The 5-Series Diaphragm Valve family shall include the Type 514, 515, 517, and 519.  The Type 514 body shall be true union.  The Type 515 body shall be spigot.  The Type 517 body shall be spigot and the end connection shall be flanged.  The Type 519 body shall be lateral style spigot.  All 5-Series Diaphragm Valves shall be bidirectional.  The bonnet to body connection shall be threaded.  The handle shall be lockable.  The diaphragm material shall be indicated by a color-specific insert.  The stroke shall be indicated by a graduated indicator.  Type 517 ANSI versions shall meet ANSI B16.5 150lb standards.  All  5-Series Diaphragm Valves with PTFE diaphragms shall have a non-bonded elastomeric backing and utilize FPM face seals if required.  All valves shall be tested in accordance with ISO9393 and designed to ISO16138 standards.  All valves shall be manufactured under ISO9001 for Quality and ISO14001 for Environmental Management.  Following assembly, every valve shall be tested and certified bubble-tight exceeding Class VI standards.