Valve installed in the water service line where it enters the building to reduce the pressure of water in the line to an acceptable pressure used in buildings (40-55 psi desired).
Found on
http://www.encyclo.co.uk/local/20933
a special valve installed on the main water line coming in to the home so that water entering the valve from municipal mains is constricted within the valve body. It reduces water pressure coming in to your home from the high level used by the water company down to a level that can be used in your home without damaging your fixtures.
Found on
https://www.encyclo.co.uk/local/22545
No exact match found.
