Introduction 3 Safety Information 4-5 1.0 Preservation And Storage 5-6 1.1 Storage 5 1.2 Periodic maintenance during storage 5-6 1.3 Environmental considerations 6 2.0 Installation 6-11 2.1 Valve preparation 6-7 2.2 Valve installation 7-9 2.3 Maintenance prior to flushing 9 2.4 Flushing the pipeline 9-10 2.5 Maintenance post flushing 10 2.6 Commissioning 11 3.0 Removal From Line 12 4.0 Gearbox Removal 12 5.0 Valve Disassembly 13 6.0 Inspection And Repairs 13 6.1 Bolts, nuts and threaded components 13 7.0 Valve Assembly 14 7.1 Valve lubrication 14 7.2 Gearbox mounting to valve 14 7.3 Pressure Test 14 API6D THROUGH CONDUIT EXPANDING GATE VALVE - AP400-405 SERIES I N D E X Australian Pipeline Valve - Installation, Operation and Maintenance Manual 1