Material of main parts of ash discharge fixed ball valve
| Serial number | Part name | carbon steel | Grey cast iron | Serial number | Part name | carbon steel | Grey cast iron |
| 1 | Bottom cover | 25 | 25 | 17 | Nut | 45 | 45 |
| 2 | Bottom cover screw | 35CrMoA | 35CrMoA | 18 | Double head stud | 35CrMoA | 35CrMoA |
| 3 | Washer | Graphite in metal | 19 | Sphere key | 40Cr | 40Cr | |
| 4 | Thrust bearing | Metal clip PTFE | 20 | Upper stem | 2Cr13 | 2Cr13 | |
| 5 | Lower stem | 20Cr13 | 20Cr13 | 21 | Stem “O” ring | Fluororubber | Fluororubber |
| 6 | Lower stem bearing | Metal clip PTFE | 22 | Packing O-ring | Fluororubber | Fluororubber | |
| 7 | Washer | Metal clip PTFE | 23 | Upper stem bearing | Metal clip PTFE | ||
| 8 | Drain plug | 20Cr13 | 20Cr13 | 24 | Thrust bearing | graphite | graphite |
| 9 | valve body | WCB | 25 | Stem packing box | 25 Chromium plating | 25 Chromium plating | |
| 10 | Seat O-ring | Fluororubber | 26 | Stem packing | graphite | graphite | |
| 11 | valve seat | PPL | PPL | 27 | Packing gland | WCB | WCB |
| 12 | Seat spring | 17-7PH | 17-7PH | 28 | Nut | 45 | 45 |
| 13 | Seat ring | 20Cr13 | 20Cr13 | 29 | Double head stud | 35CrMoA | 35CrMoA |
| 14 | sphere | 0Cr18Ni9 | 0Cr18Ni9 | 30 | screw | 35CrMoA | 35CrMoA |
| 15 | Valve cover | WCB | Grey cast iron | 31 | Bracket | WCB | WCB |
| 16 | Washer | Graphite in metal | 32 | key | 40Cr | 40Cr | |
Drawing of ash discharge fixed ball valve
Main connecting dimensions of fixed ball valve pn0.25 ~ 1.6Mpa for ash discharge
| DN(mm) | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | |
| series 1L | 203 | 222 | 241 | 305 | 356 | 394 | 457 | 533 | 610 | 686 | 762 | 864 | 914 | |
| series 2L | - | - | - | - | - | - | 500 | 600 | 700 | 800 | 900 | - | 1000 | |
| H | 102 | 114 | 127 | 152 | 184 | 219 | 273 | 360 | 395 | 430 | 470 | 550 | 580 | |
| Manual | H1 | 107 | 125 | 152 | 178 | 300 | 330 | 398 | 495 | 580 | 625 | 670 | 698 | 840 |
| E | - | - | - | - | - | - | 115 | 116 | 171 | 171 | 257 | 257 | 257 | |
| F | - | - | - | - | - | - | 350 | 350 | 400 | 420 | 400 | 420 | 400 | |
| W | 230 | 400 | 400 | 650 | 1050 | 1050 | 600 | 600 | 800 | 800 | 800 | 800 | 800 | |
| WT(kg) | 12 | 16 | 22 | 35 | 58 | 74 | 205 | 322 | 460 | 576 | 864 | 1280 | 1600 | |
| Electric | H2 | - | - | - | - | - | 554 | 600 | 652 | 760 | 770 | 830 | - | 940 |
| L1 | - | - | - | - | - | 235 | 235 | 235 | 259 | 400 | 400 | - | 410 | |
| Pneumatics | H3 | 274 | 379 | 389 | 479 | 552 | 666 | 736 | 926 | 1059 | 1127 | 1127 | 1468 | 1538 |
| L2 | 270 | 405 | 405 | 576 | 576 | 776 | 776 | 776 | 1060 | 1060 | 1060 | 1360 | 1360 | |
