Slotting should be carried out according to the following principles: the slot width is 20Mm larger than the pipe diameter, and when there are multiple pipes, it is10 mm; Consideration should be given between pipelines; Slotting depth is greater than pipe diameter10 ~15 mm. When repairing the grooves on both sides, ensure that mortar can fill the gaps in the pipeline and prevent the pipeline from hollowing out. Generally, the slotted pipe diameter is DN 15~DN25, and only a few of them will be larger than DN25.

So: single tube: DN 15 width: 35mm depth: 30Mm double tube: DN 15 width: 60mm depth: 30Mm.

DN20 width: 40mm depth: 35MmDN20 width: 70mm depth: 35Mm

DN25 width: 45 mm depth: 40 mm; DN25 width: 80mm depth: 40Mm

DN32 width: 52mm depth: 47mm; DN32 width: 94 mm depth: 47 mm;

The other three pipes or other pipe diameters are inferred in this way.

Hope to adopt!