glass flow indication sight glass / direct-reading / threaded

Before to assemble the flow indicator at the pipeline check inside the body and the threaded parts to be clean, possible impurities have to be removed in order to ensure a right functioning. If compressed air is at your disposal, use itfor a better cleaning. Screw the flow indicator at the threaded pipe using a suitable wrench. In older to get a correct sealing on threadings it is useful to employ PTFE, hempen tape or other product compatible with the fluid, in adequate quantity since an excessive employ could cause the couplings breakage.