1. RWA insert rod pump's unique leather bowl support joint is fixed to the oil pipe. In case of failure, only the pumping rod and column can be brought out to bring out the whole pump, greatly simplifying maintenance operations. 2. The pump barrel of RWA insert rod pump adopts electroplating/nitriding treatment, the plunger adopts spraying/electroplating process, and the ball seat uses stainless steel/cemented carbide and other materials, which significantly improves the wear resistance and corrosion resistance of the core accessories. 3. The plunger assembly of RWA insert rod pump pumps oil with the movement of the sucker rod, forming an efficient working pair with the fixed pump cylinder, with a simple and reliable structure and high operating efficiency.
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