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Our subsurface sucker rod pumps are meticulously crafted to meet the prestigious API 11AX standards and proudly bear the API monogram, along with being ISO 9001 certified. Building upon the advanced technology introduced from the USA in the 1980s, we now offer a diverse range with over 40 distinct models and sizes of sucker rod pumps, accommodating diameters from 28 mm to 108 mm.
Commonly referred to as the insert rod pump, the sucker rod pump represents a quintessential component of conventional rod pumping systems. Ingeniously connected directly to the sucker rod, this pump can be conveniently extracted without affecting the tubing, significantly simplifying well inspections and workover operations. This design innovation not only slashes the time required for pumping tests by half but also dramatically reduces associated costs, making it particularly ideal for deeper wells.
Engineered with a suspension structure, this pump barrel is designed to optimize load-bearing capabilities, ensuring seamless operation in deep wells. With a remarkable setting depth range of 500-1500 meters, the pump features an innovative gap bridge structure to prevent bending. The barrel is strategically suspended in the outer section, effectively shielding it from pressure and minimizing the risk of bending. The minimized space between the plunger and the barrel significantly curtails eccentric wear, thereby extending the pump's service life and ensuring impeccable efficiency. By maintaining a negligible eccentric distance ε=0, the pump minimizes loss, making it perfect for deep wells where additional tail pipes are essential.
| Specification | Nominal Pump Bore (in) | Plunger Length(ft) | Max.O.D.(mm) | Rod(in) | Tubing(in) | Pump Constant (m3/d) | Stroke (m) |
| 20-112RHBC | 1.12 | 4~6 | 46.7 | 3/4 | 2 3/8 | 0.92 | ≤7.5 |
| 20-112RHBM | 44.7 | ||||||
| 20-125RHBC | 1.25 | 47.5 | 3/4 | 2 3/8 | 1.14 | ||
| 20-125RHBM | 44.7 | ||||||
| 25-150RHBC | 1.5 | 59.5 | 3/4 | 2 7/8 | 1.64 | ||
| 25-150RHBM | 55.6 | ||||||
| 25-175RHBC | 1.75 | 59.5 | 3/4 | 2 7/8 | 2.24 | ||
| 25-175RHBM | 55.6 | ||||||
| 30-225RHBC | 2.25 | 72.1 | 3/4 | 3 1/2 | 3.69 | ||
| 30-225RHBM | 71.7 |
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