Fastening techniques

Pipe clamps for aquatherm greenpipe pipes must be sized to match the external diameter of the plastic pipe. Take care that the fastening material does not mechanically damage the surface of the pipe (aquatherm greenpipe pipe clamps Art.-No. 60516 -60597). The ideal fastening material for aquatherm greenpipe pipes are rubber-lined pipe clamps. The rubber compounds are specially made for applications with plastic pipes.

Some types of fastening materials are designed to allow movement and others are designed to restrict movement entirely. It is important to distinguish on pipe assembly whether the fastening material is used a

  • a fixed point or
  • a sliding point

Fixed points

In principle, fixed points are used to divide the pipe into sections, restricting any uncontrolled movement of the pipe. Fixed points have to be measured and installed in a way that the forces of expansion of aquatherm greenpipe pipes, as well as probable additional loads, are accommodated.

When using threaded rods or threaded screws, the drop from the ceiling should be as short as possible. Swinging clamps should not be used as fixed points. Vertical distributions can be installed using only fixed points. Faser-composite risers do not require expansion loops, provided that fixed points are located immediately before or after a branch.

To compensate for the forces arising from the linear expansion of the pipe, there must be sufficient clamps and mountings. The aquatherm pipe clamps meet all requirements and, based on the installation instructions that follow in this chapter, are perfect for fixed point installations.

Sliding points

Sliding clamps must allow axial pipe movements without damaging the pipe. On locating a sliding clamp, make sure that movements of the pipelines are not hindered by walls, fittings, or mechanical equipment installed next to the clamps.

Installation advice

The aquatherm pipe clamps are perfectly suited for both fixed point and sliding point installations. For a fixed-point pipe hanger, a spacer is not used in the hanger except with UV or FS pipe. For a sliding point hanger, the same pipe clamp is used, but with spacers provided to allow movement of the pipe.