Design Specifications
| Design standards | Structure length | Flange connection | Test and inspection |
| AP16D BS1868 | ASME B16.10 | ASME B16.5 | API598 |
Pressure Test
| Pressure rate | Shell test (Mpa) | Sealing test (Mpa) | Temperature | Suitable medium |
| 150LB | 3 | 2 | ≤600℃ | Water,Oil,Gas |
| 300LB | 7.5 | 5.5 | ||
| 600LB | 15 | 11 | ||
| 900LB | 22.5 | 16.5 | ||
| 1500LB | 38.3 | 28.1 | ||
| 2500LB | 63.83 | 46.81 |
Material of Main Parts
| NO. | Part Name | Part Material |
| 1 | Body | ASTM A216-WCB ASTM A217-WC6,WC9,C5 ASTM A351-CF8,CF8M,CF3,CF3M |
| 2 | Seat | A105 F11,F22,F5,F9 F304.F316. F321.F304L,F316L |
| 3 | Disc | ASTM A216-WCB ASTM A217-WC6,WC9,C5 ASTM A351-CF8,CF8M,CF3,CF3M |
| 4 | Arm | ASTM A216-WCB ASTM A217-WC6,WC9,C5 ASTM A351-CF8,CF8M,CF3,CF3M |
| 5 | Pin | A105 F11,F22,F5,F9 F304.F316. F321.F304L,F316L |
| 6 | Racking | A193-B7, A320-B8A193-B8M |
| 7 | Stud | ASTMA193-B7,A320-B8,A193-B8M |
| 8 | Nut | ASTM A194-2H,A194-8,A194-8M |
| 9 | Gasket | Graphite&stainless steel |
1500LB Main External Dimension(Unit:mm)
| NPS | L | D | D1 | D2 | b | z-d |
| 2” | 368 | 215 | 165.1 | 92.1 | 46.1 | 8-26 |
| 2 1/2” | 419 | 245 | 190.5 | 104.8 | 48.3 | 8-29 |
| 3” | 470 | 265 | 203.2 | 127 | 54.7 | 8-32 |
| 4” | 546 | 310 | 241.3 | 157.2 | 61 | 8-35 |
| 5” | 673 | 375 | 292.1 | 185.7 | 80.1 | 8-41 |
| 6” | 705 | 395 | 317.5 | 215.9 | 89.6 | 12-38 |
| 8” | 832 | 485 | 393.7 | 269.9 | 99.1 | 12-4.5 |
| 10” | 991 | 585 | 482.6 | 323.8 | 115 | 12-51 |
| 12” | 1130 | 675 | 571.5 | 381 | 130.9 | 16-54 |
| 14” | 1257 | 750 | 635 | 412.8 | 140.4 | 16-60 |
| 16” | 1384 | 825 | 704.8 | 469.9 | 153.1 | 16-67 |
| 18” | 1537 | 915 | 774.7 | 533.4 | 169 | 16-73 |
| 20” | 1664 | 985 | 831.8 | 584.2 | 184.8 | 16-80 |
| 24” | 1943 | 1170 | 990.6 | 692.2 | 210.2 | 16-93 |
PN2500LB Main External Dimension(Unit:mm)
| NPS | L | D | D1 | D2 | b | z-d |
| 2” | 451 | 235 | 171.4 | 92.1 | 57.9 | 8-29 |
| 2 1/2” | 508 | 265 | 196.8 | 104.8 | 64.2 | 8-32 |
| 3” | 578 | 305 | 228.6 | 127 | 73.7 | 8-35 |
| 4” | 673 | 355 | 273 | 157.2 | 83.2 | 8-41 |
| 5” | 794 | 420 | 323.8 | 185.7 | 99.1 | 8-48 |
| 6” | 914 | 485 | 368.3 | 215.9 | 115 | 8-54 |
| 8” | 1022 | 550 | 438.2 | 269.9 | 134 | 12-54 |
| 10” | 1270 | 675 | 539.8 | 323.8 | 172.1 | 12-67 |
| 12” | 1422 | 760 | 619.1 | 381 | 191.2 | 12-73 |
