Vexve DN 15, Инструкция по установке, эксплуатации, настройке и техническому обслуживанию

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Note:
The valve must not be used as a terminal for the pipe – a cap plug must always be fitted
to the other side of the valve (see Figures 3 and 4).
If the valve is installed onto the end of a pipeline, there is a danger of corrosive, acidic water or air col-
lecting in the empty end of the valve. To prevent corrosion, there must be oxygen-free water in the section
beyond the valve.
Figure 4. Cap plug. There must be at least
200 mm of pipe between the valve and the cap
plug. Figure 3. The valve must not be used as a termi-
nal for the pipeline
4.2 Installation on the end of the pipe
Note:
If the valve and the cap plug are installed as the terminal for a pipeline, the valve must
be completely in the open position. A closed area must not be allowed to arise between
the valve and the cap plug because the valve may be damaged if the water expands in a
closed area (for example, due to a change in temperature).