... valve, relief valve, motor flat cable, cable guard, power cable, tubing. Surface equipment: CBM dedicated wellhead, cable ... installed at bottom most of tubing stem, the power transmit from motor to centrifugal pump directly,not ... transmitted by rod, so the power efficiency is higher(2)The ESP has long ... Amps are demanded, so it can save 15%-50% power.(8)The down hole sensor is easy to install ...