A special compressible double packer has been developed for use with GMA's 2" Perforated ground pipe. This double packer is mechanically tensioned, injecting a specific zone/area into the ground pipe and then moved on to the next area.
In particularly poor ground conditions, the grout can also be supplemented with polyurethane via a separate pipe (Ø 6x1.5mm), which is also equipped with a separate check valve.
This special packer model is based on a GU54, which has an outer diameter of 51.5 mm before tightening.
