Production enforce standard
| Product specification | Design spec | Face to face | Flange end | Pressure-temp | Test&check |
| GB/T 12235 | GB/T 12221 | EN1092-1/1092-2 | GB/T 12224 | JB/T 9092 |
Material of Main Parts
| Name | Body | Disc | Seat | Stem | Handwheel |
| Material | WCB | 13CR | 13CR | 410 | DI |
Technical Data
| Nominal Pressure | PN16 | PN25 | PN40 | PN64 | Test Medium |
| Shell Test | (2.4MPa) | (3.75MPa) | (6.0MPa) | (9.6MPa) | Water |
| Seal Test | (1.76MPa) | (2.75MPa) | (4.4MPa) | (7.04MPa) | |
| Back Seal Test | (1.76MPa) | (2.75MPa) | (4.4MPa) | (7.04MPa) | |
| Air SealTest | 80Lb(0.6MPa) | 80Lb(0.6MPa) | 80Lb(0.6MPa) | 80Lb(0.6MPa) | Air |
| Suitable Temp | -29~425°C | ||||
| Suitable Media | Water/Steam/Oil | ||||
PN16
| DN | L | D | D1 | D2 | b | z-d | f |
| 50 | 250 | 160 | 125 | 102 | 18 | 4-19 | 2 |
| 65 | 270 | 180 | 145 | 122 | 18 | 4-19 | 2 |
| 80 | 280 | 195 | 160 | 138 | 20 | 8-19 | 2 |
| 100 | 300 | 215 | 180 | 158 | 20 | 8-19 | 2 |
| 125 | 325 | 245 | 210 | 188 | 22 | 8-19 | 2 |
| 150 | 350 | 280 | 240 | 212 | 22 | 8-23 | 2 |
| 200 | 400 | 335 | 295 | 268 | 24 | 12-23 | 2 |
| 250 | 450 | 400 | 355 | 320 | 26 | 12-26 | 2 |
| 300 | 500 | 455 | 410 | 378 | 28 | 16-26 | 2 |
| 350 | 550 | 515 | 470 | 438 | 30 | 16-26 | 2 |
| 400 | 600 | 575 | 525 | 490 | 32 | 16-30 | 2 |
| 450 | 650 | 635 | 585 | 550 | 40 | 20-30 | 2 |
| 500 | 700 | 710 | 650 | 610 | 44 | 20-33 | 2 |
PN25
| DN | L | D | D1 | D2 | b | z-d | f |
| 50 | 250 | 160 | 125 | 102 | 20 | 4-18 | 2 |
| 65 | 270 | 180 | 145 | 122 | 22 | 8-18 | 2 |
| 80 | 280 | 195 | 160 | 138 | 24 | 8-18 | 2 |
| 100 | 300 | 230 | 190 | 16 | 24 | 8-22 | 2 |
| 125 | 325 | 265 | 220 | 188 | 26 | 8-26 | 2 |
| 150 | 350 | 295 | 250 | 218 | 28 | 8-26 | 2 |
| 200 | 400 | 355 | 310 | 278 | 30 | 12-26 | 2 |
| 250 | 450 | 420 | 370 | 335 | 32 | 12-30 | 2 |
| 300 | 500 | 480 | 430 | 395 | 34 | 16-30 | 2 |
| 350 | 550 | 550 | 490 | 450 | 38 | 16-33 | 2 |
| 400 | 600 | 615 | 550 | 505 | 40 | 16-36 | 2 |
| 450 | 650 | 665 | 600 | 555 | 46 | 20-36 | 2 |
| 500 | 700 | 725 | 660 | 615 | 48 | 20-36 | 2 |
1.Casting
2.Processing
3. Assemble
4. Test
5. Spray paint
6. Inspection
