TECH ALERT PDF LINK PAGE 3:16 PLUG VALVE MANUALS1” 3:16 Plug Valve SAFE-Weight Technical Manual2” 3:16 Plug Valve SAFE-Weight Technical Manual3” 3:16 Plug Valve SAFE-Weight Technical ManualCHOKE MANUALSManually Adjustable Choke Technical ManualDART CHECK VALVE MANUALSDart Check Valve Technical ManualLT PLUG VALVE MANUALS1” – 4 1/16” LT Full Bore Plug Valves Technical Manual