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CIRCULATING SUB

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CIRCULATING SUB

Circulating head is a crossover sub installed on the top of drill pipe, It is connected with circulating system through union for circulating drilling fluid.

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Circulating head is a crossover sub installed on the top of drill pipe, It is connected with circulating system through union for circulating drilling fluid. The sub has always 2″LP pin connection up, connecting circulating system; and drill pipe pin down , connecting drill pipe. Union is to be ready by user.

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