Equalizer Flange Spreader: Case Study - Lifting of Sub-Sea Hang-Off
Dive teams had been unable to spread some of the hang‐off unit flanges due to there being insufficient gap available for the normal spreading wedges to be employed. The spreading force was unknown, though the weight of the hang‐off including the bend‐restrictor was thought to be around 10 tonnes. Heavy corrosion was suspected, so it was feared that considerable force would be required to break the initial adhesion between the flange faces.
Equalizer International was approached to suggest appropriate tooling for a difficult flange spreading scenario.