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Fully welded ball valve, the valve is composed of three independent forged parts that are welded together to form a single unit, ensuring that the ball valve is connected to the valve body without leakage under allowable working conditions. The product is mainly used in natural gas, petroleum, water and other media, suitable for pipeline use in residential heating, urban gas, petrochemicals, steel, shipbuilding, metallurgy, power stations, pressure regulating stations and other industries.
Product drawings
Connection size
| DN | PN | L | D | D1 | D2 | D3 | H | h | T-e | t | N-ΦD | S |
| 15 | 40 | 130 | 10 | 33.7 | 65 | 95 | 85 | 33 | 16-2 | 4 | 4-14 | 115 |
| 20 | 40 | 150 | 15 | 42.4 | 75 | 105 | 90 | 33 | 18-2 | 4 | 4-14 | 115 |
| 25 | 40 | 160 | 20 | 48.3 | 85 | 115 | 95 | 37 | 18-2 | 4 | 4-14 | 160 |
| 32 | 40 | 180 | 25 | 60.3 | 100 | 140 | 100 | 37 | 18-2 | 4 | 4-18 | 160 |
| 40 | 40 | 200 | 32 | 76.1 | 110 | 150 | 120 | 50 | 18-2 | 5 | 4-18 | 170 |
| 50 | 40 | 230 | 40 | 88.9 | 125 | 165 | 124 | 50 | 20-2 | 5 | 4-18 | 170 |
| 65 | 25 | 270 | 50 | 108 | 145 | 185 | 134 | 65 | 22-2 | 6 | 8-18 | 300 |
| 80 | 25 | 280 | 65 | 127 | 160 | 200 | 142 | 65 | 24-2 | 6 | 8-18 | 300 |
| 100 | 25 | 300 | 80 | 159 | 190 | 235 | 172 | 75 | 24-2.5 | 6 | 7-22 | 380 |
| 125 | 25 | 325 | 100 | 194 | 220 | 270 | 189 | 77 | 28-2.5 | 7 | 8-26 | 410 |
| 150 | 25 | 350 | 125 | 219 | 250 | 300 | 210 | 82 | 28-2.5 | 8 | 8-26 | 410 |
| 200 | 25 | 400 | 150 | 273 | 320 | 375 | 264 | 84 | 34-2.5 | 8 | 12-30 | 600 |
Valve stem torque
| Nominal Diameter | DN15 | DN20 | DN25 | DN32 | DN40 | DN50 | DN65 | DN80 | DN100 | DN125 | DN150 | DN200 |
| torque/.MI | 6 | 9 | 12 | 20 | 35 | 50 | 70 | 90 | 110 | 140 | 160 | 200 |
design basis
1. The design of the valve shall comply with Q/320506 FDV01-20132: GB/T 12224-2005 "General Requirements for Steel Valves"
2. GB/T 12220-1989 "General Valve Marking"
3. GB/T 12223-2005 "Connection of Partial Rotary Valve Drive Devices"
4. JB/T 12006-2014 "Welded Ball Valves for Steel Pipes"
5. GB/T 37827-2019 "Welded Ball Valves for Urban Heating"
6. Flange surface standard: GB/T 9113
7. Flange end standard: GB/T 12221-2005
Product Parts List
| No. | name | Materials | No. | name | mild steel+PTFE |
| 1 | IGBT | 20# | 10 | bearing | 20# |
| 2 | take over | 20# | 11 | branch pipe | 20# |
| 3 | ball | 304 | 12 | Valve stem O-ring | Fluoroplastic rubber FKM |
| 4 | valve seat | PTFE+C | 13 | grommet | PTFE+C |
| 5 | Valve seat O-ring | Fluoroplastic rubber FKM | 14 | Packing gland | 20# |
| 6 | SUPPORT RING | 60Si2Mn | 15 | stop block | Q235 |
| 7 | disc spring | 60Si2Mn | 16 | External retaining ring | 65Mn |
| 8 | Stem | 2Cr13 | 17 | handle | 25steel |
| 9 | thrust pad | PTFE+C | 18 | Hexagonal socket set screw | 35steel |
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If you have any questions or suggestions about the product, or if you want to know more, you can contact us at any time.
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