China Xq Serial Hydraulic Sucker Rod Elevator Power Tong Rod Tong

Hydraulic controlled safety protection device is applicable to XQ Well Servicing Power Tong, ZQ Pipe Power Tong and TQ Casing Power Tong, using patent technology, to do real-time and reliable protection to the power tong, guarantee the safety of the operators. Flexible shaft controlled safety protection device consists of flexible shaft controlled reversing valve, push and pull flexible shaft and safety door. The flexible shaft controlled reversing valve installed in oil inlet and outlet position. As long as the safety door opens, the power will stop working immediately through the push and pull flexible shaft drive flexible shaft controlled reversing valve; when the safety door is closed , the power tong can work normally, which realizes the linkage protection between the safety door and hydraulic circuit.

Torque control recorder of hydraulic power tongs (abbr. TPC) is a kind of torque signal treatment, control and record system. It may measure, show, record and control any torque in the period of tube makeup to ensure the optimal screw torque and save any chart data of every joint in tightening process in disc for query in the future. 1.2. TCP system is in corollary use with Casing/Tubing Tongs. It may realize automatic controls on screw torque of tube joints and ensure controlling screw torque of tube joint in a range recommended in API Standard. It may avoid thread gluing and tongs teeth damaging any tube because of over torque when tightening any tube joint so as to meet strict standards and requirements for tube down-hole