Type "C" Safety Clamp is one of the most valuable tools on the Rig Floor. They are used to guard against dropping flush joint pipe, stream line drill collars, fishing tools, pre-pack gravel liners, wash pipe, etc.
By attaching hold down ears and using the clamp upside down, the clamp can be used as a holddown against floatation of surface pipe while cementing. Tapered Type Gripping Action: Each link has a separate tapered insert which is spring loaded. They act as individual gripping members. Using this wedge type gripping action: The harder the pull, the more they grip to avoid further movement. Adjusting for Different Pipe Diameters: The safety clamp consists of individual links, flexibly hinged together creating a uniform gripping pressure so that there is little danger of crushing thin wall pipe.
Safety clamps are not designed to hold or hoist the string weight – use in conjunction with slips. Note: Type CL are double screw.