This device is ideal for stability testing. It completely unfolds the double locking seam. No cutting takes place and the seam remains intact. After the top and bottom is removed, the seam crevice can be inspected. In addition, since the method is nondestructive, valve assembly, vapor phase crevices, vapor phase corrosion, interfacial corrosion, liquid phase corrosion, weld and weld crevice corrosion can all be examined visually. The dies do not contact any area where the corrosion would exist. This device should be mounted down the surface it is being used on. For more information go to

Post time: 10-07-2016