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Rod Lock


The Dover Artificial Lift Rod Lock® composite pumping tee allows for safe and secure surface equipment servicing without a workover rig. A combination flow tee end and BOP, the Rod Lock clamps onto the polished rod and prevents it from moving—without the need for a winch line.

The Rod Lock suspends the polished rod and complete rod string while safely isolating tubing pressure in the well. As a result, stuffing box service, belt replacement, drive removal and stroke length changes are more simple and safe.

The system is rated at 25,000 pounds of polished rod weight, based on 800 ft-lb torque on clamp bolts, and the proof load is 40,000 pounds without slipping. The system’s BOP seals are rated at 3,000 psi.

Available in configurations including single ram, dual ram and coiled tubing side entry, the Rod Lock provides several operational benefits:

  • Reduced lifecycle costs. A technician can service a top-mounted stuffing box, without the need for a crane truck or a rig.
  • Enhanced safety. The Rod Lock avoids the need for someone to work under a suspended drive head to install or remove a hinged polished rod clamp. It also eliminates the need to suspend a PC drive on the winch line while holding the polished rod weight on the draw works line.
  • Minimal environmental impact. The Rod Lock allows for the servicing of a stuffing box or drive head on a live well, without gas or liquid leakage.

Contact Dover Artificial Lift to discuss how the Rod Lock can reduce your operating costs while enhancing safety and improving your environmental footprint.

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