锻钢硬密封浮动球阀采用单斜面弹性密封圈或V型槽弹性密封圈结构设计，当介质压力太小时，密封圈与球体的接触面积较小，故有较大的密封比压，确保可靠密封，介质压力较大时，密封圈与球体接触面积增大，故密封圈能受较大的介质推力而不会损坏。由于聚四乙烯等密封圈材料具有良好的自润滑性，与球体的摩擦损小，故锻钢硬密封球阀的使用寿命长。
| 主要零件 | 阀体 | A105 | LF2 | F304 | F304L | F316 | F316L | F51 |
| 球体、阀杆 | 420 | LF2 | F304 | F304L | F316 | F316L | F51 |
| 密封圈 | 特种硬化材料 |
| 填料、垫圈 | 柔性石墨环 柔性石墨缠绕垫 |
| 适用工况 | 适用介质 | 高温的或含有颗粒等介质 |
| 适用温度 | -28-400℃ -28-500℃ |
| 应用规范 | 设计制造接 | | GB12237-89 | API6D | JPI7S-48 | |
| 法兰迟寸接 | | JB79-59、GB9113、HG20592-97 | ANSI B16.5 | JIS B2212-2214 | |
| 结构长度接 | | GB12221-89 | ANSI B16.10 | JIS B2002 | |
| 检验试验接 | | GB/T13927-89 JB/T10092-99 | API598 | API598 | 
|
高压锻钢球阀,不锈钢锻钢法兰球阀,高压浮动球阀,Q41F/H主要连接尺寸(JB规格)
| 型号 | 公称通径 Dn (mm) | 尺 寸 (mm) |
| L | D | Dl | D2 | B-f | Z-φd | H | DO |
| Q41H-16P | 15 | 110 | 96 | 86 | 46 | 14-2 | 4-14 | 60 | 108 |
| 20 | 140 | 105 | 75 | 65 | 14-2 | 4-14 | 64 | 110 |
| 25 | 150 | 165 | 85 | 65 | 16-2 | 4-14 | 100 | 165 |
| 32 | 165 | 135 | 100 | 78 | 16-2 | 4-18 | 105 | 180 |
| 40 | 180 | 146 | 100 | 85 | 18-3 | 4-18 | 150 | 240 |
| 50 | 200 | 160 | 126 | 100 | 18-3 | 4-18 | 1100 | 240 |
| 65 | 220 | 180 | 145 | 110 | 18-3 | 4-18 | 195 | 320 |
| 80 | 260 | 195 | 160 | 135 | 20-3 | 8-18 | 216 | 360 |
| 100 | 280 | 216 | 180 | 165 | 20-3 | 8-18 | 260 | 400 |
| 125 | 320 | 246 | 210 | 186 | 22-3 | 8-18 | 280 | 500 |
| 150 | 360 | 280 | 2l0 | 210 | 2l-3 | 8-23 | 320 | 600 |
| 200 | 400 | 335 | 295 | 265 | 26-3 | 12-23 | 370 | 800 |
| 250 | 460 | 406 | 355 | 320 | 30-33 | 12-25 | | |
| 型号 | 公称通径 Dn (mm) | 尺 寸 (mm) |
| L | D | Dl | D2 | B-f | Z-φd | H | Do |
| Q41H-25P | 15 | 110 | 95 | 65 | 45 | 14-2 | 4-14 | 60 | 108 |
| 20 | 14O | 105 | 75 | 55 | 14-2 | 4-14 | 64 | 110 |
| 25 | 160 | 115 | 85 | B5 | 16-2 | l-14 | 100 | 165 |
| 32 | 166 | 136 | 100 | 78 | 16-2 | 4-18 | 106 | 180 |
| 4O | 180 | 146 | 100 | 85 | 18-3 | 4-18 | 160 | 24O |
| 50 | 200 | 160 | 126 | 100 | 20-3 | 4-18 | 205 | 270 |
| 65 | 220 | 180 | 145 | 110 | 22-3 | 8-18 | 215 | 360 |
| 80 | 260 | 195 | 160 | 136 | 22-3 | 8-18 | 230 | 4OO |
| 100 | 280 | 230 | 1100 | 165 | 24-3 | 8-23 | 270 | 500 |
| 125 | S20 | 270 | 220 | 188 | 28-3 | 8-26 | 300 | 600 |
| 150 | 360 | 300 | 260 | 218 | 30-3 | 8-26 | 340 | 1000 |
| 200 | 400 | 360 | 310 | 278 | 34-3 | 12-26 | 4OO | 1100 |
| 250 | 467 | 425 | 370 | 332 | 36-3 | 12-30 | | |
| 型号 | 公称通径 Dn (mm) | 尺 寸 (mm) |
| L | D | D1 | D2 | B-f | B-f | Z-φd | H |
| Q41H-40P | 15 | 110 | 96 | 66 | 46 | 40 | 16-2 | 4-14 | 80 |
| 20 | 140 | 105 | 75 | 65 | 5l | 16--2 | 4-14 | 66 |
| 25 | 150 | 116 | 85 | 65 | 58 | 16-2 | 4-14 | 100 |
| 32 | 180 | 135 | 100 | 78 | 66 | 18_S | 4-18 | 105 |
| 40 | 200 | 145 | 100 | 85 | 76 | 20-3 | 4-18 | 170 |
| 50 | 220 | 160 | 125 | 100 | 88 | 20-3 | 4-18 | 230 |
| 65 | 260 | 180 | 146 | 110 | IIO | 22-3 | 8-18 | 250 |
| 80 | 280 | 195 | 160 | 135 | 12l | 22-3 | 8-18 | 250 |
| 100 | 320 | 230 | 1100 | 160 | 150 | 24-3 | 8-23 | 296 |
| 125 | 400 | 270 | 220 | 188 | 176 | 28-3 | 8-25 | 330 |
| 150 | 400 | 300 | 250 | 218 | 204 | 30-3 | 8-26 | 376 |
| 200 | 457 | 376 | 320 | 282 | 260 | 38-3 | 12-30 | 440 |
| 250 | 533 | 446 | 385 | 346 | 313 | 42-3 | 12-3l |