The utility model relates to a pump valve of a well drillingmudpump.
本实用新型涉及钻井泥浆泵的泵阀。
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On May 26th BP, the company responsible for the well that Deepwater Horizon had drilled, started to pump heavy drillingmud into the well's blowout preventer, a set of valves on the sea floor.
On May 26th BP started to pump heavy drillingmud into the blowout preventer, the set of valves at the top of the well to which that broken pipe is attached.