FEATURES • Construction - API602, BS5352 & ANSI/ASME B16.34 • End Connections - Socket Weld : ANSI/ASME B16.11 Thread : ANSI/ASME B1.20.1 Butt Weld : ANSI/ASME B16.25 • Inspection & Test - API 598 / BS5146 No. Part Name 1 Body 2 Disc 3 Gasket 4 Bonnet 5 Bonnet Bolt 6 Name Plate 7 Ball 8 Seat Disc 9 Disc 10 Retaining Ring 11 Hinge 12 Hinge Pin 13 Support Bolted Cover (Spiral Wound Type) Bolted Cover (Ring Type Joint) Welded Cover (Full Penetration Welding) MATERIALS AUSTRALIAN PIPELINE VALVE 16 CHECK VALVES - SCREWED & WELD END SCREWED & WELD END CHECK VALVES 800 TO 2690 CLASS BOLTED & WELDED BONNET Piston check 6 5 4 3 2 1 Y-Piston check 7 Ball check 13 12 11 10 9 8 Swing check