结构特点
M74D型双端面机械密封设计特点与M7型单端面密封相同，密封易互换。除传动座的安装长度外，其他安装尺寸（D1<100MM）。
技术参数
规格: 10~200MM
压力: ≤2.5MPA
温度 : -50℃~220℃
线速度 : ≤20M/SEC
| D1 | D3 | D6 | D7 | D8 | 11 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 131 | MX |
| 18 | 33 | 27 | 33 | 3 | 61 | 38 | 19 | 2 | 5 | 9 | 19.5 | 11.5 | 17 | M5 |
| 20 | 35 | 29 | 35 | 3 | 61 | 38 | 19 | 2 | 5 | 9 | 19.5 | 11.5 | 17 | M5 |
| 25 | 40 | 34 | 40 | 3 | 61 | 38 | 19 | 2 | 5 | 9 | 19.5 | 11.5 | 17 | M5 |
| 30 | 45 | 39 | 45 | 3 | 62 | 39 | 19.5 | 2 | 5 | 9 | 19.5 | 11.5 | 17.5 | M6 |
| 35 | 50 | 44 | 50 | 3 | 62 | 39 | 19.5 | 2 | 5 | 9 | 19.5 | 11.5 | 17.5 | M6 |
| 40 | 57 | 51 | 58 | 4 | 70 | 42 | 21 | 2 | 6 | 9 | 22 | 14 | 19 | M6 |
| 45 | 62 | 56 | 63 | 4 | 70 | 42 | 21 | 2 | 6 | 9 | 22 | 14 | 19 | M6 |
| 50 | 67 | 62 | 70 | 4 | 73 | 43 | 21.5 | 2.5 | 6 | 9 | 23 | 15 | 19.5 | M6 |
| 55 | 72 | 67 | 75 | 4 | 73 | 43 | 21.5 | 2.5 | 6 | 9 | 23 | 15 | 19.5 | M8 |
| 60 | 81 | 72 | 80 | 4 | 86 | 56 | 28 | 2.5 | 6 | 9 | 23 | 15 | 23.5 | M8 |
| 65 | 86 | 77 | 85 | 4 | 85 | 55 | 27.5 | 2.5 | 6 | 9 | 23 | 15 | 24.5 | M8 |
| 70 | 91 | 83 | 92 | 4 | 92 | 56 | 28 | 2.5 | 7 | 9 | 26 | 18 | 23.5 | M8 |
| 75 | 99 | 88 | 97 | 4 | 92 | 56 | 28 | 2.5 | 7 | 9 | 26 | 18 | 25.5 | M8 |
| 80 | 104 | 95 | 105 | 4 | 92.5 | 56 | 28 | 3 | 7 | 9 | 26.2 | 18.2 | 25.5 | M8 |
| 85 | 109 | 100 | 110 | 4 | 92.5 | 56 | 28 | 3 | 7 | 9 | 26.2 | 18.2 | 25 | M8 |
| 90 | 114 | 105 | 115 | 4 | 92.5 | 56 | 28 | 3 | 7 | 9 | 26.2 | 18.2 | 25.5 | M8 |
| 95 | 119 | 110 | 120 | 4 | 90.5 | 56 | 28 | 3 | 7 | 9 | 25.2 | 17.2 | 25 | M8 |
| 100 | 124 | 115 | 125 | 4 | 90.5 | 56 | 28 | 3 | 7 | 9 | 25.2 | 17.2 | 25 | M8 |
| 105 | 138 | 122 | 134 | 5 | 108 | 68 | 34 | 2 | 10 | 9 | 30 | 20 | 30.5 | M8 |
| 110 | 143 | 128 | 140 | 5 | 110 | 70 | 35 | 2 | 10 | 30 | 20 | 31.5 | M8 | |
| 115 | 148 | 136 | 148 | 5 | 110 | 70 | 35 | 2 | 10 | 30 | 20 | 31.5 | M8 | |
| 120 | 153 | 138 | 150 | 5 | 110 | 70 | 35 | 2 | 10 | 30 | 20 | 31.5 | M8 | |
| 125 | 158 | 142 | 154 | 5 | 110 | 70 | 35 | 2 | 10 | 30 | 20 | 31.5 | M8 | |
| 130 | 163 | 146 | 158 | 5 | 110 | 70 | 35 | 2 | 10 | 30 | 20 | 31.5 | M8 | |
| 135 | 168 | 152 | 164 | 5 | 110 | 70 | 35 | 2 | 10 | 30 | 20 | 31.5 | M8 | |
| 140 | 173 | 156 | 168 | 5 | 110 | 70 | 35 | 2 | 10 | 30 | 20 | 31.5 | M8 | |
| 145 | 178 | 161 | 173 | 5 | 110 | 70 | 35 | 2 | 10 | 30 | 20 | 31.5 | M8 | |
| 150 | 183 | 168 | 180 | 5 | 110 | 70 | 35 | 2 | 10 | 32 | 22 | 31.5 | M8 |
冀公网安备13010402003046号
