41898 | With 50 mm straight double connection
Multiport automatic safety valve.
The 1 ½" hydraulic safety valve in the drain is specially indicated for its installation in the drain outlet of an automatic selector valve of a pool sand filter.
Its use avoids water losses when the valve changes its working position and in case of power failure and the valve is in a position where the pool could be emptied.
Its use is recommended in installations with SYSTEM VRAC multiport valves.