◆ use: YQ-30 is the manual of integral hydraulic dilator. The wedge tip is inserted into the separation gap, hydraulic generating hand hydraulic pump, the wedge iron, internal expansion head, the wedge iron expand outwards, so that the object separation. Mainly used for pipeline repair debug, replacement, remove the flange and the need to expand the separation, where objects. Time saving, convenient, safe and reliable, durable, objects will not damage. As long as the socket width greater than 6mm can be inserted into the separation. The technical parameters: 1 tonnage: 8T. The 2 top thickness: 9mm. 3 stroke: 20mm. 4 the maximum opening distance: 56mm. 5 weight: 3kg. 6 packaging: plastic box.