Steel flange 1)ansi(asme)b16.5 nps 1/2 "-24" rating 150lbs-2500 lbs so sw wn bl lj thr. 2)mss sp-44 nps 26"-60"150lbs - 900 lbs wn bl. 3)api 605 nps 26"-60" rating 75 lbs-300 lbs wn bl. 4)bs3293 nps 26"-60" rating 150 lbs-600 lbs so wn 5)awwa c207 nps 1/2"-96" 86psi - 275psi so bl 6)asme b16.47 nps 26"-60"150lbs - 900lbs wn bl 7)slwn flanges.Nps 1/2"-12" 150lbs-2500 lbs 8)din standard pl wn lj so thr bl 9)bs 4504 sec.3.1/1989;bs10/1969 10)nfe 29203 so wn bl lj thr pl;pn6-pn100 11)uni standard pl wn lj so thr bl 12)jis 5k-40k:type:pl so wn sw bl;dn10-dn600 13)electric and hot dipped galvanized carbon steel flanges 1)ansi(asme)b16.5 nps 1/2 "-24" rating 150lbs-2500 lbs so sw wn bl lj thr. 2)mss sp-44 nps 26"-60"150lbs - 900 lbs wn bl. 3)api 605 nps 26"-60" rating 75 lbs-300 lbs wn bl. 4)bs3293 nps 26"-60" rating 150 lbs-600 lbs so wn 5)awwa c207 nps 1/2"-96" 86psi - 275psi so bl 6)asme b16.47 nps 26"-60"150lbs - 900lbs wn bl 7)slwn flanges.Nps 1/2"-12" 150lbs-2500 lbs 8)din standard pl wn lj so thr bl 9)bs 4504 sec.3.1/1989;bs10/1969 10)nfe 29203 so wn bl lj thr pl;pn6-pn100 11)uni standard pl wn lj so thr bl 12)jis 5k-40k:type:pl so wn sw bl;dn10-dn600 13)electric and hot dipped galvanized carbon steel flanges