The API 11AX Rod Pump is a very dependable plunger pump that the company designs and manufactures strictly according to the API 11AX standard; its size, materials, and capabilities are aligned with international oil production systems.
The pump casing is made of a strong alloy with surface hardening methods such as hard chrome plating or nickel-based spray welding, which greatly improve its wear and corrosion resistance properties.
This pump reigns superior in terms of durability and reliability when compared to ordinary pumps, leading to less maintenance and lower operational expenses. Besides, it offers great field interchangeability, which simplifies the maintenance and management of spare parts.
Common Uses: Oil reservoirs located both onshore and offshore; wells with high sand content or very high gas-to-oil ratios; deep and very deep wells; and wells from heavy oil or low-permeability reservoirs.
| Type | Model | Pump diameter (mm) | Plunger length ft (mm) | Barrel length ft (mm) | Connecting tubing thread (in) | Connecting sucker rod thread (in) | Pump constant |
| Mechanical support top fixed thick wall rod pump | 20-125RHAM | 1.25 (31.75) | 2~24(609~7315) Increment per foot | 4~34(1219~10363) Increment per foot | 2 3/8 NU/EU | 3/4 in | 1.14 |
| 25-150RHAM | 1.5 (38.1) | 2 7/8 NU/EU | 3/4 in | 1.642 | |||
| 25-175RHAM | 1.75 (44.45) | 2 7/8 NU/EU | 3/4 in | 2.235 | |||
| 30-225RHAM | 2.25 (57.15) | 3 1/2 NU/EU | 3/4 in | 3.694 | |||
| Mechanical support bottom fixed thick wall rod pump | 20-125RHBM | 1.25 (31.75) | 2 3/8 NU/EU | 3/4 in | 1.14 | ||
| 25-150RHBM | 1.5 (38.1) | 2 7/8 NU/EU | 3/4 in | 1.642 | |||
| 25-175RHBM | 1.75 (44.45) | 2 7/8 NU/EU | 3/4 in | 2.235 | |||
| 30-225RHBM | 2.25 (57.15) | 3 1/2 NU/EU | 3/4 in | 3.694 | |||
| Cup support top fixed thick wall rod pump | 20-125RHAC | 1.25 (31.75) | 2 3/8 NU/EU | 3/4 in | 1.14 | ||
| 25-150RHAC | 1.5 (38.1) | 2 7/8 NU/EU | 3/4 in | 1.642 | |||
| 25-175RHAC | 1.75 (44.45) | 2 7/8 NU/EU | 3/4 in | 2.235 | |||
| 30-225RHAC | 2.25 (57.15) | 3 1/2 NU/EU | 3/4 in | 3.694 | |||
| Cup support bottom fixed thick wall rod pump | 20-125RHBC | 1.25 (31.75) | 2 3/8 NU/EU | 3/4 in | 1.14 | ||
| 25-150RHBC | 1.5 (38.1) | 2 7/8 NU/EU | 3/4 in | 1.642 | |||
| 25-175RHBC | 1.75 (44.45) | 2 7/8 NU/EU | 3/4 in | 2.235 | |||
| 30-225RHBC | 2.25 (57.15) | 3 1/2 NU/EU | 3/4 in | 3.694 |
The pump barrel, plunger, and valve parts are made of high-strength alloys and are surface-hardened by different techniques like hard chrome plating or nickel-based spray welding. These allow them to run long and steady, even in oil wells that have a lot of sand and are very corrosive. As a result, the average life of these pumps is 30% to 50% longer than that of the traditional ones, leading to a notable decrease in how often they have to be stopped for maintenance and repairs.
1. Traditional oil and gas extraction operations, especially those involving deep wells and high-pressure conditions.
2. High-Sand Wells: For the wells that have a high sand content, we supply pump barrels and plungers with special surface hardening treatments that will help to prevent abrasive wear and sticking of the pump effectively.
3. Highly Corrosive Environments (H2S/CO2): To extend the working life of pumps exposed to chemical corrosion, we provide versions made with Monel alloy or stainless steel.
Tieling Dongsheng Petroleum Machinery Co., Ltd. was founded in 2000 and it is situated in Tieling City, Liaoning Province. The firm occupies a facility of more than 20,000 sq.m. and has a solid background of 26 years in the R&D as well as production of petroleum machinery. At present, it employs 96 people of whom 20 are professional engineers and technical staff. The company aims at worldwide distribution of quality oil pumps and other equipment used by oilfields.
Core Certifications: We obtained the American Petroleum Institute (API) 11AX accreditation (Certificate No.: 11AX-0118) and also certified with ISO 14001 Environmental Management System, High-Tech Enterprise certification and Intellectual Property Management System.
Quality Assurance: A comprehensive "Rod Pump Quality Certificate" as well as quality inspection reports may be delivered together with the product. We have a professional physical and chemical laboratory which is well capable of not only Rockwell and Vickers hardness testing but also plunger outer diameter measurement, coating thickness measurement, and more than 45,000 other physical and chemical analyses. Besides, video footage of the inspection process can be provided to clients upon their request.
Our factory is capable of producing 20,000 units (or sets) of petroleum machinery equipment annually, and our extensive customization capabilities allow us to offer OEM/ODM services.
Precision Equipment: CNC lathes, electroplating production lines, long-plunger spray-welding machines, hydraulic straightening machines, honing machines, cylindrical grinding machines, and a specialized tubular processing workshop are among our high-tech equipment.
Technical Advantages: We provide specialized plunger pump solutions for corrosive oil wells and high-precision techniques for manufacturing pump barrels.
Our products have been used extensively in several major domestic and international energy projects, which is why we enjoy a good reputation in the industry:
International Cooperation: We have long-term partnerships with internationally recognized oilfield service companies such as SLB (Schlumberger) and Weatherford, supplying them with customized rod pump solutions. Our products are also exported to the United States, Canada, Romania, India, and Indonesia.
Domestic Market: Among our clients are the main domestic energy companies such as CNPC, Sinopec, ZPEC, and CSSC. We provide our products and services to the oilfields in Liaohe, Daqing, Changqing, and Shengli.
Packaging Standards: For equipment packaging, we use export-grade, heavily reinforced wooden crates to keep the items safe and intact even after long-distance sea and land transport.
Lead Time: The regular time for making and delivering an order is 8–10 weeks.
Shipping Methods: In addition to sea shipping, we are capable of land and combined multimodal transport, covering all the main global ports.
Warranty Commitment: We give our products a quality warranty for a standard period (exact details are decided according to product type). Besides defects, our after-sales technical support can also be relied on for any needs.
Sample Service: If you need samples for testing and evaluation, we can send them to you (you need to pay for the shipping costs).
