•150 LB 1/2" - 14" •300 LB 1/2" - 12" •400 LB 1/2" - 8" •600 LB 1/2" - 8" •900 LB 1/2" - 6" •1500 LB 1/2" - 6" •2500 LB 1/2" - 4" Threaded flange NPT Slip on flange •150 LB 1/2" - 12" RF •150 LB 1/2" - 12" RF •300 LB 1/2" - 12" RF •300 LB 1/2" - 12" RF •600 LB 1/2" - 8" RF / RTJ •600 LB 1/2" - 8" RF / RTJ •900 LB 1/2" - 6" RF / RTJ •900 LB 1/2" - 6" RF / RTJ •1500 LB 1/2" - 6" RF / RTJ •1500 LB 1/2" - 6" RF / RTJ •2500 LB 1/2" - 4" RF / RTJ Lap joint flange •150 LB 1/2" - 12" FF •300 LB 1/2" - 12" FF •400 LB 1/2" - 8" FF •600 LB 1/2" - 8" FF •900 LB 1/2" - 6" FF •1500 LB 1/2" - 6" FF •2500 LB 1/2" - 4" FF •150 LB 1/2" - 12" •300 LB 1/2" - 12" •600 LB 1/2" - 8" •1500 LB 1/2" - 6" Blind flange •150 LB 1/2" - 12" RF •150 LB 1/2" - 5" •300 LB 1/2" - 12" RF •300 LB 1/2" - 4" •400 LB 1/2" - 8" RF / RTJ •400 LB 1/2" - 3" •600 LB 1/2" - 8" RF / RTJ •600 LB 1/2" - 3" •900 LB 1/2" - 6" RF / RTJ •900 LB 1/2" - 2" •1500 LB 1/2" - 6" RF / RTJ •1500 LB 1/2" - 2" •2500 LB 1/2" - 4" RF / RTJ •2500 LB 1/2" - 2" 1/2"-4" SCH XXS/SOLID, 5"-8" SCH 80S RF / RTJ All SCH XXS/SOLID RF / RTJ Bossed Blind Flange ANSI FLANGES PRODUCTION SIZE RANGE ASME B16.5 All Grades 304 L, 316 L, F51, F53, F55, Titanium For grades F44 (SMO) and 904 L decrease range with one size All SCH XXS/SOLID RF / RTJ All SCH XXS/SOLID RF / RTJ Socket welding flange 1/2"-5" SCH XXS/SOLID, 6"-10" SCH 80S, 12" SCH 80 RF 1/2"-4" SCH XXS/SOLID, 5"-12" SCH 80S RF 1/2"-3" SCH XXS/SOLID, 4"-8" SCH 80S RF / RTJ All SCH XXS/SOLID RF / RTJ Welding neck flange 1/2"-4" SCH XXS/SOLID, 5"-14" SCH 80S RF 1/2"-4" SCH XXS/SOLID, 5"-12" SCH 80S RF 1/2"-4" SCH XXS/SOLID, 5"-8" SCH 80S RF / RTJ