Steam Jacketed Loading Arms

OPW Engineered Systems offers the world’s most complete line of Steam Jacketed Loading Arm Solutions.   All OPW Loading Arms can be fully or partially jacketed for efficient handling of asphalt, molten sulfer, waxes, resins and other products that are highly viscous or tend to solidify at ambient temperatures.

  • Top & Bottom Designs available
  • Custom designed based on product, temperature, reach and flexibility of your application
  • Rugged construction in carbon steel or stainless steel
  • Available in 2”, 3”, 4” and 6” sizes


Custom Insulation Packages

OPW can provide a Custom Insulation Package designed specifically for your loading arm. Unlike field-applied insulation, these packages are completely removable and reusable, making them the ideal solution for loading arm use. 

  • Removable & Reusable
  • Safer – Heated arms can pose a potential burn hazard to operators. OPW Insulation Packages ensures that the loading arm is properly insulated to protect your personnel.
  • Superior Heat Retention
  • Durable

Construction Details:

  • Inner Jacketing – 17 oz/sq. yd Teflon® Impregnated Fiberglass Cloth
  • Outer Jacketing - 17 oz/sq. yd Teflon® Impregnated Fiberglass Cloth
  • Insulation – 2” THK, low-density Fiberglass
  • Thread - Teflon®-coated Fiberglass Thread
  • Attachments - Teflon® Cloth Belts with stainless-steel double-D rings; drawstring flaps with Nomex Cord
  • I.D. Tags – Stainless-steel embossed


Following are several example drawings that have been applied in this application.


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