LPG (Liquefied Petroleum Gas) Loading Arms

LPG (Liquefied Petroleum Gas) Loading ArmsOPW Engineered Systems specializes in the engineering, designing and manufacturing of Loading Arms for the safe and efficient loading and unloading of LPG.

  • Minimize risk of injury
  • Increase efficiency
  • Multiple designs available to meet your application

Loading Arm Solutions

The loading arm solutions typically applied in this application*:

  • TPC_loading-arms1_tn (1)Un/supported Boom Loading Arm
    • Long reach capability
    • Easy to operate/maneuver
    • Can be safely stored to provide for safe clearance of vehicles
    • Compensates for vehicle misplacement (mis-spotting)
  • A-Frame Arm
    • Compact storage envelope
    • Stores in near vertical position
    • Capable of long reaches
  • ‘Bull Horn’ Style Loading Arm
    • Provides dual product connections using a single loading arm

*Please note that all applications are different and may be subject to design changes as warranted.


  • HT3TL LPG Coupling
    • Hiltap 3TL Series
    • Replace conventional hammer unions
    • Repeatedly reusable metal to metal wedge seal with secondary o-ring seal
    • Only light torque required when tightening - NO MORE HAMMERS!
  • Stabber Pipes
    • Required for railcar angle valve connection
    • 2” size, MNPT x Hiltap HT3TL adaptor
  • Grounding Monitor
    • Immediately shuts down system if ground is lost
    • Provides peace of mind that proper ground is present
  • Safety Breakaway Couplings
    • Minimize risk of catastrophic event during a pull-away
    • Protects Loading Arm and Rack Equipment
    • Protect loading facility and personnel
    • Prevent accidental spills
    • Re-connectable

About LPG

Liquefied petroleum gas (also called LPG, GPL, LP Gas, autogas, or liquid propane gas) is a flammable mixture of hydrocarbon gases used as a fuel in heating appliances and vehicles. It is increasingly used as an aerosol propellant and a refrigerant, replacing chlorofluorocarbons in an effort to reduce damage to the ozone layer.

Varieties of LPG bought and sold include mixes that are primarily propane (C3H8), primarily butane (C4H10) and, most commonly, mixes including both propane and butane, depending on the season — in winter more propane, in summer more butane. Propylene and butylenes are usually also present in small concentration. A powerful odorant, ethanethiol, is added so that leaks can be detected easily. The international standard is EN 589. In the United States, thiophene or amyl mercaptan are also approved odorants


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