The dependability and design excellence of Hercules® casing and tubing heads is unmatched in the industry. A patented slip feature with positive mechanical stop limits slip travel and reduces stress in the wellhead body. An advanced top metal ring design reduces the gap between the top metal ring halves, preventing packing extrusion and minimizing water and dirt entrapment. Pressure-assisted contoured packing assures positive pack-off with minimum compression. Slip design allows as much weight as the connection will withstand without crushing the casing ID below API drift diameter.
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Hercules® Stuffing Boxes are recognized for superior quality and design unsurpassed in the industry. Available for both beam pumps and PC pump drive heads, Hercules Stuffing Boxes feature a wide array of materials of construction including ductile iron and No Corrode™ cast stainless steel. Their unique misaligning characteristic reduces the need for exact alignment with the pumping unit.
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Hercules BOP's offer quick and easy operation that saves time and effort on the part of the operator.
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PRODUCT RECALL NOTICE: Hercules Model 150H BOP (Cap Assemblies Only)

The RODEC™ Integral Flow Tee/B.O.P. has a unique positive alignment ram block design that eliminates ram block and polished rod misalignment problems
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The RODEC™ Integral Flow Tee/B.O.P. has a unique positive alignment ram block design that eliminates ram block and polished rod misalignment problems
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Designed for either liquid or gas service
Reduces paraffin by keeping gas in solution
Less free gas and better lubrication at the stuffing box
Increases pump efficiency by keeping bottom hole pressure above the bubble point
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From the largest range of stuffing boxes, to the most complete selection of casing heads and tubing heads, Hercules equipment is known throughout the oil field for its superior quality.
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R&M Energy Systems offers a comprehensive line of polished rod accessories to meet your pumping requirements. Each product is engineered from premium materials of construction and refined through years of applications experience. Hercules® polished rod accessories from R&M Energy Systems - your key to performance in the oilfield!
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StayTite® Swing Joints from R&M Energy Systems provide significant advantages over "elbow style" joints for longer life and trouble-free operation in petroleum and petrochemical storage tanks.
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From the largest range of stuffing boxes, to the most complete selection of casing heads and tubing heads, Hercules equipment is known throughout the oil field for its superior quality.
Learn More >>