Caleffi 533751 22mm Pressure Reducing Valve 3 Bar Gauge Conn.

Pressure reducing valves are installed in residential water systems to reduce and stabilise inlet pressures from mains water supplies or boosted water systems, which generally are too high and variable for domestic appliances to function correctly.
The 533 Cold series is specially designed for cold services in houses or apartments to reduce or equalise the cold water supply and prevent excessive pressure at outlets such as taps and showers.