Steel packer OPD with double casing and ball-head nipple. Connection onto the grouting pump is done by means of coupler 4 jaws.
Plastic filling injector isn't fitted with clack valve.It is used for pressure-less and low-pressure grouting to 10 MPa.
Plastic filling injector with the clack-valve. It is used for a pressure-less and low-pressure grouting to 10 MPa (100 bars).