详细说明
设计制造标准是API 600、API 608管路中主要用来做切断、分配和改变介质的流动方向。美标球阀的工作原理是靠旋转阀恋来使阀门畅通或闭塞。球阀开关轻便，体积小，可以做成很大口径，密封可靠，结构简单，维修方便，密封面与球面常在闭合状态，不易被介质冲蚀，在各行业得到广泛的应用。
产品型号:Q41F
公称尺寸:2"
公称压力:150Lb
阀体材质:CF8美标球阀产品性能规范
| 公称压力(PN) | 1.6 | 2.5 | 4.0 | 6.4 |
| 壳体试验压力 | 2.4 | 3.8 | 6.0 | 9.6 |
| 密封试验(液) | 1.8 | 2.8 | 4.4 | 7.0 |
| 密封试验(气) | 0.5～0.7 |
| 适用介质 | CPR水、油品、蒸气硝酸类醋酸类 |
| 适用温度 | ≤200℃ |
美标球阀主要零件材料
| 名称 | WCB类 | CF8类 | CF3类 | CF8M类 | CF3M类 |
| 阀体左体 | A216-WCB | A315-CF8 | A35-CF3 | A351-CF8M | A351-CF3M |
| 球体 | B2-B8 | A105-1025 | A182-F304L | A182-F304L | A132-F316 | A182-F316L |
| B8以上 | A216-WCB | A351-CF8M | A351-CF3 | A351-CF8M | A351-CF3M |
| 阀杆 | A182-F6a | A182-F304 | A182-F304L | A182-F336 | A182-F316L |
| 阀座 | PTFE/增强PTFE/NYLIN PTFE/Reinforced PTFE/Nyion |
| 阀座支承圈 | A105-1025 | A182-F304 | A182-F304L | A182-F316 | A182-F316L |
| 弹簧 | | 3yc-7/17-49H |
| O形圈 | NBR | 氟橡胶 |
| 螺柱 | A193-B7 | A193-B8 |
| 螺母 | A194-2H | A194-8 |
美标球阀150Lb外形尺寸和连接尺寸
| 公称通径NPS | 单位 | L | D | T | G | C | n-φd | W | H |
| in | mm |
| 1/2" | 15 | mm | 108 | 89 | 12 | 35 | 60.5 | 4-15 | 115 | 72 |
| in | 4.25 | 3.5 | 0.47 | 1.38 | 2.38 | 4-0.59 | 4.53 | 28.3 |
| 3/4" | 20 | mm | 117 | 98 | 12 | 43 | 70 | 4-15 | 115 | 76 |
| in | 4.61 | 3.86 | 0.47 | 1.69 | 2.76 | 4-0.59 | 4.53 | 29.9 |
| 1" | 25 | mm | 127 | 108 | 12 | 51 | 79.5 | 4-15 | 150 | 92 |
| in | 5 | 4.25 | 0.47 | 2 | 3.13 | 4-0.59 | 5.9 | 3.62 |
| 11/2" | 40 | mm | 165 | 127 | 14.3 | 73 | 98.5 | 4-16 | 200 | 123 |
| in | 6.5 | 5 | 0.56 | 2.88 | 3.88 | 4-0.62 | 7.87 | 4.84 |
| 2" | 50 | mm | 178 | 152 | 15.9 | 92 | 120.5 | 4-19 | 200 | 132 |
| in | 7 | 6.00 | 0.625 | 3.62 | 4.75 | 4-0.75 | 7.87 | 5.20 |
| 21/2" | 65 | mm | 190 | 178 | 17.5 | 105 | 139.5 | 4-19 | 320 | 164 |
| in | 7.5 | 7 | 0.69 | 4.12 | 5.5. | 4-0.75 | 12.6 | 6.45 |
| 3" | 80 | mm | 203 | 190 | 19.1 | 127 | 152.4 | 4-19 | 320 | 173 |
| in | 8 | 7.50 | 0.75 | 5 | 6 | 4-0.75 | 12.6 | 6.8 |
| 4" | 100 | mm | 229 | 229 | 23.9 | 157 | 190.5 | 8-19 | 450 | 210 |
| in | 9 | 9 | 0.94 | 6.19 | 7.5 | 8-0.75 | 17.72 | 8.26 |
| 6" | 150 | mm | 394 | 279 | 26 | 216 | 241.5 | 8-22 | 8000 | 288 |
| in | 15.5 | 10.98 | 1.02 | 8.5 | 9.50 | 8-0.88 | 31.5 | 1.34 |
| 8" | 200 | mm | 457 | 343 | 29 | 270 | 298.5 | 8-22 | 1120 | 374 |
| in | 18.00 | 13.50 | 1.12 | 10.62 | 11.75 | 8-0.88 | 44.10 | 14.72 |
| 10" | 250 | mm | 533 | 406 | 31 | 324 | 362 | 12-25 | 1420 | 366 |
| in | 20.98 | 16 | 1.2 | 12.75 | 14.75 | 12-1 | 55.12 | 14.40 |
| 12" | 300 | mm | 610 | 483 | 32 | 381 | 432 | 12-25 | 1420 | 412 |
| in | 24 | 19 | 1.26 | 15 | 17 | 12-1 | 55.12 | 16.22 |