Long pipe runs could move several millimeters or more as temperature changes. If that travel is ignored, the support could bind, the pipe could lift, or unwanted force might be transferred into equipment. A Sliding Insulated Pipe Support carries the vertical load while allowing controlled axial movement at the support point. Typical designs use an upper pipe connection, an intermediate sliding surface, and a lower base plate. Sizes could extend from DN50-DN1200 with design loads around 1-30ton. based on the insulation system, low-temperature arrangements might work from -196°C to +80°C, while heat-insulated versions might be configured for higher temperatures.
Travel ought to come from the piping calculation. Standard travel allowances such as ±50mm, ±100mm, or ±150mm are useful starting points, but the final value ought to come from stress analysis or calculated thermal expansion. The friction coefficient, surface material, base-plate length, and direction of movement then must be checked together. Clamp-on and welded connections could both be used, based on maintenance access and site restrictions. A Sliding Insulated Pipe Support performs best when the travel direction is clear, the base is level, and the insulation system is not crushed during tightening.
