Setting Gaps
Ensure pipeline safety with KLAMFLEX setting gap guidelines that accommodate temperature changes and pipe movement. Includes recommendations for couplings and flange adaptors by size.
Setting Gaps
Ensure pipeline safety with KLAMFLEX setting gap guidelines that accommodate temperature changes and pipe movement. Includes recommendations for couplings and flange adaptors by size.
Why It Matters
Maintaining sufficient gaps between adjacent pipe ends helps prevent pipeline buckling as temperatures increase, particularly in above-ground pipes.
Recommended Setting Gaps
It is generally desirable that adjacent pipe ends do not make contact with each other in service. If there is insufficient gap, particularly on above-ground pipes, the pipeline will tend to buckle as temperatures increase.
We recommend maximum safe accumulated gaps which should not be exceeded in service. Also given are recommended setting gaps which allow for expansion and contraction or angularity in service.
Consideration of actual temperature movement or deflection conditions may lead to different initial setting gaps.
Locating Plugs
Where locating plugs are used, the setting gap should be increased by 9,5mm for sizes up to 324mm OD and 12,5mm for sizes above 324mm OD to avoid contact with the plugs.
| Coupling Size (DN) | Sleeve Length (mm) | Recommended Setting Gap Couplings (mm) |
Recommended Setting Gap Flange Adaptors (mm) |
Maximum Accumulated Gap (mm) |
|---|---|---|---|---|
| ≤ 50 | 83 mm | 14 mm | - | 25.5 mm |
| > 50 | 102 mm | 19 mm | 19 mm | 38 mm |
| ≤ 300 | 102 mm | 19 mm | 19 mm | 38 mm |
| > 300 | 178 mm | 38 mm | 32 mm | 76 mm |
| ≤ 1100 | 178 mm | 38 mm | 32 mm | 76 mm |
| ≥ 1200 | 356 mm | 38–57 mm | 32 mm | 114 mm |
THE MAXIMUM DIMENSIONS ABOVE MUST NOT BE EXCEEDED UNDER ANY CIRCUMSTANCES.