3 modification of the overflow valve, 4 adjustment of the test pressure, 5 important notes on dismantling / installation – Richter GU/F Series Overflow Valves User Manual
Page 14: 6 replacement of components, 1 dismantling of the plug, 2 dismantling of the seat, 3 installation of the seat, 4 installation of the plug, Modification of the overflow valve, Adjustment of the test pressure
