could anybody tell me anything about the liquid lines vibration? the system is a simple system. it's equiped with a copeland compressor(192m3/hr),a shell-tube economizer, a hp-rec., a DX-evap., a surge drum. The liquid line will start amazing vibration after the solenoid valve of the liquid line energized. The liquid is subcooled to 0C and the line is insulated so it seems to me that the flash gas will not happen to this line.

best regards
Jerrycool