API certificate beam pumping units ,factory supplier keen price
USD $6,000 - $40,000 /Set
Min.Order:2 Sets
Puyang Zhongshi Group Co., Ltd.
pumping unit
Pumping unit is a kind of drilling equipment, commonly known as "KeTouJi", through the pressure to make the oil out of the well. When on the pumping unit stroke, tubing elastic contraction and go upward , drive the machine broken down oil production unit go upward , impact sliding sleeve produce vibration; when under the pumping unit stroke,oil tubing elastic extension and go downward, drive the machine broken down production go downward and impact vibration generation sliding sleeve; Reverse part of single valve closed, at the same time, variable-diameter piston assembly seal oil set of annular oil way, still make reverse single valve below form high area, this movement produce a reverse within the strata on the impact of the flow channel.
detail pictures
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