Viega 4987.2, Инструкция по эксплуатации, Страница: 9 / 14

2.3 Product description
2.3.1 Overview
1 2
3 4
Fig. 3: Backflow trap Grundfix type 1
1 - lid
2 - emergency lock actuation
3 - shutter valve
4 - base unit
2.3.2 Operating mode
In the case of backflow, the pipeline will be closed by the shutter valve
in the backflow trap. In addition, the shutter valve can be closed man-
ually using a manual actuator.
2.3.3 Control elements
1
Fig. 4: Control elements backflow trap
1 - Emergency shut-off
Product information
Grundfix backflow trap type 1 9 from 14