• Hercules HP ROTA Stubbie BOP  

    The ROTA Stubbie design combines a standard dual-pin ram BOP with a tubing hanger adapter flange, eliminating several inches of stack height and getting rid of one ring gasket. We supply the tubing hanger in various shapes and sizes to fit your tubing hanger profile.




    • Save up to 6 in. of stack height and eliminate one connection with direct connect to tubing hanger
    • Available in thread down or tubing hanger adapter down
    • Ram blocks are greaseable while in service
    • Rams can be tested from either direction
    • NACE compliant


    • Stubbie eliminates one leak path and the need for adaptor flange
    • Available with tubing hanger adapter profile upon special request – profile per specific tubing hanger manufactures design
    • Patent-pending ram block design
    • Compact design only 17 in.
    • Rams offset to accommodate for long stroke pumping units
    • Provides two sets of ram blocks that can independently seal against the polished rod when it is stationary so that the stuffing box can be serviced
    • Provides a method of shutting in the well for testing, servicing, potential emergencies, or to protect against offset fracs   


    BX156 stud down available upon request

    Top connection  R27 stud and 2⅞-in. EUE box or R35 stud and 3½-in. EUE box
    Bottom connection  R46 stud down and 2⅞-in. box or BX156 stud down and special bore *suitable to match tubing hanger requirements
    Vertical bore  2.56 or 3.145 in.
    Working pressure  5,000 or 10,000 psi
    Body and cap material  Forged steel
    Ram material  Alloy steel
    Ram screw and packing gland  N/A
    Ram sizes options  1½, 1¼, and 1¾ in., blind
    Ram screw packing ring  HSN (HNBR)
    Side outlet connections  R24 stud and 2-in. NPT
    Height  17 or 19 in.
    Weight  665 or 690 lb