The Webtool WGO190 Cable Gripping & Lifting Tool is a gripping tool intended for use with wire ropes, flexible risers and umbilicals up to 190mm in diameter. It is designed for use in a subsea environment and operates hydraulically, with hydraulic motor driven clamp screws for back up where required. The maximum gripping force is 20 tonnes. The tool is designed to sustain a maximum lifting load of 20 tonnes.

The main gripper jaw cylinder is controlled by the ports marked “Jaw Close” and “Jaw Open”. The “Jaw Close” port is directly coupled to an integrated hydraulic intensifier which increases the pressure by a ratio of 4:1. That is, for every 1 bar input, the cylinder is pressurized to 4 bar. At an input pressure of 172.5 bar (690 bar internal pressure) the gripper jaw will exert a force of approximately 20 tonnes.

The piston of the gripper is fitted with an internal pressure relief valve on the “Jaw Close” side of the circuit. If the “Jaw Close” port is pressurized to above 187.5 bar (750 bar internal pressure) the relief valve will open, venting the pressure out through the “Jaw Open” port. The “Jaw Open” port used to retract the jaws is designed for a maximum input pressure of 210 bar