Pressure reduction valves: Regulating ability (NT VVS 031) Posted onMay 25, 1985September 25, 2020Author Report #: NT VVS 031 Approved: May 1985 Download pdf Size: 82.39 KB Abstract The test is designed to determine the regulating ability of the valve. The valve shall ensure that a pre-set secondary pressure is satisfactorily maintained during normal variations in the primary pressure and water flow. Categories
