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Directly buried fully welded ball valve
Valve body material: carbon steel
Core material: SUS 304
Valve stem material: 2Cr13, 304
Nominal pressure: 300LB~1500LB
Applicable temperature: -20 ℃~200 ℃
The direct buried fully welded ball valve can be directly buried underground without the need to build a tall valve well or underground operating room. It only needs to be operated on the ground with a T-shaped handle, eliminating the hidden danger of entering the underground operating room. Applicable media include water, natural gas, steam, and oil products.
Product size
| DN | PN | L | D | G1 | G2 | HMAX | t | s |
| 15 | 40 | 230 | 10 | 33.7 | 21.3 | 3000 | 2 | 115 |
| 20 | 40 | 230 | 15 | 42.4 | 26.7 | 3000 | 2.3 | 115 |
| 25 | 40 | 230 | 20 | 48.3 | 33.7 | 3000 | 2.6 | 150 |
| 32 | 40 | 260 | 25 | 60.3 | 42.4 | 3000 | 2.6 | 150 |
| 40 | 40 | 260 | 32 | 76.1 | 48.3 | 3000 | 2.6 | 170 |
| 50 | 40 | 300 | 39.5 | 88.9 | 60.3 | 3000 | 2.9 | 170 |
| 65 | 25 | 300 | 50 | 108 | 76.1 | 3000 | 2.9 | 290 |
| 80 | 25 | 300 | 65 | 117 | 88.9 | 3000 | 3.2 | 310 |
| 100 | 25 | 325 | 81.5 | 159 | 114 | 3000 | 3.6 | 380 |
| 125 | 25 | 325 | 102 | 193.7 | 140 | 3000 | 4 | 400 |
| 150 | 25 | 350 | 125 | 219.1 | 168.3 | 3000 | 4.5 | 320 |
| 200 | 25 | 400 | 152 | 273 | 219.1 | 3000 | 4.5 | 350 |
| 250 | 25 | 560 | 203 | 357 | 273 | 3000 | 5 | 350 |
| 300 | 25 | 635 | 254 | 427 | 325 | 3000 | 5.6 | 400 |
Valve stem torque
| Nominal Diameter | DN15 | DN20 | DN25 | DN32 | DN40 | DN50 | DN65 | DN80 | DN100 | DN125 | DN150 | DN200 | DN250 | DN300 |
| torque//.MI | 6 | 9 | 12 | 20 | 35 | 50 | 70 | 90 | 110 | 140 | 160 | 200 | 260 | 310 |
design basis
The design of the valve shall be in accordance with Q/320506 FDV01-20132:
1. 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 Steel Pipe Valves"
5. GB/T 37827-2019. "Welded Ball Valves for Urban Heating"
Material Science:
Valve body: 20#
Sphere: SUS304
Valve stem: 2Cr13
Valve stem seal: Perfluororubber
Ball seal: PTFE+C
Valve stem height and structural length according to customer requirements
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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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