Puyang Zhongshi Group produce the oil downhole pump designed for resistant extreme corrosion for salt water, H2S and CO2 according to NACE standard MR-01-76.
The pump barrel is chrome plated on 4/6 chrome steel, can realize the capacity of resistance for extreme corrosion and abrasion. Or use chrome plated brass material pump. The plunger material is spray metal with monel alloy ends. The material of valve rod and fittings is stainless steel.
Puyang Zhongshi Group produce the oil downhole pumps-sucker rod pump and tubing pump for normal oil well and extreme corrosive oil well. Manufacture all sucker rod pumps and tubing pumps covered by API Spec 11AX, including all barrel and plunger materials and surface finishes.
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