Australian Pipeline Valve - Installation, Operation and Maintenance Manual 13 API6D THROUGH CONDUIT EXPANDING GATE VALVE - AP400-405 SERIES 5 . 0 V A LV E D I S A S S E M B LY The following should only be performed by an APV approved reconditioner. Note, The below parts refer to the general drawing labelled Diagram 1. This is a general overview drawing only. Each size & class range does vary so refer to the actual as-built drawing. 6 . 0 I N S P E C T I O N A N D R E PA I R S The following inspection and maintenance procedures of valve components should be performed by a professional valve repairer. Replace any parts that are damaged with genuine APV spare parts. The sampled diagram labelled Diagram 1 only shows the main parts. The Bill of Material varies according to size, class & trim, hence refer to as-built drawing. 6.1 BOLTS, NUTS AND THREADED COMPONENTS a- All bolts, nuts, and threaded particulars shall be cleaned with kerosene, dried and lubricated with protective oil. The body bolts should have a copper based anti-seize grease applied. To ensure grease does not dry or wash out and does prevent corrosion protective plastic nut caps with grease nipples are available. b- The threads should be visually inspected to verify the integrity of the components. If a gasket or seal is disturbed while removing or adjusting soft parts, APV recommends installing a new gasket or seal. A proper seal is required to ensure optimum operation. Check the stem sealing area for pressurised process fluids even after the valve has been removed from the pipeline, particularly when removing packing hardware or sealing rings.