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DHS is pu double wiper seal and rubber wiper seal component used in hydraulic and pneumatic systems to protect the internal components from contaminants such as dust, dirt, and moisture. It is designed to clean the rod or shaft as it retracts, preventing the ingress of external particles into the system.
DHS 是聚氨酯双唇密封件，用于液压和气动系统，保护内部组件免受灰尘、污垢和湿气等污染物的侵害。它旨在清洁缩回的杆或轴，防止外部颗粒进入系统。
设计说明：
DHS 防尘密封件是一种双唇防尘密封件，旨在防止污染物进入，面向介质的密封唇可减少残留油膜。聚氨酯材料可确保干摩擦期间的出色特性，从而提高耐磨性，DHS 双唇防尘密封件还具有良好的抗臭氧和气候条件辐射性能，从而延长了使用寿命。
当使用PTFE活塞杆密封件时，推荐使用DHS型双唇防尘密封圈。
| d | D | t | h | H | D2 | B | ISO | JIS |
| 18 | 26 | 4.5 | 6 | 5 | 22 | 2 | • | • |
| 20 | 28 | 4.5 | 6 | 5 | 24 | 2 | • | • |
| 22 | 30 | 4.5 | 6 | 5 | 26 | 2 | • | • |
| 25 | 33 | 4.5 | 6 | 5 | 27 | 2 | • | • |
| 28 | 36 | 4.5 | 6 | 5 | 32 | 2 | • | • |
| 30 | 38 | 4.5 | 6 | 5 | 34 | 2 | • | • |
| 30 | 38 | 5 | 6.5 | 6 | 34 | 2 | • | |
| 32 | 40 | 4.5 | 6 | 5 | 36 | 2 | • | • |
| 32 | 40 | 5 | 6.5 | 6 | 36 | 2 | • | |
| 35 | 43 | 4.5 | 6 | 5 | 39 | 2 | • | • |
| 35 | 43 | 5 | 6.5 | 6 | 39 | 2 | • | |
| 36 | 44 | 4.5 | 6 | 5 | 40 | 2 | • | • |
| 36 | 44 | 5 | 6.5 | 6 | 40 | 2 | • | |
| 38 | 46 | 4.5 | 6 | 5 | 42 | 2 | • | • |
| 38 | 46 | 5 | 6.5 | 6 | 42 | 2 | • | |
| 40 | 48 | 4.5 | 6 | 5 | 44 | 2 | • | • |
| 40 | 48 | 5 | 6.5 | 6 | 44 | 2 | • | |
| 45 | 53 | 4.5 | 6 | 5 | 49 | 2 | • | • |
| 45 | 53 | 5 | 6.5 | 6 | 49 | 2 | • | |
| 50 | 58 | 4.5 | 6 | 5 | 54 | 2 | • | • |
| 50 | 58 | 5 | 6.5 | 6 | 54 | 2 | • | |
| 53 | 61 | 5 | 6.5 | 6 | 57 | 2 | • | |
| 55 | 63 | 5 | 6.5 | 6 | 59 | 2 | • | |
| 55 | 65 | 5.3 | 6.8 | 6 | 60 | 2 | • | |
| 56 | 66 | 5.3 | 6.8 | 6 | 61 | 2 | • | |
| 60 | 68 | 5 | 6.5 | 6 | 64 | 2 | • | |
| 60 | 70 | 5.3 | 6.8 | 6 | 65 | 2 | • | |
| 63 | 71 | 5 | 6.5 | 6 | 67 | 2 | • | |
| 63 | 73 | 5.3 | 6.8 | 6 | 68 | 2 | • | |
| 65 | 73 | 5 | 6.5 | 6 | 69 | 2 | • |
| d | D | t | h | H | D2 | B | ISO | JIS |
| 65 | 75 | 5.3 | 6.8 | 6 | 70 | 2 | • | |
| 70 | 80 | 5.3 | 6.8 | 6 | 75 | 3 | • | |
| 70 | 80 | 6 | 8 | 7 | 75 | 3 | • | |
| 75 | 85 | 5.3 | 6.8 | 6 | 80 | 3 | • | |
| 75 | 85 | 6 | 8 | 7 | 80 | 3 | • | |
| 80 | 90 | 5.3 | 6.8 | 6 | 85 | 3 | • | |
| 80 | 90 | 6 | 8 | 7 | 85 | 3 | • | |
| 85 | 95 | 5.3 | 6.8 | 6 | 90 | 3 | • | |
| 85 | 95 | 6 | 8 | 7 | 90 | 3 | • | |
| 90 | 100 | 5.3 | 6.8 | 6 | 95 | 3 | • | |
| 90 | 100 | 6 | 8 | 7 | 95 | 3 | • | |
| 95 | 105 | 5.3 | 6.8 | 6 | 100 | 3 | • | |
| 95 | 105 | 6 | 8 | 7 | 100 | 3 | • | |
| 100 | 110 | 5.3 | 6.8 | 6 | 105 | 3 | • | |
| 100 | 110 | 6 | 8 | 7 | 105 | 3 | • | |
| 105 | 115 | 6 | 8 | 7 | 110 | 3 | • | |
| 110 | 120 | 6 | 8 | 7 | 115 | 3 | • | |
| 115 | 125 | 6 | 8 | 7 | 120 | 4 | • | |
| 120 | 130 | 6 | 8 | 7 | 125 | 4 | • | |
| 125 | 138 | 7 | 9.5 | 8 | 132 | 4 | • | |
| 130 | 143 | 7 | 9.5 | 8 | 137 | 4 | • | |
| 135 | 148 | 7 | 9.5 | 8 | 142 | 4 | • | |
| 140 | 153 | 7 | 9.5 | 8 | 147 | 4 | • | |
| 145 | 158 | 7 | 9.5 | 8 | 152 | 4 | • | |
| 150 | 163 | 7 | 9.5 | 8 | 157 | 4 | • | |
| 160 | 173 | 7 | 9.5 | 8 | 167 | 4 | • | |
| 170 | 183 | 7 | 9.5 | 8 | 177 | 4 | • | |
| 180 | 193 | 7 | 9.5 | 8 | 187 | 4 | • | |
| 190 | 203 | 7 | 9.5 | 8 | 197 | 5 | • | |
| 200 | 213 | 7 | 9.5 | 8 | 207 | 5 | • |
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