What is sealed loading arm? It is a method of closed loading of liquid goods using a loading arm(fluid loading and unloading arm) in a closed manner, specifically designed for loading tankers used in cars or trucks. The purpose of this closed loading method is mainly because most liquids have volatile properties, and the use of a closed loading and unloading loading armis to achieve closed loading of volatile chemical liquids and oil products.
A common loading arm(fluid loading and unloading arm) is a piece of equipment composed of flexible and well-sealed rotating joints connected in a series with pipes. It is used for transferring liquid goods between tankers and storage pipelines in a dockyard.
The key component, the rotating joint, is precisely processed using computer-controlled machinery and incorporates a double roller bearing structure, making it flexible, lightweight, and reliable. The outer ring is made of alloy steel, and the inner ring is made of stainless steel or lined with polytetrafluoroethylene (PTFE) to ensure safe and reliable usage with high temperatures, low temperatures, or highly corrosive mediums.
closed loading arm is a component used in the closed loading and unloading process. Its structure includes a stainless steel sealing surface for the rotating joint, and the sealing material is made of fluororubber or polytetrafluoroethylene (PTFE) for high precision, flexible operation, reliable sealing, long service life, and easy maintenance and replacement of the sealing material. The main body material of the loading armcan be carbon steel, stainless steel, or lined with fluorine materials, depending on the nature of the loading and unloading medium. Additionally, a diversion head is installed at the outlet of the vertical pipe to reduce oil splashing, evaporation, and static electricity generation. The bend and outer jacket of the small rotating joint above the vertical pipe are made of aluminum alloy to prevent sparks from occurring when in contact with the tank opening. loading arms with pillars have adjustable-height loose flanges, allowing for a height difference of up to 50mm between the connecting flange surface and the dock surface, facilitating installation and repositioning of the loading arm.
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