Why Use The DPC™?

To circulate, fill-up, or take flow back without the DPC:

Rotary Rigs: Use a circulating sub made up to the upper joint and connected to the rig mud system using a 1502 union on each circulating sub. 1. A complete stand of drill pipe can be raised or lowered while circulating. 2. Circulating sub must be made up to every stand if taking flow back.

3. Circulating sub must be made up to every stand if expanding or pumping out of the hole.

4. Drill pipe can be raised and lowered about 2 joints while circulating.