• Sizes :2-1/2” through 36” (65 mm through 900 mm) • Working pressure : ASME Class 150, 2-1/2” through 36” (65 mm through 900 mm) : ASME Class 300, 2-1/2” through 24” (65 mm through 600 mm) : ASME Class 600, 3” through 12” (80 mm through 300 mm) • Operating Temperatures: Up to 1000º F (538º C) FEATURES AND BENEFITS • Two Body Styles-Flangeless wafer and threaded lug styles are available. • Heavy-duty Disc • Thrust Bearing/Disc Spacer • Internal Stop • Deep Stuffing Box for Extended Life • Lower Stem Disc Spring • Disc Design Reduces Seat Wear • Positively Retained Stem Prevents Blowouts • Three Seat Designs