The issue of installing compensator elbows one meter higher for pipes outside the boundary.
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For pipes larger than DN250, the elevation is increased by one meter, and compensators are installed; connection is achieved using either a 90-degree elbow or a 45-degree elbow, with two possible methods. 1. Starting from the bottom, first attach a 45-degree elbow, then a 90-degree elbow at an angle. 2. A 90-degree elbow from bottom to top, first with a 45-degree deflection followed by another 45-degree elbow. From the perspective of stress and compensation, which approach is better?
The larger the radius of the elbow R, the better; a larger value in any direction provides optimal flexibility. The weakest point is the arc length of the inner diameter of the elbow. It is also important to note that when there is fluid accumulation inside the pipe, if it bends downward, a point for draining the fluid should be provided. For reference
If the arm lengths of the π type are the same, the compensation capacity should be similar; 45° angles are preferred as they allow for saving space in the vertical direction.