Product drawing


Product dimensions
| DN | D | D1 | L | L1 | H1 | H2 | Fully open flow coefficient/KVmax | Fully open resistance coefficient/ξmax |
| DN32 | 42 | 57 | 260 | - | 107 | - | 28.2 | 2.37 |
| DN40 | 48 | 76 | 300 | - | 123 | - | 37.5 | 2.91 |
| DN50 | 57 | 89 | 300 | - | 128 | - | 61.4 | 2.65 |
| DN65 | 76 | 114 | 300 | - | 158 | - | 85 | 3.95 |
| DN80 | 89 | 140 | 305 | - | 172 | - | 97 | 6.96 |
| DN100 | 108 | 159 | 325 | - | 182 | - | 170 | 5.53 |
| DN125 | 133 | 180 | 320 | - | 247 | - | 268 | 5.43 |
| DN150 | 159 | 219 | 350 | - | 266 | - | 303 | 8.82 |
| DN200 | 219 | 273 | 435 | 235 | 456 | 336 | 595 | 7.23 |
| DN250 | 273 | 351 | 560 | 280 | 535 | 375 | 890 | 7.88 |
| DN300 | 325 | 450 | 665 | 300 | 635 | 425 | 1374 | 6.86 |
Technical Documentation
1. Implement the standard GB/T 28636-2012
2. Structural Length Standard GB/T 12221-2005
3. Flange standard GB/T 17241.61 | GB/T 9113-2010
4. Test standard GB/T 13927-2022 | API 598-2023
Product Parts List
| Number | Name | Material | Number | Name | Material |
| 1 | Body tube | 20# | 11 | bearing | Low carbon steel+PTFE |
| 2 | take over | 20# | 12 | branch pipe | 20# |
| 3 | Regulating valve ball | CF8 | 13 | Valve stem O-ring | Fluoroplastic rubber FKM |
| 4 | valve seat | PTFE+C | 14 | washer | PTFE+C |
| 5 | Valve seat O-ring | Fluoroplastic rubberFKM | 15 | gland | 20# |
| 6 | support ring | 60Si2Mn | 16 | limit block | Q235 |
| 7 | disc spring | 60Si2Mn | 17 | External Circlips | 65Mn |
| 8 | Pressure measuring nozzle | H59-1 | 18 | handle | Steel No. 25 |
| 9 | valve stem | 2Cr13 | 19 | Hexagonal socket set screw | Steel 35 |
| 10 | Thrust washer | PTFE+C | - | - | - |
Related Information
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