What type of structural supports should horizontal ASME containers be placed on for permanent installation?

For the permanent installation of horizontal ASME (American Society of Mechanical Engineers) containers, masonry supports are the most appropriate choice due to their durability, stability, and ability to withstand environmental conditions. Masonry materials, such as concrete or brick, provide a robust foundation that can handle the weight of the container and the forces exerted upon it without the risk of degradation over time.

Masonry supports also help maintain the alignment and integrity of the container, which is crucial for safe operation. Since horizontal ASME containers are often used for storing LP-gas, it's vital they are secured on a strong and stable base to prevent any potential hazards. This foundation can also help prevent corrosion and other issues that might be more prevalent with other materials, ensuring long-term safety and functionality.

In contrast, wooden supports might degrade over time due to moisture or pest damage, while metal supports, if not properly treated, can suffer from corrosion. Plastic supports lack the structural strength and resilience required for heavy containers under pressure. Therefore, using masonry is a best practice consistent with safety standards and engineering principles for the installation of these gas containers.