• Blak-JAK Torque Pro

    Valve cover retention system designed to improve fluid end maintenance procedures while reducing risk exposure and minimizing downtime.

    NOV Mission's Blak-JAK Torque Pro Valve Cover Retention System utilizes a hydraulic wrench to tighten and loosen the valve cap retainer and then requires only a quarter turn to remove the retainer. This quick and easy valve access allows for faster change-outs and improved safety by eliminating the need for hammers. This system works with OEM valve covers as well as Mission "L" style plugs. No modification to the fluid end is required.


    The Blak-JAK Torque Pro is patent pending.



    • Eliminates need for hammers
    • Reduces time required for change-outs
    • Quick and easy valve access
    • Requires only a quarter turn to remove retainer
    • Hydraulic wrench to tighten and loosen
    • Ensures a constant retainer thread torque for longer valve cover and gasket life


    System Components

    • Valve cap lug adapter assembly
    • Lug ring assembly
    • Torque Pro wrench
    • Stop locator

    Models Available

    • National 12-P-160 and 14-P-220
    • Oilwell A1700-PT "L" (5000 psi)
    • Continental Emsco FC-1600, FB-1600 "L", and FC-2200