The Triple-Acting Tubing Pump is a high-efficiency downhole pump designed for oil wells requiring stable and continuous fluid production.
Unlike conventional pumps, it performs three suction and discharge cycles within a single reciprocating stroke, significantly improving volumetric efficiency and production output.
High-production oil wells.
Deep wells with large fluid displacement.
Wells requiring stable long-term operation.

High-production wells often face unstable flow, efficiency loss, and increased energy consumption when using conventional pumps.
The triple-acting design divides the pump into three sealed chambers, each performing suction and discharge functions independently.
Continuous fluid movement.
Reduced pulsation.
Improved production efficiency and stability.
Pump | Length of plunger (m ) | Length of barrel ( m ) | Range of stroke (m) | Size of connecting tubing ( in ) | Size of connecting tubing ( in ) | Size of connecting sucker rod | constant of triple acting tandem sucker rod pump | Max outside diameter | ||
57 | Upper | Lower | Upper | Lower | 2.1~3.6 | 3 TBG | CYG19 | 3 TBG | CYG19 | 114 |
0.9 | 0.9 | 3.7~5.2 | 3.3~4.8 | |||||||
The triple-acting oil pump generates three independent suction and discharge cycles within a single stroke through the synchronized reciprocating motion of three plungers.
The three plungers sequentially execute the suction and discharge actions;
This achieves continuous fluid output;
It minimizes shock and flow fluctuations;
And it increases the effective fluid displacement per stroke.
This structural design significantly enhances the pump's overall operational efficiency and stability.
15–30% increase in pumping efficiency (compared to traditional single-acting oil pumps).
Reduced flow fluctuation and enhanced production stability.
Minimized ineffective strokes and improved energy utilization efficiency.
Suitable for continuous production in high-yield and medium-to-deep wells.
Extended equipment service life and reduced maintenance frequency.
High-production oil wells.
Continuous oil extraction operations in medium-to-deep wells.
Mature oilfields with stringent requirements for pumping efficiency.
Production environments require precise control over discharge rates.
Oilfields requiring long-duration, continuous operation.
Q1: Is this pump suitable for deep wells?
It is suitable for medium-to-deep wells and high-production oil wells.
Q2: What are its advantages compared to traditional oil pumps?
It primarily enhances pumping efficiency and stability, while reducing flow fluctuations.
Q3: Is it suitable for high-production oil wells?
Yes, it is suitable; it demonstrates particularly stable performance under continuous high-production conditions.
Founded over 20 years ago, DS Rod Pump (Dongsheng Oilfield) has established itself as a premier leader in the design and manufacturing of subsurface oil well pumps. Operating from a state-of-the-art 20,000-square-meter facility, we combine decades of field experience with advanced manufacturing to support the world's most demanding oilfield operations.
Scale & Production Capacity
With a dedicated team of 150+ skilled professionals, we maintain a high production intensity, delivering up to 3,000 sets of rod pumps per month. Our annual output value exceeds RMB 50 million, reflecting our stability and large-scale supply chain capability as a top-tier manufacturer.
"At DongSheng, we understand that subsurface pump failure translates directly into costly downtime and lost production. That’s why every Forced Opening Valve Insert Pump is manufactured to the strictest API 11AX and ISO 9001 standards.
To ensure flawless performance in your most challenging high-viscosity and gassy wells, each unit undergoes a comprehensive 100% vacuum testing and pressure integrity check before leaving our facility.


SLB (Schlumberger)
Weatherford
Sinopec (China Petroleum & Chemical Corporation)
CNPC (China National Petroleum Corporation)
ZPEC (Zhongman Petroleum and Natural Gas Group)
CSSC (China State Shipbuilding Corporation)
