STEM, VALVE: VALVE STYLE PNEUMATIC DRIVEN PISTON AND BOTTOM, VALVE SIZE DN 28, MATERIAL SS ASTM A182 GR F51, FFT:WITH DISK ,FOR VALVE MODEL/SERIAL-0455 964201A 0455 964201B; MANUFACTURER-FETTEROLF 846,RUEDES EGLAULIENS 73230 STALBAN LEYSSE FRANCE; PHONE-33 79 75 1044; FAX-33 79 75 20 02, MNFR: FETTEROLF CORPORATION MNFR PART NO: 30TGR4746DA, DRAWING 045 S 0016 REV: 0 ITEM NO: 30