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Installation Methods


Supply networks today at least in Germany virtually extend across the entire country. For this reason replacement and renovation, in particular using closed installation methods, are of greater significance than new construction. With all trenchless installation methods, there is an increased risk of pipe damage. The extent of this damage cannot be determined once the pipe is laid (black box installation!). For this reason, pipes with a protective outer layer are required and are therefore recommended by the DVGW. It is possible to differentiate in the context of installation methods between installation with or without a sand bed and trenchless methods. A large range of alternatives has developed in recent years for no-dig installation methods; these are examined in detail below.