Know more about liquid loading arm
Question: Is it necessary to use loading arms for Class A, B, and C flammable liquid tankers?
Answer: Yes. The current national safety supervision regulations require the use of loading arms to replace old-fashioned hoses.
Question: How to determine the selection of loading arms for top loading and bottom loading in the petroleum and chemical industry?
Answer: The selection of loading arms for top loading and bottom loading is mainly determined by the form of the tanker, regardless of the elevation and size of the on-site pipelines.
Question: Does a loading arm fall under the category of pressure pipelines?
Answer: Yes. According to the regulations, pressure pipelines are defined as equipment in the form of pipes used for conveying gases or liquids with a certain pressure. The scope is defined as pipelines with a maximum working pressure greater than or equal to 0.1 MPa (gauge pressure) for gases, liquefied gases, vapor media, or flammable, explosive, toxic, corrosive liquids with a maximum working temperature higher than or equal to the standard boiling point, and with a nominal diameter greater than 25 mm. Loading arms mainly consist of fixed, swivel, operating, and balancing mechanisms, as well as oil pipes. The swivel mechanism (swivel joint) is carefully manufactured using forged steel or aluminum alloy, with internal composite ball bearings and special stainless steel sealing rings. It offers flexible rotation, reliable sealing performance, and durability. The balance system includes counterweights, torsion springs, compression springs, tension springs, screws, as well as hydraulic and pneumatic balancing methods, all of which allow for easy operation with minimal force.
