Introduction
The document introduces the Autolock hydraulic vise-grip, an innovative subsea locking device developed by QUIRI Hydromécanique. It is designed to provide a failsafe lockout mechanism capable of clamping forces ranging from 5 to 100 tons.

Specifications
The Autolock hydraulic vise-grip operates on the principle of a classical vise-grip but is specifically engineered for subsea applications. It can be activated using a hydraulic downline with a Hot Stab connection, which is plugged by a Remotely Operated Vehicle (ROV) to the Hydraulic Power Unit (HPU) located on board.

Operating Procedure
The device features a positive hydraulic locking mechanism where the piston is locked into the sleeve, similar to a press fit joint. Unlocking is achieved by applying pressure to the unlock port, allowing piston-rod movement. The vise-grip opens by applying pressure in the pulling chamber, while clamping force is achieved by pressurizing the pushing chamber. The clamping is locked by releasing pressure through the unlock port.

Applications
The Autolock hydraulic vise-grip is designed for diverless clamping operations at depths of up to 200 meters, making it suitable for various subsea engineering tasks.

Contact Information
QUIRI Hydromécanique is located at 6 rue Denis Papin, 67120 Duttlenheim, France. For inquiries, they can be contacted via phone at +33 3 88 04 84 00 or email at [email protected].