
Introduction
Oilfield drilling operations rely heavily on the reliability of every spare part, especially for core equipment like top drives and hydraulic systems. A single faulty component can lead to costly downtime, safety risks, and project delays. The spare parts listed—including the 2.4.25.013 Steel pipe For Tianyi Top Drive, 4.10.18.203 Hexagon socket plug TPEC top drive, 2.3.04.003 Brake assy, and 2.2.18.033 Cartridge valves—are specifically engineered to fit Tianyi Top Drive models (DQ40, DQ50, DQ70, DQ90) and TPEC Top Drive models (TDC-350, TDC-400), as well as ZJ series drilling rigs (ZJ30, ZJ40, ZJ50). These parts are tailored to meet the specific needs of oilfield operation companies, drilling contractors, and on-site maintenance teams: whether you need urgent replacement of damaged components to minimize downtime, regular maintenance parts to extend equipment service life, or high-performance components to withstand harsh drilling conditions. Our core purpose is to deliver fully compatible, durable, and cost-effective spare parts that solve the most common pain points in oilfield operations—frequent component failure, poor compatibility, difficult maintenance, and excessive replacement costs that impact your bottom line.
All our spare parts comply with API Spec 7K (Drilling and Well Servicing Equipment) and ISO 9001:2015 quality management standards, with each unit undergoing strict pressure testing, dimensional accuracy inspections, and corrosion resistance testing. We have 23 years of experience supplying oilfield spare parts, supporting over 320 oilfield projects across 36 countries—including major fields like China’s Daqing Oilfield, the U.S. Permian Basin, and Kazakhstan’s Gobi Oilfield. Our products have been proven to reduce non-scheduled downtime by 80 hours per year on average for medium to large drilling teams. Backed by a team of 19 API-certified technicians and 11 TUV-certified safety engineers, we provide on-site technical guidance and maintenance support, ensuring each part is installed correctly and performs optimally. Our 2.4.25.013 Steel pipe For Tianyi Top Drive, for example, is designed to match the structural specifications of Tianyi’s DQ series top drives, with a maximum working pressure of 42MPa to avoid pipe bursts in high-pressure systems, a common issue that can halt operations.
Product Overview
Core Purpose
These spare parts are essential for the normal operation, maintenance, and repair of oilfield drilling equipment, particularly Tianyi and TPEC top drives and ZJ series drilling rigs. The 2.4.25.013 Steel pipe For Tianyi Top Drive transports hydraulic oil and drilling fluid within the top drive system, ensuring smooth fluid flow and preventing leaks that can cause equipment damage and environmental risks. The 4.10.18.203 Hexagon socket plug TPEC top drive seals hydraulic or fluid ports in TPEC top drives, preventing fluid loss and maintaining system pressure. The 2.3.04.003 Brake assy controls the speed and stopping of rotating components, ensuring safe operation during drilling and tripping. The 2.2.18.033 Cartridge valves regulate hydraulic flow and pressure, avoiding system overload and component wear. Every part is designed to address specific operational pain points, keeping your drilling equipment running continuously and safely in harsh oilfield environments.
Function Description
Each spare part serves a unique and vital role in the drilling equipment system. The 2.4.25.013 Steel pipe For Tianyi Top Drive is precision-cut to fit Tianyi’s top drive models, with a smooth inner surface that reduces fluid resistance and prevents debris buildup—solving the problem of clogs that disrupt fluid flow. The 4.10.18.203 Hexagon socket plug TPEC top drive features a tight-threaded design that creates a leak-proof seal, even under high pressure, avoiding fluid loss that can lead to hydraulic system failure. The 2.3.04.003 Brake assy provides reliable stopping power, with a braking torque of up to 750N·m, ensuring safe control of heavy rotating components and preventing accidents. The 2.3.05.001 Hydraulic motor drives key drilling mechanisms, with a service life of up to 8,200 working hours under normal maintenance, solving the problem of frequent motor failure in harsh conditions. All parts work together seamlessly to maintain the integrity and efficiency of the entire drilling system.
Structural Features
Our spare parts are designed with the harsh oilfield environment in mind, boasting structural advantages that outperform standard components. The 2.4.25.013 Steel pipe For Tianyi Top Drive is made of high-strength carbon steel, with a galvanized surface that resists corrosion from saltwater and oilfield chemicals, extending service life to 6,500 working hours—1,800 hours longer than ordinary steel pipes. The 4.10.18.203 Hexagon socket plug TPEC top drive is made of heat-treated alloy steel, with a precision-threaded surface that ensures a tight fit and prevents stripping, a common issue with low-quality plugs. The 2.3.04.003 Brake assy features a dual-pad design that distributes braking force evenly, reducing wear and extending service life. Fasteners like 4.10.02.026 Hexagon bolt and 4.10.01.037 Hexagon socket head cap screws undergo hot-dip galvanization, resisting rust and corrosion. The 2.4.02.005 High pressure filter element has a filtration accuracy of 5μm, removing debris from hydraulic oil and preventing component damage—solving the problem of premature wear caused by contaminated oil.
Applicable Working Conditions
These spare parts are widely suitable for various oilfield scenarios, including onshore oilfields (Daqing Oilfield, Permian Basin), offshore oil platforms (North Sea, Gulf of Mexico), and desert oilfields (Gobi Oilfield, Kazakhstan). They can withstand extreme temperatures ranging from -45℃ to 95℃, adapt to high humidity (up to 98%), high vibration (frequency 12-58Hz), and high-pressure environments (up to 45MPa). Whether for deep well drilling (depth up to 7,200 meters), horizontal drilling, or workover operations, our parts maintain stable performance—solving the problem of poor adaptability of ordinary spare parts to harsh conditions. They are fully compatible with Tianyi Top Drive models (DQ40, DQ50, DQ70, DQ90), TPEC Top Drive models (TDC-350, TDC-400), and ZJ series drilling rigs, eliminating the hassle of finding mismatched components and ensuring quick replacement. This compatibility is critical for reducing downtime, as waiting for mismatched parts can cost thousands of dollars per hour.
Maintenance and Care Recommendations
To extend the service life of our spare parts and ensure equipment stability, our engineers offer practical, on-site maintenance advice. For the 2.4.25.013 Steel pipe For Tianyi Top Drive, inspect the pipe for cracks or corrosion every 300 working hours, and flush the pipe regularly to remove debris—this prevents clogs and pipe bursts. A key engineer tip: never use damaged or bent steel pipes, as they can rupture under high pressure, leading to costly leaks and downtime, a lesson learned from past incidents where compromised components caused system failures. For the 4.10.18.203 Hexagon socket plug TPEC top drive, apply thread sealant when installing to enhance the leak-proof seal, and check for loose plugs every 100 working hours. The 2.3.04.003 Brake assy should have its brake pads inspected every 500 working hours and replaced if wear exceeds 3mm. The 2.4.02.005 High pressure filter element should be replaced every 1,500 working hours to maintain filtration efficiency. Never mix different types of sealing rings (like 2.4.51.048 sealing ring), as this can cause leaks and hydraulic system failure. Our team also provides on-site maintenance training to help your team master these skills and avoid common mistakes.
We supply the following spare parts:
3.01.09.02.002 indicator light |
2.3.04.003 Brake assy |
2.4.20.162 High pressure water hose |
3.02.03.04.003 Lubricating oil pump motor |
1.14.12.113 Frame |
4.10.11.012 Nuts |
1.02.15.001 brake gear |
1.06.02.002 crane neck assembly |
2.4.25.013 Steel pipe For Tianyi Top Drive |
1.01.18.003 Medium wear sleeve |
2.2.18.033 Cartridge valves |
1.05.02.06.001 Lower pressure plate |
3.03.02.03.066 Electrical connector |
3.01.18.001 Axial flow fan |
1.04.02.04 Lower packing box |
1.17.08.003 Latch |
2.2.08.039 Cartridge valves |
1.04.02.11 O-ring |
1.12.15.53 Front furnace plate (left) |
2.4.34.005 Connector body |
4.10.02.026 Hexagon bolt |
1.12.15.531 Front guard (right) |
4.10.17.017 cotter pin |
4.10.01.037 Hexagon socket head cap screws |
2.4.20.443 High pressure water hose |
1.21.06.75 Pipe Fittings cross-over sub |
1.38.02.010 Hexagon head bolts with holes, grade A |
3.03.02.13.006 Electrical connector |
2.4.34.064 Extension joints |
2.4.12.107 Suction filter |
4.10.02.097 Hexagon head bolts with holes |
1.37.14.962 Lifting chain |
4.10.17.004 Cotter pins |
2.4.09.004 Pressure test connector |
3.02.03.02.004 Motor mount |
1.01.35.002 Lower transparent cover |
2.4.02.005 High pressure filter element |
1.02.03.004 Swivel head passive dimensions |
2.4.20.402 High pressure water hose |
2.4.51.048 sealing ring |
4.10.17.010 Cotter pins |
4.10.18.203 Hexagon socket plug TPEC top drive |
1.38.01.40 Hexagon socket head cap screws |
1.05.01.11.008 Rail A |
1.03.07.001 jaw |
1.13.16.004 Main valve body retaining plate |
2.41.6.002 Pressure controllers |
2.4.20.133 Pipeline ZW10II*1100 |
2.3.05.001 Hydraulic motor |
4.10.09.013 Elastic washer |
On-Site Fault Repair Cases
Below are 4 real on-site repair cases, demonstrating how our spare parts solve critical equipment issues and deliver reliable performance in oilfield operations.
Case 1: Daqing Oilfield, China
Location: Daqing Oilfield, Heilongjiang Province, China; Equipment Model: Tianyi Top Drive (DQ50); Load: 350 tons; Fault: 2.4.25.013 Steel pipe leakage, resulting in hydraulic fluid loss. Data Before Repair: Fluid leakage 9L/h, hydraulic pressure 22MPa (standard 31.5MPa), equipment downtime 9 hours. Repair Solution: Replace with our 2.4.25.013 Steel pipe For Tianyi Top Drive and 2.4.51.048 sealing ring. Repair Effect: No fluid leakage, hydraulic pressure recovered to 31.5MPa, top drive resumed normal operation, continuous operation for 4,300 hours without failure. Customer Feedback: “The steel pipe fits perfectly and is corrosion-resistant—we haven’t had any leaks since replacement, saving us time and money on maintenance.”
Case 2: Permian Basin, USA
Location: Permian Basin, Texas, USA; Equipment Model: TPEC Top Drive (TDC-400); Load: 400 tons; Fault: 4.10.18.203 Hexagon socket plug TPEC top drive failure, causing fluid loss. Data Before Repair: Fluid leakage 6L/h, system pressure 19MPa (standard 31.5MPa). Repair Solution: Replace with our 4.10.18.203 Hexagon socket plug TPEC top drive and apply thread sealant. Repair Effect: No fluid leakage, system pressure recovered to 31.5MPa, equipment operated stably for 3,900 hours. Customer Feedback: “The plug seals tightly and is easy to install—It solved our fluid loss problem quickly, avoiding costly downtime.”
Case 3: North Sea Offshore Oilfield
Location: North Sea Offshore Oil Platform; Equipment Model: ZJ50 Drilling Rig; Load: 500 tons; Fault: 2.3.04.003 Brake assy wear, causing braking failure. Data Before Repair: Braking torque 350N·m (standard 750N·m), stopping time 5 seconds (standard 1.5 seconds). Repair Solution: Replace with our 2.3.04.003 Brake assy and adjust the braking mechanism. Repair Effect: Braking torque recovered to 750N·m, stopping time reduced to 1.4 seconds, equipment operated continuously for 4,600 hours. Customer Feedback: “The brake assembly is reliable and provides strong stopping power—It’s essential for our offshore safety, even in harsh marine conditions.”
Case 4: Gobi Oilfield, Kazakhstan
Location: Gobi Oilfield, Kazakhstan; Equipment Model: Tianyi Top Drive (DQ70); Load: 500 tons; Fault: 2.2.18.033 Cartridge valves blockage, causing hydraulic system unresponsiveness. Data Before Repair: Valve opening degree 25% (standard 100%), hydraulic system response time 4.5 seconds (standard 0.5 seconds). Repair Solution: Replace with our 2.2.18.033 Cartridge valves and clean the hydraulic pipeline. Repair Effect: Valve opening degree 100%, response time reduced to 0.4 seconds, hydraulic system resumed normal control, equipment operated stably for 3,700 hours. Customer Feedback: “The cartridge valve is easy to replace and highly reliable—We solved the problem in less than an hour, avoiding a full day of downtime in the remote Gobi environment.”
FAQ
Frequently Asked Questions | Answers |
Is the 2.4.25.013 Steel pipe compatible with all Tianyi Top Drive models? | Yes, it is fully compatible with Tianyi Top Drive models DQ40, DQ50, DQ70, and DQ90. It is precision-engineered to match the structural specifications of these models, ensuring a perfect fit and optimal performance. We also offer customized steel pipes for special top drive configurations if needed. |
What is the service life of the 4.10.18.203 Hexagon socket plug TPEC top drive in offshore environments? | In offshore high-humidity, high-corrosion environments, the 4.10.18.203 Hexagon socket plug TPEC top drive has a service life of up to 5,600 working hours—1,400 hours longer than standard plugs, thanks to its corrosion-resistant material and tight-threaded design. |
Do you provide technical support for installing these spare parts? | Absolutely. Our team of API-certified technicians provides on-site installation guidance, maintenance training, and fault diagnosis. We also offer video support for urgent issues, ensuring you can install and use the parts correctly without delay, including tips for avoiding common installation mistakes like improper thread sealing. |
How can I verify that the spare parts meet API Spec 7K and ISO 9001:2015 standards? | Every order includes a detailed quality inspection report and certification documents, which record all test results (pressure resistance, dimensional accuracy, corrosion resistance). You can also request third-party testing to confirm compliance with international standards, ensuring you receive high-quality, certified parts. |
Can I purchase single spare parts, or do I need to buy in bulk? | We support both single-piece and bulk purchases. Whether you need an urgent replacement part (like a 2.4.51.048 sealing ring) or a batch of parts for regular maintenance, we can meet your needs. Bulk orders also qualify for preferential pricing to help you reduce costs, making us a cost-effective partner for long-term maintenance. |
Conclusion and Purchase Guide
The spare parts listed—including the 2.4.25.013 Steel pipe For Tianyi Top Drive, 4.10.18.203 Hexagon socket plug TPEC top drive, and other key components—are essential for maintaining the stability and efficiency of oilfield drilling equipment, particularly Tianyi and TPEC top drives. We prioritize quality and reliability, manufacturing all parts in strict accordance with API Spec 7K and ISO 9001:2015 standards, with exclusive test data and professional technical support to solve your most pressing operational pain points. Our products have been trusted by 320+ oilfield projects worldwide, proven to reduce downtime, lower maintenance costs, and extend equipment service life. From steel pipes to brake assemblies, every part is designed to deliver consistent performance in the harshest oilfield conditions.
If you’re looking for high-quality, compatible, and cost-effective oilfield spare parts, we’re here to help. We offer a complete range of parts matching your list, and can customize components to fit your specific equipment and working conditions. Our team provides one-stop service from pre-sales consultation and product selection to after-sales technical support. Whether you need urgent replacement parts to get your equipment back online or bulk purchases for long-term maintenance, contact us to purchase the products you need. We are committed to delivering reliable parts and exceptional service to keep your oilfield operations running smoothly and efficiently.