the cooling water effective?Is the cooling water effective?

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Highway Cargo TankerHighway Cargo TankerEmergency Response MC 306/DOT 406Emergency Response MC 306/DOT 406

Thermal cooling begins Thermal cooling begins –– 3 ea. 1 3 ea. 1 ¾¾ water lineswater lines

Highway Cargo TankerHighway Cargo TankerEmergency Response MC 306/DOT 406Emergency Response MC 306/DOT 406

Fire calms down Fire calms down –– 3 ea. 1 3 ea. 1 ¾¾ water lineswater lines

Highway Cargo TankerHighway Cargo TankerEmergency Response MC 306/DOT 406Emergency Response MC 306/DOT 406

Foam application begins Foam application begins –– 2 ea. 1 2 ea. 1 ¾¾ @ 100 gpm per line @ 100 gpm per line

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Highway Cargo TankerHighway Cargo TankerEmergency Response MC 306/DOT 406Emergency Response MC 306/DOT 406

Three dimensional firesThree dimensional fires

Highway Cargo TankerHighway Cargo TankerEmergency Response MC 306/DOT 406Emergency Response MC 306/DOT 406

Highway Cargo TankerHighway Cargo TankerEmergency Response MC 306/DOT 406Emergency Response MC 306/DOT 406

Shear sectionShear section

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Highway Cargo TankerHighway Cargo TankerEmergency Response MC 306/DOT 406Emergency Response MC 306/DOT 406

Highway Cargo TankerHighway Cargo TankerEmergency Response MC 306/DOT 406Emergency Response MC 306/DOT 406

Highway Cargo TankerHighway Cargo TankerEmergency Response MC 306/DOT 406Emergency Response MC 306/DOT 406

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Highway Cargo TankerHighway Cargo TankerEmergency Response MC 306/DOT 406Emergency Response MC 306/DOT 406

No wind?No wind?………….make your own.make your own

Highway Cargo TankerHighway Cargo TankerEmergency Response MC 306/DOT 406Emergency Response MC 306/DOT 406

Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

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Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

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Highway Cargo TankerHighway Cargo TankerEmergency Response MC 306/DOT 406Emergency Response MC 306/DOT 406

Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

Grounding & BondingGrounding & Bonding

•• Clean connectionsClean connections

•• Cables intactCables intact

•• Last connection in nonLast connection in non--flammable atmosphere flammable atmosphere

Highway Cargo TankerHighway Cargo TankerEmergency Response MC 306/DOT 406Emergency Response MC 306/DOT 406

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MCMC--307/DOT307/DOT--407407Low Pressure Cargo TankLow Pressure Cargo Tank•• Circular crossCircular cross--section (up to 40 section (up to 40 psipsi.).)

•• Double shell w/insulation must commonDouble shell w/insulation must common

•• One or two compartmentsOne or two compartments

•• 6000 to 7000 gal capacity6000 to 7000 gal capacity

•• Transports flammable and combustible liquids Transports flammable and combustible liquids and poisonsand poisons

Bulk Containers Bulk Containers -- HighwayHighway

Low Pressure Cargo Tank MC 307 / DOT 407Low Pressure Cargo Tank MC 307 / DOT 407

Stiffening RingsStiffening Rings

InsulatedInsulated NonNon--insulatedinsulated

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UnUn--insulatedinsulated

InsulatedInsulated

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MCMC--307/407307/407

Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

Highway Cargo TankerHighway Cargo TankerEmergency Response MC 307/DOT 407Emergency Response MC 307/DOT 407

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Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

MCMC--312 / DOT312 / DOT--412412Corrosive Liquid Cargo TanksCorrosive Liquid Cargo Tanks•• Circular cross section, smaller diameterCircular cross section, smaller diameter

•• Overturn protection at dome and valvesOverturn protection at dome and valves

•• Capacity 5000 to 6000 gallonsCapacity 5000 to 6000 gallons

•• Transport corrosives and other high density Transport corrosives and other high density liquidsliquids

Bulk Containers Bulk Containers -- HighwayHighwayCorrosive Liquid Cargo Tank MC 312 / DOT 412Corrosive Liquid Cargo Tank MC 312 / DOT 412

Stiffening RingsStiffening Rings

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MC 312/ DOT 412MC 312/ DOT 412

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Vacuum Trucks MC 312/DOT 412Vacuum Trucks MC 312/DOT 412

Highway Cargo TankerHighway Cargo TankerEmergency Response MC 312/DOT 412Emergency Response MC 312/DOT 412

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Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

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Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

Bulk Containers Bulk Containers -- HighwayHighway

Pressure Cargo Tank MC 331Pressure Cargo Tank MC 331

Circular, Rounded EndCircular, Rounded End

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FRONT

REAR

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Hydraulic pump on NH3 Cargo Tank

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Hydrogen fluoride, anhydrousHydrogen fluoride, anhydrous

MC 331MC 331

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Bulk Containers Bulk Containers -- HighwayHighway

Compressed Gas Cargo Tank (China)Compressed Gas Cargo Tank (China)

MEMPHISMEMPHIS

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Highway Cargo TankerHighway Cargo TankerEmergency Response MC 331Emergency Response MC 331

Highway Cargo TankerHighway Cargo TankerEmergency Response MC 331Emergency Response MC 331

Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

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Highway Cargo TankerHighway Cargo TankerEmergency Response MC 3331Emergency Response MC 3331

Highway Cargo TankerHighway Cargo TankerEmergency Response MC 331Emergency Response MC 331

Highway Cargo TankerHighway Cargo TankerEmergency Response MC 331Emergency Response MC 331

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Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

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Highway Cargo TankerHighway Cargo TankerEmergency Response MC 331Emergency Response MC 331

IDLH 500 ppmIDLH 500 ppm

Houston Post BuildingsHouston Post Buildings

6,500 ppm for 2 Minutes6,500 ppm for 2 Minutes

Anhydrous Anhydrous Ammonia MC 331Ammonia MC 331

11 May 197611 May 1976

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Highway Cargo TankerHighway Cargo TankerEmergency Response MC 331Emergency Response MC 331

MCMC--338338Cryogenic Liquid Cargo TankCryogenic Liquid Cargo Tank

•• Insulated Insulated ““Thermos BottleThermos Bottle”” designdesign

•• Double shell w/relief protectionDouble shell w/relief protection

••Vapors discharge from road relief valveVapors discharge from road relief valve

•• Transport LOX, Liquid nitrogen, Liquid Transport LOX, Liquid nitrogen, Liquid argon, Liquid hydrogen, LNGargon, Liquid hydrogen, LNG

Bulk Containers Bulk Containers -- HighwayHighway

Cryogenic Liquid Cargo Tank MC 338 / Non Spec.Cryogenic Liquid Cargo Tank MC 338 / Non Spec.

Tank Within a Tank

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Bulk Containers Bulk Containers -- HighwayHighway

Cryogenic Liquid Cargo Tank MC 338 / Non Spec.Cryogenic Liquid Cargo Tank MC 338 / Non Spec.

Circular, Rounded EndCircular, Rounded End

MC 338MC 338

MC 338MC 338

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PRESSURE RELIEF VALVE

FRANGIBLE DISK

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Highway Cargo TankerHighway Cargo TankerEmergency Response CGA 341Emergency Response CGA 341

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Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

Highway Cargo TankerHighway Cargo TankerEmergency Response CGA 341Emergency Response CGA 341

Bulk Containers Bulk Containers -- HighwayHighwayTube TrailersTube Trailers

Permanently Permanently Mounted CylindersMounted Cylinders

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Bulk Containers Bulk Containers -- HighwayHighwayTube TrailersTube Trailers

Examples include Hydrogen, Helium and Argon

Spec Gas FireSpec Gas Fire

Bulk Containers Bulk Containers -- HighwayHighwayDry Bulk Commodity Carriers (NonDry Bulk Commodity Carriers (Non--Specification)Specification)

V-Shaped Unloading Compartments

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Bulk Containers Bulk Containers -- HighwayHighwayMolten Sulfur Cargo Tank (NonMolten Sulfur Cargo Tank (Non--Specification)Specification)

Breathing AirCylinder

Highway Cargo TankerHighway Cargo TankerEmergency Response Non Spec.Emergency Response Non Spec.

Highway Cargo TankerHighway Cargo TankerEmergency Response NonEmergency Response Non--SpecSpec

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Highway Cargo TankerHighway Cargo TankerEmergency Response NonEmergency Response Non--SpecSpec

Highway Cargo TankerHighway Cargo TankerEmergency ResponseEmergency Response

Highway Cargo TankerHighway Cargo TankerEmergency Response NonEmergency Response Non--SpecSpec

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Highway Cargo TankerHighway Cargo TankerEmergency Response NonEmergency Response Non--SpecSpec

Bulk Containers Bulk Containers -- HighwayHighway

Asphalt Trailer (NonAsphalt Trailer (Non--Specification)Specification)

Bulk Containers Bulk Containers -- HighwayHighway

Asphalt Trailer (NonAsphalt Trailer (Non--Specification)Specification)

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Bulk Containers Bulk Containers -- HighwayHighwayAsphalt Trailer (NonAsphalt Trailer (Non--Specification)Specification)

Bulk Containers Bulk Containers -- HighwayHighwayAsphalt Trailer (NonAsphalt Trailer (Non--Specification)Specification)

Thanks for your Interest!Thanks for your Interest!Any Questions???Any Questions???