Hercules HP ROTA Stubbie BOP

The ROTA Stubbie design combines a standard dual-pin ram blowout preventer (BOP) with a tubing hanger adapter flange, eliminating several inches of stack height as well as one ring gasket.

Have a question? Contact us.

We supply the tubing hanger in various shapes and sizes to fit your tubing hanger profile.

Features

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

Benefits

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 manufacturer’s 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

Hercules HP ROTA Stubbie BOP Specifications

*BX156 stud down available upon request

Top connection	R27 stud and 2.875-in. EUE box or R35 stud and 3.5-in. EUE box
Bottom connection	R46 stud down and 2.875-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	1.50-, 1.25-, and 1.75-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

Hercules HP ROTA Stubbie BOP Data Sheet
Production Service Hookup Brochure