This may be a silly q but i have recently started working in commercial refrigeration and am wonder if any one has any helpful info on trouble shootin tx valves, i have a few systems running with full sight glasses and still not floodin evap correctly not sure if i may have restriction or if orifice needs changing or even checking and adjusting super heats i have many years expirence in domestic refrigeration and whitegoods so if any q's on these dont hesitate also ill be askin on pressure controls soon but more interested in txv's at moment thanks guys hope to chat about things soon