| 摘要 |
The bend negotiating device for seal integrity testing, refurbishing, cleaning and suchlike has a body which is deflectable remotely controlled in all directions and angles through at least three lengthwise adjustable extension and compression elements (3,5) so that at branches, inlets or pipe junctions the device can be turned into one of the alternative paths. The extension and compression elements can be operated mechanically, pneumatically, hydraulically, electrically or electromechanically. |
