2 The restraint required by 17.4. 5.4. 2 is needed to prevent accumulated vertical movement when the riser is pressurized. Restraint is generally provided by use of a riser clamp at the underside of a flood slab.

What are riser clamps used for?

Riser clamps are a two point load bearing component and are usually used for vertical running pipe lines wherein shear lugs are welded to the pipe, the riser clamp top surface contacts the shear lug, and the load is transferred through the legs of the clamps to the support component such as a rigid rod, spring, etc.

How do riser clamps work?

A Riser clamp is a type of hardware used by mechanical building trades for pipe support in vertical runs of piping (risers) at each floor level. The devices are placed around the pipe and integral fasteners are then tightened to clamp them onto the pipe.