Where to use Quarter Turn Concealed Valve? Sankar Krishna September 18, 2019 19:25 Updated Follow When water head / pressures are low, it is recommended to use a quarter turn mechanism for better flow control. Related articles In Which Direction Valve should be used? Where should solvent joint and pushfit joint are to be used? Where to use Full turn Concealed Valve? Comments 0 comments Please sign in to leave a comment.