Packer for pressing injectables in cracks and cavities in concrete, stone, has closing device for closing cross-section of longitudinal borehole and is arranged on side of insertion end and has non-return valve that is rectangular

摘要

The packer (10) comprises an elongated body (12) having a longitudinal borehole and an insertion end (30), and a closing device (40) for closing the cross-section of the longitudinal borehole. The closing device is arranged on the side of the insertion end and has a non-return valve. The closing device is fitted on the insertion end of the body. The non-return valve is rectangular, particularly square.