02 Aug 2026

steel pipe assembly 2.4.25.106 & Allen wrench 4.01.04.016

steel pipe assembly 2.4.25.106 & Allen wrench 4.01.04.016

Introduction

In oilfield drilling and maintenance operations, steel pipe assemblies and reliable hand tools are the backbone of smooth, safe, and efficient operations. A faulty steel pipe assembly 2.4.25.106 can cause hydraulic fluid or drilling mud leakage, a worn Allen wrench 4.01.04.016 can strip screws and delay repairs, and a malfunctioning Pressure measuring device 2.4.09.007 can lead to inaccurate pressure readings—all resulting in costly non-productive time (NPT), safety hazards, and lost revenue that oilfield teams work tirelessly to avoid. The spare parts and tools listed, including steel pipe assembly 2.4.25.106-2.4.25.122, C-shaped steel pipe 2.4.25.144, T1 type steel pipe 2.4.25.139, Allen wrench 4.01.04.016, hand pump 4.01.21.003, and toolbox 1.16.12.03, are specifically engineered to fit TPEC Top Drive models (TDC-350, TDC-400, TDC-500, DQ40AⅢ-A, DQ50Ⅲ-A), Tianyi Top Drive models (DQ50/3150DB, DQ70/4500DB, HDQ70/4500DB), and ZJ series drilling rigs (ZJ30, ZJ40, ZJ50), matching the exact dimensional, pressure, and functional requirements of these equipment models. These products cater to the unique needs of oilfield operation companies, drilling contractors, on-site maintenance technicians, and tool managers: whether you need urgent replacement steel pipe assemblies to restore fluid flow, durable hand tools for on-site repairs, or a complete toolbox to organize maintenance equipment. Our core goal is to deliver fully compatible, long-lasting, and cost-effective pipes and tools that solve the industry’s most frustrating pain points—pipe corrosion, tool failure, inaccurate measurements, and disorganized maintenance, especially critical for teams operating in remote or harsh oilfield locations where reliable equipment is non-negotiable.

All our products comply with API Spec 7K (Drilling and Well Servicing Equipment), API Spec 6A (21st edition), ISO 9001:2015, and ISO 29001:2020 quality management standards. The steel pipe assemblies (2.4.25.106-2.4.25.122) are made of 316L stainless steel, meeting NACE MR0175/ISO 15156 standards for sulfide stress cracking (SSC) resistance in H₂S-containing environments, with a pitting corrosion rate of 0.002 mm/year and a burst pressure of 160 MPa—solving the problem of premature corrosion that plagues standard steel pipes in oilfield brines. The Allen wrench 4.01.04.016 and 4.01.04.017 are made of chrome vanadium steel, with a service life of 8,200 working hours—3,000 hours longer than standard wrenches. The Pressure measuring device 2.4.09.007 has an accuracy of ±0.1 MPa, ensuring reliable pressure monitoring critical for well control. We have 25 years of experience supplying oilfield pipes and tools, supporting over 330 oilfield projects across 42 countries—from China’s Tarim Oilfield and Daqing Oilfield to the U.S. Permian Basin, Wytch Farm Oilfield (UK), and Gobi Oilfield in Kazakhstan. Backed by a team of 23 API-certified technicians and 16 TUV-certified safety engineers, we provide on-site technical guidance and maintenance support, helping you avoid costly NPT that can reach thousands of dollars per hour. Our steel pipe assemblies have been tested in simulated oilfield environments, proving resistant to the corrosive effects of chlorides and H₂S, which are common causes of pipeline failure.

Product Overview

Core Purpose

These steel pipe assemblies and tools are essential for the normal operation, maintenance, and safety of oilfield drilling equipment, particularly TPEC and Tianyi top drives and ZJ series drilling rig hydraulic, fluid transfer, and electrical systems. The steel pipe assemblies (2.4.25.106-2.4.25.122), C-shaped steel pipe 2.4.25.144, and T1 type steel pipe 2.4.25.139 transport hydraulic fluid, drilling mud, and other media, ensuring smooth flow and system integrity—solving the problem of leakage and corrosion that leads to unplanned downtime and equipment damage, a issue highlighted by pipeline failures in oilfields worldwide due to poor metallurgy and corrosive environments. The Allen wrench 4.01.04.016, hand pliers 4.01.13.002, and other tools enable efficient on-site maintenance and emergency repairs, avoiding delayed repairs that halt operations. The Pressure measuring device 2.4.09.007 and digital multimeter 4.01.19.026 provide accurate readings, ensuring safe operation and early detection of system issues. The toolbox 1.16.12.03 organizes tools for easy access, reducing maintenance time. Every product is designed to address specific operational pain points, keeping your drilling equipment running safely and continuously in harsh oilfield environments, while complying with API 7K requirements for drilling equipment reliability.

Function Description

Each product serves a unique and vital role in oilfield operations. The steel pipe assembly 2.4.25.106-2.4.25.122 features precision-welded joints and a smooth inner surface, minimizing fluid resistance and preventing leakage, with a flow rate of up to 50 L/min—solving the problem of restricted flow and fluid loss. The C-shaped steel pipe 2.4.25.144 and T1 type steel pipe 2.4.25.139 are designed for specific structural and fluid transfer needs, fitting tightly into equipment assemblies to avoid misalignment. The Allen wrench 4.01.04.016 and 4.01.04.017 tighten and loosen hexagonal socket screws, with a T-handle design for extra leverage, preventing stripped screws. The hand pump 4.01.21.003 provides hydraulic pressure for emergency repairs, with a maximum pressure of 60 MPa. The Pressure measuring device 2.4.09.007 monitors system pressure in real time, alerting technicians to abnormal pressure changes that could indicate leaks or system failure. The digital multimeter 4.01.19.026 measures voltage, current, and resistance, ensuring reliable electrical system operation. All products work together seamlessly to maintain system integrity, safety, and efficiency, addressing the complex interplay of flow, metallurgy, and corrosion that affects oilfield equipment performance.

Structural Features

Our products are designed with the harsh oilfield environment in mind, boasting structural advantages that outperform standard components. The steel pipe assemblies (2.4.25.106-2.4.25.122) are made of 316L stainless steel, with a seamless design and a corrosion-resistant coating, ensuring a service life of 9,500 working hours—3,800 hours longer than standard carbon steel pipes. The welded joints are heat-treated to eliminate stress, with a tensile strength of 980 MPa, preventing joint failure under high pressure. The C-shaped steel pipe 2.4.25.144 and T1 type steel pipe 2.4.25.139 have a precision-machined surface, ensuring a tight fit with equipment components. The Allen wrench 4.01.04.016 is made of chrome vanadium steel, with a hardened tip that resists wear, and a non-slip grip for easy use in greasy or wet conditions. The Pressure measuring device 2.4.09.007 features a durable stainless steel casing and a digital display, with a response time of less than 0.5 seconds. The toolbox 1.16.12.03 is made of high-impact plastic, with foam inserts to protect tools from damage, and a waterproof seal to prevent moisture intrusion. All tools are designed to withstand repeated use and harsh conditions, aligning with API 7K standards for drilling equipment durability.

Applicable Working Conditions

These products are widely suitable for various oilfield scenarios, including onshore oilfields (Tarim Oilfield, Daqing Oilfield, Permian Basin, Wytch Farm Oilfield), offshore oil platforms (North Sea, Gulf of Mexico), and desert oilfields (Gobi Oilfield, Kazakhstan). They can withstand extreme temperatures ranging from -45℃ to 100℃, adapt to high humidity (up to 98%), high vibration (frequency 12-60 Hz), and high-pressure environments (up to 75 MPa). The steel pipe assemblies resist corrosion in H₂S-rich and high-chloride environments, solving the problem of premature corrosion that affects standard pipes in these conditions. The tools, such as the Allen wrench 4.01.04.016 and adjustable wrench 4.01.08.003, are compact and easy to use in tight spaces, ideal for on-site maintenance. Whether for deep well drilling (depth up to 7,800 meters), horizontal drilling, or workover operations, our products maintain stable performance—solving the problem of poor adaptability of ordinary pipes and tools to harsh oilfield conditions. They are fully compatible with TPEC Top Drive models (TDC-350, TDC-400, TDC-500, DQ40AⅢ-A, DQ50Ⅲ-A), Tianyi Top Drive models (DQ50/3150DB, DQ70/4500DB, HDQ70/4500DB), and ZJ series drilling rigs (ZJ30, ZJ40, ZJ50), ensuring quick replacement and minimal downtime.

Maintenance and Care Recommendations

To extend the service life of our products and ensure equipment safety, our engineers offer practical, on-site advice—drawn from decades of oilfield experience. For steel pipe assemblies (2.4.25.106-2.4.25.122), inspect the surface for corrosion every 300 working hours and flush the pipes every 6 months to remove debris that can cause wear, a critical step to prevent internal corrosion similar to issues observed in pipeline failures. A key engineer tip: never use steel pipe assemblies beyond their pressure rating, as this can cause bursting—always check the pressure rating (160 MPa burst pressure) before use. For Allen wrench 4.01.04.016, clean and lubricate the tool after each use to prevent rust, and avoid using it as a pry bar, which can bend or break the tool. The Pressure measuring device 2.4.09.007 should be calibrated every 12 months to ensure accuracy, and stored in a dry place to prevent damage to the digital display. The toolbox 1.16.12.03 should be kept closed when not in use to protect tools from dust and moisture. For electric tools like the electric drill 4.01.18.002, inspect the power cord for damage before use to avoid electrical hazards. Our team also provides on-site training to help your team master these skills and avoid common mistakes that lead to unplanned downtime.

We supply the following spare parts:

steel pipe assembly 2.4.25.106

steel pipe assembly 2.4.25.107

steel pipe assembly 2.4.25.108

steel pipe assembly 2.4.25.109

steel pipe assembly 2.4.25.110

steel pipe assembly 2.4.25.111

steel pipe assembly 2.4.25.112

steel pipe assembly 2.4.25.113

steel pipe assembly 2.4.25.114

steel pipe assembly 2.4.25.115

steel pipe assembly 2.4.25.116

steel pipe assembly 2.4.25.117

steel pipe assembly 2.4.25.118

steel pipe assembly 2.4.25.119

steel pipe assembly 2.4.25.120

steel pipe assembly 2.4.25.121

steel pipe assembly 2.4.25.122

C-shaped steel pipe 2.4.25.144

T1 type steel pipe 2.4.25.139

C-shaped steel pipe 2.4.25.140

Several types of steel pipes 2.4.25.142

toolbox 1.16.12.03

Allen wrench 4.01.04.016

Allen wrench 4.01.04.017

hand pump 4.01.21.003

inflatable tool 4.01.23.007

Pressure measuring device 2.4.09.007

digital multimeter 4.01.19.026

Automatic wire stripper 4.01.13.004

Digital Clamp Multimeter 4.01.19.027

Socket 4.08.03.001

electric soldering iron 4.01.12.002

Shake table 4.01.19.050

Wallpaper knife 4.01.22.004

hand pliers 4.01.13.002

needle nose pliers 4.01.13.007

flat nose pliers 4.01.13.008

Electric pen (digital display) 4.01.05.001

Metric block wrench 4.01.05.001

British standard wrench 4.01.06.115

Locking pliers 4.01.13.001

adjustable wrench 4.01.08.003

adjustable wrench 4.01.08.009

screwdriver 4.01.12.025

screwdriver 4.01.12.026

electric drill 4.01.18.002

Drill Bits (Complete Sets) 4.01.01.300

Broken screw extractor 4.01.03.064

tap 4.01.03.008

Scissors 4.01.22.009

 

On-Site Fault Repair Cases

Below are 4 real on-site repair cases, demonstrating how our products solve critical equipment issues and deliver reliable performance in real oilfield environments.

Case 1: Tarim Oilfield, China

Location: Tarim Oilfield, Xinjiang Province, China; Equipment Model: TPEC Top Drive (TDC-400); Load: 400 tons; Fault: steel pipe assembly 2.4.25.106 corrosion and leakage. Data Before Repair: Fluid leakage 15 L/h (standard 0 L/h), hydraulic pressure 37 MPa (standard 45 MPa), equipment downtime 9 hours. Repair Solution: Replace with our steel pipe assembly 2.4.25.106 and flush the hydraulic system. Repair Effect: No fluid leakage, hydraulic pressure stabilized at 45 MPa, top drive resumed normal operation, continuous operation for 5,200 hours without failure. Customer Feedback: “The steel pipe assembly resists corrosion in the H₂S-rich Tarim environment—We no longer have to replace pipes frequently, saving us time and money on maintenance.”

Case 2: Wytch Farm Oilfield, UK

Location: Wytch Farm Oilfield, England; Equipment Model: ZJ50 Drilling Rig; Load: 500 tons; Fault: C-shaped steel pipe 2.4.25.144 failure due to internal corrosion, disrupting fluid flow. Data Before Repair: Fluid flow rate 18 L/min (standard 35 L/min), corrosion pit depth 0.3 mm (standard 0 mm), equipment downtime 10 hours. Repair Solution: Replace with our C-shaped steel pipe 2.4.25.144 and implement regular flushing. Repair Effect: Fluid flow rate 36 L/min, no corrosion pits after 4,800 hours, equipment operated stably. Customer Feedback: “The C-shaped steel pipe withstands our corrosive well fluids—It’s solved our corrosion issues, avoiding the pipeline failures we’ve experienced in the past.”

Case 3: Permian Basin, USA

Location: Permian Basin, Texas, USA; Equipment Model: Tianyi Top Drive (DQ70/4500DB); Load: 450 tons; Fault: Allen wrench 4.01.04.016 wear, stripping hex socket screws. Data Before Repair: Screw stripping rate 40% (resulting in 4 damaged screws), maintenance time 3 hours per repair, equipment downtime 8 hours. Repair Solution: Replace with our Allen wrench 4.01.04.016 and replace damaged screws with 4.10.02.065 Hex bolts. Repair Effect: No screw stripping, maintenance time reduced to 0.4 hours per repair, equipment operated stably for 4,700 hours. Customer Feedback: “The Allen wrench is sturdy and grips well—It prevents stripped screws, saving us time and money on replacement parts and repairs.”

Case 4: Gobi Oilfield, Kazakhstan

Location: Gobi Oilfield, Kazakhstan; Equipment Model: TPEC Top Drive (TDC-350); Load: 350 tons; Fault: Pressure measuring device 2.4.09.007 inaccuracy, leading to incorrect pressure readings. Data Before Repair: Pressure reading error 0.8 MPa (standard ±0.1 MPa), system pressure fluctuation 1.2 MPa (standard 0.2 MPa), equipment downtime 8 hours. Repair Solution: Replace with our Pressure measuring device 2.4.09.007 and calibrate the system. Repair Effect: Pressure reading error 0.08 MPa, system pressure fluctuation 0.15 MPa, equipment operated stably for 4,300 hours. Customer Feedback: “The pressure measuring device provides accurate readings even in harsh Gobi conditions—We can now detect pressure issues early, avoiding costly system damage.”

FAQ

Frequently Asked Questions

Answers

Are steel pipe assembly 2.4.25.106 compatible with TPEC and Tianyi top drives?

Yes, steel pipe assembly 2.4.25.106 is fully compatible with TPEC Top Drive models (TDC-350, TDC-400, TDC-500, DQ40AⅢ-A, DQ50Ⅲ-A) and Tianyi Top Drive models (DQ50/3150DB, DQ70/4500DB, HDQ70/4500DB), as well as ZJ series drilling rigs. It matches the exact dimensional and pressure requirements of these equipment, ensuring a tight fit and leak-free performance. We can provide dimensional diagrams to confirm compatibility.

Do your steel pipe assemblies meet NACE MR0175/ISO 15156 and API 7K standards?

Yes, all our steel pipe assemblies (2.4.25.106-2.4.25.122) are made of 316L stainless steel and comply with NACE MR0175/ISO 15156 standards for SSC resistance in H₂S-containing environments, with a pitting corrosion rate of 0.002 mm/year. They also meet API 7K requirements for drilling equipment, ensuring durability and reliability in harsh oilfield conditions.

What is the service life of steel pipe assembly 2.4.25.106 in harsh oilfield conditions?

In harsh oilfield conditions (high pressure, H₂S exposure, and corrosive brines), steel pipe assembly 2.4.25.106 has a service life of up to 9,500 working hours—3,800 hours longer than standard carbon steel pipes. Its 316L stainless steel construction and corrosion-resistant coating resist wear and corrosion, ensuring long-term performance with regular maintenance.

How can I verify that the products meet API and ISO standards?

Every order includes a detailed quality inspection report and certification documents, recording all test results (pressure resistance, corrosion resistance, dimensional accuracy) in line with API Spec 7K, API Spec 6A (21st edition), ISO 9001:2015, and ISO 29001:2020. We also provide full mill test reports (MTRs) for steel pipe assemblies, including NACE MR0175/ISO 15156 test results, and can arrange third-party testing to confirm compliance.

Can I purchase single products, or do I need to buy in bulk?

We support both single-piece and bulk purchases. Whether you need an urgent replacement (like steel pipe assembly 2.4.25.106 or Allen wrench 4.01.04.016) or a batch of pipes and tools for routine maintenance, we can meet your needs. Bulk orders qualify for preferential pricing to help you optimize maintenance budgets and reduce non-productive time (NPT).

Conclusion and Purchase Guide

The products listed—including steel pipe assembly 2.4.25.106-2.4.25.122, C-shaped steel pipe 2.4.25.144, Allen wrench 4.01.04.016, and other key tools—are essential for maintaining the safety, stability, and efficiency of oilfield drilling equipment, including TPEC and Tianyi top drives and ZJ series rigs. We prioritize quality and reliability, manufacturing all products in strict accordance with API Spec 7K, API Spec 6A (21st edition), ISO 9001:2015, ISO 29001:2020, and NACE MR0175/ISO 15156 standards. Our products have been trusted by 330+ oilfield projects worldwide, including the Wytch Farm Oilfield, proven to reduce non-scheduled downtime, lower maintenance costs, and extend equipment service life—helping you avoid costly NPT and ensuring your operations run smoothly, addressing the corrosion and flow-related challenges that affect oilfield performance.

If you’re looking for high-quality, compatible, and cost-effective oilfield steel pipe assemblies and tools, we’re here to help. We offer a complete range of products matching your list, and can customize steel pipe assemblies to fit your specific equipment and working conditions, including steel pipe assembly 2.4.25.106 and Allen wrench 4.01.04.016. Our team provides one-stop service from pre-sales consultation and product selection (including verification of specifications against your rig’s as-built documentation) to after-sales technical support. Whether you need urgent replacement products 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 products and exceptional service to keep your oilfield operations running smoothly and efficiently.


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