The storage area should be smooth and level. To facilitate handling and prevent damage, pipe bundles should be placed with wood supports at intervals of approximately 2 meters that match the frame spacing of the packages. Emphasis should be placed on long-term stacking height limits, as there is a tendency for creep loads under straight tube bundles, which is less than 2 meters under the wood frame (or if the diameter is greater than three times).
Where to stack block frames, the key is to maintain the frames tightly packed and vertically stacked alternately and evenly. Piles with greatly varying frame spacing should not be stacked with the wooden bearers packed together, side by side, as this effectively increases the load between the stacks and the load at time points. It is impractical and undesirable for vertical alignment of these stacks to cause longitudinal sliding instability during transportation. Additionally, at all stack heights, there will be a significant increase. Proper consideration should be given to providing lateral plate stability (e.g., wind resistance), which is typically a 1.2-meter-wide pile may be stacked to a height of 3 meters.
Coils are typically transported and stored within a short vertical plane, although this may be secured for availability, preserving tilted coils. If stacked horizontally, they should be placed on trays for convenient lifting slings. Coils stacked in this manner should also be limited to a height of 1.0 meter. Polyethylene (PE) pipes with black or white pigments offer good resistance to ultraviolet radiation. However, pipes with blue, orange, and yellow pigments may fade if exposed to direct sunlight for 6 months, so they should be covered for extended storage. Pipes showing significant fading should not be used in high-stress applications. In cases, pipes should be covered with black plastic in open areas.



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