Components 1 Body Casr iron 2 Seat Brass 3 Disc Cast iron or Ductile iron 4 Stem Stainless steel 5 Bonnet Cast iron 6 Hand wheel Ductile iron. Application 1 Face to face is accordinf to BS5163:1986 2 Flange drilled is according to BS4504/BS EN1092-2. TEST Working pressure 10bars 16bars Test pressure shell 15bars 24bars Seat 11bars 17.6bars. Dimensions DN 50 65 80 100 125 150 200 250 300 L 178 190 203 229 254 267 292 330 356 H 220 250 280 315 370 410 495 610 660 C 200 200 254 254 315 315 315 406 406 D(PN10) 165 185 200 220 250 285 340 395 445 D(PN16) 165 185 200 220 250 285 340 405 460.