FIELD: manufacturing technology.
SUBSTANCE: invention relates to press-bushing (10) for connection of polymer pipes comprising cylindrical main part (12) with uniform thickness (14) of walls, wherein press bushing (10) comprises at least one ledge (18; 20), wherein at least one ledge (18, 20) is made in form of solid with main part (12) of part by folding material of walls (14) and wherein at least one protrusion (18, 20) forms wave apex (22; 24) with two wave apices (22, 24) connected by edges (26, 28, 30, 32), indicating in direction each other inner surfaces of which are located at a distance of max. 1 mm, in particular, max. 0.5 mm, preferably, max. 0.1 mm, or are in contact with each other. In the next aspect, the invention relates to a pressurized joint comprising press bushing (10) according to the invention and a support bushing which is intended for connection to the pipe, wherein press bushing (10) can be in a predetermined position engaged with the support bushing.
EFFECT: invention simplifies connection of the device.
15 cl, 10 dwg
