Water Meter Ball Valve ,water valve, brass ball valve ,ball valve ,Forged valve ,brass body ,lockable ball valve 1)2-pc. , 100% Full Port Opening valve with steel ... : House connection and drinking meter networks. Technical Specification Nominal pressure :1.6Mpa(200 psi) Working Medium: water ,oil ,gas ... key removed leaving the Ball Valve in either the on or off position and not able to be operated ...