The invention relates to a hose line having a flexible hose, having a sleeve-shaped hose connector which by way of a first hose connector part-region that is configured as a connector port projects through a hose opening that is provided at an end side of the hose into a contiguous hose end region of the hose, and which connector port has a second hose connector part-region which projects beyond the end side of the hose, which second hose connector part-region at the free end side thereof has an encircling seal retaining collar that projects on the circumference, wherein an annular flange is provided on the circumference of the second hose connector part-region, a union nut engaging behind said annular flange, and an annular seal being provided between said annular flange and the seal retaining collar.
The invention also relates to a filter screen for such a hose line.
Hose lines of the type mentioned at the outset are already known in the most varied embodiments. Such hose lines are thus used, for example, in order for a sanitary outlet fitting or a like water consumer point to be connected to an angle valve provided on a wall (cf. EP 2 940 364 A1). However, in sanitary water lines there is the problem that the water flow streaming through a water line can entrain remnants of chalk and dirt particles which subsequently can contaminate and impede the functioning of functional units which are provided in the onward course of the water line or at the outlet end and which, for example, regulate the maximum throughput and/or aerate the outflowing water and are intended to form the outflowing water into a homogenous, splash-free and pearly soft water jet.
Such functional units which are configured, for example, as jet regulators, optionally having a flow regulator provided upstream, or as jet aerators and are capable of being assembled on the water outlet of a sanitary outlet fitting are typically equipped with in inflow-side filter screen in order for dirt particles of this type to be filtered on the inflow side of said functional units. However, the space for respective functional units to be equipped with a filter screen is not available in all cases.
Therefore, a connector screw fitment provided in the course of a water line has been developed, in which connector screw fitment an annular seal can be placed between neighboring end faces of two line portions that are to be connected by way of the connector screw fitment, said annular seal in the annular opening of the annular shape thereof having a screen which by way of a crimped shell region is held in a friction-fitting or form-fitting manner on the interior circumference of the annular seal that delimits the annular opening.
Functional units which are configured as backflow preventers and are capable of being assembled in the course of a water line are thus already known from DE 297 03 335 U1 and DE 10 2016 012 646.9. The previously known backflow preventers have in each case one filter screen which is capable of being releasably latch-fitted to the inflow end side of said backflow preventers. However, the filter screens herein are not capable of being used without the assigned backflow preventer.