FIELD: machine building.
SUBSTANCE: inversion of insert vulcanised on site to restored pipeline is performed using flexible hose by means of inverting device having at least one stiff cuff that is switched on from time to time. In side wall of hose there is fluid medium opening to be used with device having two cuffs. Hose includes section of impregnated material, which is fixed in inverting device by means of banded casing equipped with inlet opening for inverting and/or vulcanising fluid medium. Hose and device are intended for air inversion and vulcanisation of insert with steam supplied through perforated lay-flat hose. Flexible hose has the size similar to that of installed insert and is intended for multiple use.
EFFECT: shortening of preparation time for installation using inverting device with two cuffs.
14 cl, 10 dwg
Authors
Dates
2012-12-27—Published
2007-08-29—Filed