MWPC涂胶中壁护套管产品由热缩套管层和低熔点高聚物的粘接层构成。产品加热时,外层收缩,内层熔融,从而使被防护带电体实现密封、绝缘一体化。主要用于小口径钢管、不锈钢等硬质物体的外防腐、加固,如声测管、混凝土埋地钢管的连接防水、防腐。用户也可选择不涂胶型中壁护套管,常用颜色为黑色,特殊颜色可定做。
2.技术参数
测试项目 | 测试方法 | 测试结果 |
拉伸强度 | ASTM D638 | ≥13Mpa |
断裂伸长率 | ASTM D638 | ≥450% |
击穿强度 | ASTM D149 | ≥25kv/mm |
体积电阻率 | ASTM D257 | ﹥1014Ω.cm |
吸水率 | ASTM D570 | ≤0.2% |
偏壁率 | ASTM D792 | ﹤30% |
剥离强度 | DIN 30672 | ≥125N/25m |
3.尺寸和包装
口径 | 收缩前(mm) | 收缩后(mm) | 包装 (M/PC) | ||
内径 | 壁厚 | 内径 | 壁厚 | ||
?30/8 | ≥30 | 1.0+0.1 | 8.0 | 2.0±0.1 | 1~1.22 |
?30/12 | ≥30 | 1.0+0.1 | 12.0 | 2.0±0.1 | 1~1.22 |
?35/14 | ≥35 | 1.0+0.1 | 14.0 | 2.0±0.1 | 1~1.22 |
?40/16 | ≥40 | 1.0+0.1 | 16.0 | 2.0±0.1 | 1~1.22 |
?50/20 | ≥50 | 1.0+0.1 | 20.0 | 2.2±0.1 | 1~1.22 |
?65/25 | ≥65 | 1.0+0.1 | 25.0 | 2.2±0.1 | 1~1.22 |
?75/30 | ≥75 | 1.0+0.1 | 30.0 | 2.2±0.1 | 1~1.22 |
?85/35 | ≥85 | 1.0+0.1 | 35.0 | 2.2±0.1 | 1~1.22 |
?95/40 | ≥95 | 1.0+0.1 | 40.0 | 2.3±0.1 | 1~1.22 |
?100/45 | ≥100 | 1.1+0.1 | 45.0 | 2.3±0.1 | 1~1.22 |
?120/50 | ≥120 | 1.1+0.1 | 50.0 | 2.4±0.1 | 1~1.22 |
?150/60 | ≥150 | 1.1+0.1 | 60.0 | 2.5±0.1 | 1~1.22 |
?160/60 | ≥160 | 1.1+0.1 | 60.0 | 2.7±0.1 | 1~1.22 |
?180/60 | ≥180 | 1.1+0.1 | 60.0 | 3.0±0.1 | 1~1.22 |
?200/60 | ≥200 | 1.1+0.1 | 60.0 | 3.3±0.1 | 1~1.22 |