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结构特点
● 采用了聚四氟乙烯、填充聚四氟乙烯或柔性石墨制作的楔形环作辅助密封圈，提高了密封的使用温度和耐磨性
● 为小弹簧结构，非平衡型密封，轴向尺寸短，密封端面受压均匀
应用范围
●温 度 -50~500 ℃
●压 力 ≤1.7MPa
●线速度 ≤25m/sec
● 介质 水、油、有机溶剂及其它弱腐蚀性溶液.
| 型号MODEL | D | D1 | D3 | D4 | D7 | L | L1 |
| 59U-14 | 14 | 24 | 21 | 25 | 2 | 23 | 12.0 |
| 59U-16 | 16 | 26 | 23 | 27 | 2 | 23 | 12.0 |
| 59U-18 | 18 | 32 | 27 | 33 | 3 | 24 | 13.5 |
| 59U-20 | 20 | 34 | 29 | 35 | 3 | 24 | 13.5 |
| 59U-22 | 22 | 36 | 31 | 37 | 3 | 24 | 13.5 |
| 59U-24 | 24 | 38 | 33 | 39 | 3 | 26.7 | 13.5 |
| 59U-25 | 25 | 39 | 34 | 40 | 3 | 27 | 13.0 |
| 59U-28 | 28 | 42 | 37 | 43 | 3 | 30 | 12.5 |
| 59U-30 | 30 | 44 | 39 | 45 | 3 | 30.5 | 12.0 |
| 59U-32 | 32 | 46 | 42 | 48 | 3 | 30.5 | 12.0 |
| 59U-33 | 33 | 47 | 42 | 48 | 3 | 30.5 | 12.0 |
| 59U-35 | 35 | 49 | 44 | 50 | 3 | 30.5 | 12.0 |
| 59U-38 | 38 | 54 | 49 | 56 | 4 | 32 | 13.0 |
| 59U-40 | 40 | 56 | 51 | 58 | 4 | 32 | 13.0 |
| 59U-43 | 43 | 59 | 54 | 61 | 4 | 32 | 13.0 |
| 59U-45 | 45 | 61 | 56 | 63 | 4 | 32 | 13.0 |
| 59U-48 | 48 | 64 | 59 | 66 | 4 | 32 | 13.0 |
| 59U-50 | 50 | 66 | 62 | 70 | 4 | 34 | 13.5 |
| 59U-53 | 53 | 69 | 65 | 73 | 4 | 34 | 13.5 |
| 59U-55 | 55 | 71 | 67 | 75 | 4 | 34 | 13.5 |
| 59U-58 | 58 | 78 | 70 | 78 | 4 | 39 | 13.5 |
| 59U-60 | 60 | 80 | 72 | 80 | 4 | 39 | 13.5 |
| 59U-63 | 63 | 83 | 75 | 83 | 4 | 39 | 13.5 |
| 59U-65 | 65 | 85 | 77 | 85 | 4 | 39 | 13.5 |
| 59U-68 | 68 | 88 | 81 | 90 | 4 | 39 | 13.5 |
| 59U-70 | 70 | 90 | 83 | 92 | 4 | 45.5 | 14.5 |
| 59U-75 | 75 | 95 | 88 | 97 | 4 | 45.5 | 14.5 |
| 59U-80 | 80 | 104 | 95 | 105 | 4 | 45 | 15.0 |
| 58U-85 | 85 | 109 | 100 | 110 | 4 | 45 | 15.0 |
| 58U-90 | 90 | 114 | 105 | 115 | 4 | 50 | 15.0 |
| 58U-95 | 95 | 119 | 110 | 120 | 4 | 50 | 15.0 |
| 58U-100 | 100 | 124 | 115 | 125 | 4 | 50 | 15.0 |