The material selection of loading arms varies for different media
Loading arms feature flexible rotation, good sealing performance, and high technical complexity. They are widely used for tank truck filling of liquefied hazardous chemicals such as liquid chlorine, liquid ammonia, liquid caustic soda, dimethyl ether, liquefied petroleum gas, gasoline, and diesel. They enable safe and environmentally friendly transportation of fluid media, eliminating accidents like hose explosions during liquefied hazardous chemical filling that often cause casualties, economic losses, and safety/environmental issues. What considerations should be noted when selecting loading arm materials for various media?
In the petrochemical industry, there is a wide variety of liquid materials. It is necessary to determine a reasonable pipeline class based on the medium's temperature, pressure, and the environmental conditions where the loading arm is installed. Then, select materials rationally according to the following scenarios:
1. Common non-corrosive petrochemical liquid materials
Generally use high-quality carbon steel pipes.
2. Petrochemical liquid materials requiring purity maintenance
To prevent corrosion and contamination, loading arm pipes should adopt stainless steel pipes.
When liquid materials are directly used in the food industry, loading arm pipes must also use stainless steel to meet hygiene standards.
