Our company's central exhaust double plunger stainless steel downhole pump has an oil inlet and exhaust groove in the middle of the pump barrel. The groove has the function of oil inlet and exhaust, which can greatly improve the filling coefficient of the pump and prevent gas lock. When using this plunger oil well pumps for double-seal rod pump, the well can be equipped with no oil drainer, and the pipe string can be left unchanged for steam injection thermal recovery. Therefore, this double plunger injection production oil well pump is suitable for gas wells or heavy oil wells. The structural design of our double plunger valve pump has anti-sand and anti-gas lock performance. The double plunger valve pump with medium exhaust can effectively cope with the mining needs under complex working conditions through unique structural optimization.
| Pump bore (mm) | Length of plunger (m) | Length of barrel (m) | Range of stroke (m) | Size of connecting tubing ( in ) | Pump constant | Size of connecting sucker rod |
| 44 | 1.2+1.2 | 5.4~8.4 | 1.5~3.0 | 2 7/8 TBG | 2.23 | CYG19 |
| 57 | 3.69 | CYG19 | ||||
| 70 | 5.52 | CYG22 |
Our double plunger valve pump is a pump with anti-sand and anti-gas lock functions. The plunger of our double plunger valve pump adopts a separate design, and the pump barrel adopts a three-stage variable diameter series design, which can reduce the risk of solid particles entering the gap between the pump barrel and the plunger, and can achieve the purpose of scraping the inner wall of the pump barrel and self-cleaning of the plunger surface during operation; the strong opening and closing valve design of our stainless steel downhole pump can effectively reduce the downward load in viscous media, and also has the function of anti-gas lock.
1. In the face of oil wells with high oil and gas content, the double plunger stainless steel downhole pump can effectively separate oil and gas through special design to reduce the impact of gas on pump efficiency.
2. The double-piston stainless steel downhole pump with central exhaust is suitable for oil wells that produce high-viscosity crude oil, and plunger oil well pumps for double-seal rod pump can effectively deal with the problem of flow resistance caused by the viscosity of crude oil.
3. In oil wells prone to gas lock, the design of the double-piston anti-gas stainless steel downhole pump can effectively prevent gas from occupying the pump chamber and maintain the normal operation of the pump.
Dongsheng came into being in 2000, and from that time up to the present, Dongsheng has been 26 years deeply engaged in the manufacture of petroleum machinery and through this time they have developed mature production processes and broad industry knowledge. The firm has earned the ISO 9001 Quality Management System certificate and has set up a thorough quality trackability system that covers the whole product life cycle, starting from raw materials up to the delivery of the final products.
Modern Production Base: The company is located in a site covering more than 20,000 square meters with industrial-standard facilities that can house large-scale manufacturing operations.
High-Proportion Technical Team: We now have a total of 96 working staff, among whom 20 are engineers and highly specialized technical personnel. In terms of percentage, technical professionals make up more than 20% of our employees, hence we have sufficient technical support for all our endeavors - from product development to tailor-made manufacturing.
Our large-scale manufacturing facilities are equipped with the capability to produce more than 20,000 units of equipment each year, which means we can confidently meet very large procurement orders. We also provide a complete range of customization services to support our clients' specific needs, which include producing unique designs and products.
Lead time for delivery is tightly monitored and goods are dispatched within 8-10 weeks. We pack the products in sturdy wooden crates which provide protection during the transportation.
Main Supplier for Domestic Oilfields: Our products have been highly indispensable to major domestic energy hubs such as the Liaohe, Daqing, Changqing, and Shengli oilfields.
Export Network Globally: Our business has extended to a variety of countries and regions such as the United States, Canada, Romania, India, and Indonesia, which is a clear indicator of our demonstrated ability to handle and provide services to overseas orders.
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