1) Standards:
A) Manufacture: GB12238, JB/T8527, API609
B) Face to face/end to end dimensions: ANSI B16. 10, GB12221
C) Pipe flange: JB/T74 90, GB12380, HG20615~20635, SH3006, ANSI B16. 5
D) Testing and inspection: GB/T13927, API598
2) Body materials: CI, DI, WCB, SS
Disc: DI, SS304, SS316, Aluminum Bronze
Split Stem: WCB, SS416, SS304, SS316
Seat: NBR, EPDM, PTFE, VITON
3) Flange drilling: DIN PN10/PN16
BS4504, BS 10D/E
ISO2084, ISO2531
ANSI 125/150, AS2129
ASA125/150
JIS 5K/10K
4) Nominal Diameter: DN100~2000.
Dimensions
| DN | D | D1 | D2 | Lmax | lmin | h1 | h2 | N-φd |
| 100 | 220 | 180 | 158 | 216 | 174 | 110 | 170 | 8-φ18 |
| 125 | 250 | 210 | 184 | 232 | 186 | 123 | 182 | 8-φ18 |
| 150 | 285 | 240 | 212 | 239 | 194 | 140 | 210 | 8-φ22 |
| 200 | 340 | 295 | 268 | 264 | 214 | 170 | 238 | 8-φ22 |
| 250 | 395 | 350 | 320 | 296 | 235 | 195 | 270 | 12-φ22 |
| 300 | 445 | 400 | 370 | 300 | 250 | 222 | 300 | 12-φ22 |
| 350 | 505 | 460 | 430 | 320 | 270 | 252 | 330 | 16-φ22 |
| 400 | 565 | 515 | 482 | 332 | 282 | 285 | 368 | 16-φ26 |
| 450 | 615 | 565 | 532 | 355 | 305 | 310 | 402 | 20-φ26 |
| 500 | 670 | 620 | 585 | 365 | 315 | 337 | 438 | 20-φ26 |
| 600 | 780 | 725 | 685 | 420 | 370 | 393 | 490 | 20-φ30 |
| 700 | 895 | 840 | 800 | 446 | 396 | 450 | 558 | 24-φ30 |
| 800 | 1015 | 950 | 905 | 476 | 426 | 515 | 625 | 24-φ33 |
| 900 | 1115 | 1050 | 1005 | 506 | 456 | 560 | 685 | 28-φ33 |
| 1000 | 1230 | 1160 | 1110 | 516 | 466 | 610 | 750 | 28-φ36 |
| 1200 | 1455 | 1380 | 1330 | 560 | 510 | 725 | 880 | 32-φ39 |
| 1400 | 1675 | 1590 | 1530 | 590 | 540 | 840 | 987 | 36-φ42 |
| 1600 | 1915 | 1820 | 1750 | 630 | 585 | 960 | 1158 | 40-φ48 |
| 1800 | 2115 | 2020 | 1950 | 680 | 630 | 1060 | 1258 | 44-φ48 |
| 2000 | 2325 | 2230 | 2150 | 730 | 680 | 1165 | 1365 | 48-φ48 |
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