... ,300,400,600,900,1500,2500 Face:FF,RF,R ASTM A350 LF2 Weld neck flange 150lb,300lb,600lb1.specificationStandards: ANSI ... ,F316/F316L 7 AWWA C207 4"--144" Class B,D,E,F T/1 PL A105,A181 A36,A516Gr.60,65 ... 316S31 316S11 10 BS10-1962 STANDARD NB10-3000 TABLE D/ E /F/H/J SO THD BL WNBS1501-161 GR.B ... 1.4401 1.4404 1.4541 1.4571/DIN174402.picture ASTM A350 LF2 Weld neck flange 150lb,300lb,600lb