Pipe Hangers & Supports Private Limited offers Rigid Strut/ Shock Absorber. Pipe Hangers & Supports Private Limited is an ISO 9001 - 2008 accredited company supplying a wide range of spring hangers, supports and accessories for power plants, refineries, nuclear installations and process industries. The Rigid Strut/ Shock Absorber are used as Dynamic Restraints in pipe work during transient Dynamic loadings when external forces such as safety relief valve blow out, sesimic events, water hammer, 2 phase flow etc acts on the pipe. The Rigid Strut/ Shock Absorber is used to prevent uncontrolled vibrations that can damage the pipe work.