Chemical / Industrial - Top Loading / Unloading Arms

The variety of loading and unloading challenges are greatest in the chemical and industrial products industry. WSI’s range of Top and Bottom Loading/Unloading arms is specifically engineered to handle the exact nature of each chemical or industrial liquid or vapor being handled in and out of tank trucks, rail cars and ISO container tanks. Whether loading or unloading tar sands, acetones, molten sulfur or acids, WSI has a specific solution to handle each application safely and successfully…

Standard top and bottom loading arm configurations are often used for chemical and industrial products; however, all products require specialist knowledge and equipment for a safe, efficient transfer. Each WSI chemical and industrial loading/unloading arm is specifically engineered to match the exact nature of the product being handled. These are not petroleum loading arms with different elastomers…

Typical standard features
  • Sizes in 2”, 3”, 4” and 6”. Larger configurations available
  • Materials of construction: Carbon steels, aluminum, 304L, 316L and 904L stainless steel.
  • Exotic alloys, Duplex Stainless Steel, Super Duplex Stainless Steel, Alloy 20, Monel, Inconel & more.
  • All loading arm configurations can be PTFE lined
  • Dual race Split Flange WL2 or Single race WSS swivel joints
  • Seals in Viton™, Nitrile, EPDM, PTFE, Kalrez™ etc. to suit the specific application
  • Swivel joint leak detection systems
  • Heated and insulated arms (see Heated Loading /Unloading arms tab). All loading arm configurations can be heated
  • Compression spring, counterweight, pneumatic or hydraulic balance control systems
  • Top and bottom loading station configurations (Stand Post)
  • Vapor recovery
  • High-level detection systems
  • Purging systems
  • Control valves
  • Position sensors
  • Couplers and adapters

See Chemical and Industrial Loading Arm Options tab for additional optional equipment

All WSI loading arms are designed and manufactured within our certified ISO quality management systems and in line with ASME B31.3 Process Piping code. All loading arms and swivel joint assemblies are100% hydro tested. Dye penetrant testing and Radiography carried out to required specifications. Full manufacturing documentation and MTR’s can provided with each loading arm. Standard paint finish for carbon steel is shot blasting to SA 2 ½ and Poly Urethane RAL 7035 paint finish. Specific painting specifications also provided. If required, TPI will be provided

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