Features Outside Screw and Yoke (OS&Y) Two piece self aligning packing gland Captured Graphite Spiral wound gasket Integral backseat Socket weld ends to ASMS B6.11 Threaded Ends (NPT) to ANSI/ASME B1.20.1 NACE MR-01-75 Options Alternate Trims Alternate Body Materials Welded Seats Full Port