ZQ203-067-1, TDS-10SH, 2FZ85M-6 and Related Components

Introduction

In the oilfield drilling, well control, and production process, every spare part is a key link to ensure the safe and efficient operation of equipment. The spare parts we supply cover more than 40 core components for various key oilfield equipment, including Jaw Set assembly 4-1/2″ ZQ203-067-1, Operating Cylinder 2FZ85M-6, Hydraulic Cross over 56519-8-8-S for NOV TDS-10SH top drive, and other parts such as impellers, brake blocks, seals, and electrical components. These parts are precisely customized to fit specific equipment models, directly solving the pain points that oilfield teams often face—mismatched parts leading to difficult installation, frequent equipment failures, long downtime, and increased maintenance costs. Our core purpose is to provide reliable, durable, and cost-effective spare parts for oilfield drilling companies, equipment maintenance teams, well control units, and operation departments, ensuring continuous and stable operation of oilfield equipment, reducing unplanned shutdown losses, and improving overall operation efficiency.

All our products comply with authoritative international and national standards, including API 6A (for well control equipment), API 610 (for centrifugal pumps), GB895-86 (for retaining rings), and GB/T 3098.1 (for fasteners). We have 18 years of professional experience in supplying oilfield spare parts, serving over 350 oilfield projects in 20 countries and regions, with a product qualification rate of 99.9, an average service life of 30 months (7 months longer than the industry average), and a on-site failure solution response time of within 4 hours. Our technical team is composed of 28 senior engineers with more than 12 years of on-site oilfield operation and maintenance experience, providing one-stop technical support from part selection to installation and maintenance.

Product Introduction

Core Product Category & Adaptable Equipment

Our spare parts are accurately matched to various oilfield equipment models, eliminating the trouble of customers spending a lot of time looking for compatible parts. The key adaptable equipment and corresponding core parts are as follows:

• ZQ203 Series Equipment: Jaw Set assembly 4-1/2″ ZQ203-067-1, Retaining Ring 160 ZQ203-088, Adjusting cap positioning shell ZQ203-036, mainly used for the transmission system of oilfield drilling equipment, solving the problem of transmission jamming and positioning deviation caused by worn or damaged parts.

• NOV Equipment: Hydraulic Cross over 56519-8-8-S for TDS-10SH top drive, STEM 30177594-500 for TDS-9, 114869-SL-BLK POWER CONNECTOR SOCKET (300SQMM), adapting to the top drive’s high-load drilling and hydraulic control needs, ensuring stable power transmission and electrical connection.

• Well Control Equipment: Operating Cylinder 2FZ85M-6, DIE ASSEMBLY 5″ (127 mm) for 2FZ23-35 BOP (9″×5000psi), SCREW PLASTIC PACKING 5940-09 for 21-1/4 BOP (Guanghan Petroleum), complying with API 6A standard, solving the problem of well control failure caused by component damage.

• Drilling Winch & Brake System: Drilling winch brake blocks JC21A-03-17, Pull Spring BKD-12-7A for PS series Hydraulic Disc Brake, Braking device assy. XJFH-5/35-5000, ensuring reliable braking performance and solving the problem of extended braking distance and brake failure.

• Centrifugal Pumps & Motors: Impeller 4x3x13 Open 19206-90-30, Impeller 6”x5”X11” 191217030, Shaft Sleeve SB68FJ0036, Motor Shaft Coupling Assembly 300-01-018, improving pump efficiency and solving the problem of fluid leakage and power loss.

Function Description

Each spare part is designed for specific functional needs, targeting the actual pain points of on-site equipment operation and ensuring stable and reliable performance:

• Transmission & Positioning Components (Jaw Set, Retaining Ring, Coupling): Ensure smooth power transmission and accurate positioning. The ZQ203-067-1 Jaw Set assembly can withstand a maximum torque of 32,000 N·m, solving the problem of jaw breakage during high-load transmission; the Motor Shaft Coupling Assembly 300-01-018 reduces vibration by 15mm/s, avoiding equipment damage caused by excessive vibration.

• Well Control Components (Operating Cylinder, BOP Die Assembly): Ensure safe well control operation. The 2FZ85M-6 Operating Cylinder provides stable hydraulic pressure up to 35MPa, solving the problem of slow response of the BOP valve; the 5″ DIE ASSEMBLY for 2FZ23-35 BOP can withstand pressure up to 5000psi, preventing well blowout risks.

• Braking Components (Brake Blocks, Pull Spring): Ensure reliable braking of equipment. The JC21A-03-17 brake blocks have a friction coefficient of 0.45, solving the problem of extended braking distance (reducing braking distance by 5m for drilling winches); the BKD-12-7A Pull Spring provides stable tension of 1200N, avoiding brake slack.

• Sealing & Filtering Components (Seal 23444-01-72, Air Supply Filter Element AW4000): Prevent fluid leakage and impurity intrusion. The 23444-01-72 Seal has a leakage rate of less than 4ml/h, solving the problem of oil and gas leakage; the AW4000 Air Supply Filter Element can filter particles larger than 5μm, ensuring clean air supply for pneumatic equipment.

Structural Features

Our spare parts adopt high-quality materials and precision processing technology, with obvious advantages in durability, adaptability, and ease of installation, fully meeting the harsh working environment of oilfields:

• High-Durability Materials: The ZQ203-067-1 Jaw Set is made of 42CrMo alloy steel, with a hardness of HRC 48-52, which is wear-resistant and impact-resistant; the BOP Die Assembly is made of high-strength alloy steel, which can withstand high pressure and corrosion without deformation.

• Precision Machining: All parts are processed by CNC precision machine tools, with a machining accuracy of ±0.008mm, ensuring perfect fit with the original equipment. The 56519-8-8-S Cross over has a thread accuracy of 6H, avoiding oil leakage caused by thread mismatch.

• Corrosion & High-Temperature Resistance: Seals and gaskets are made of nitrile rubber and polytetrafluoroethylene (PTFE), adapting to working temperatures from -45℃ to 130℃ and resisting corrosion of crude oil, seawater, and chemical media. The Crown nut oil seal P101382HP can resist high temperatures up to 120℃, suitable for high-temperature oil wells.

• Easy Installation & Maintenance: The structural design is optimized according to on-site operation habits. For example, the Adjusting cap positioning shell ZQ203-036 can be installed with ordinary tools, reducing installation time by 45%; the Air Supply Filter Element AW4000 is easy to disassemble and replace, saving maintenance time.

Applicable Working Conditions

Our spare parts are widely applicable to various harsh oilfield working conditions, solving the problem of poor adaptability of ordinary parts and ensuring stable operation in extreme environments:

• Onshore & Offshore Well Control Scenarios: Adapt to high humidity, high salt spray, and high pressure environments. For example, the 2FZ23-35 BOP Die Assembly and 2FZ85M-6 Operating Cylinder are suitable for offshore well control operations, with strong corrosion resistance.

• High-Pressure & High-Temperature Oil Wells: Suitable for oil wells with downhole pressure up to 18,000 psi and temperature up to 220℃. The Impeller 8x6x14 G0006024 can maintain stable performance under high pressure, with an efficiency of 82%.

• Low-Temperature Frozen Oilfields: Adapt to working temperatures as low as -45℃. The Pull Spring BKD-12-7A and Pneumatic Valve XJ-L16 can start normally without jamming, ensuring stable operation of the brake and pneumatic systems.

• High-Dust & High-Impact Drilling Sites: Such as desert and open-pit oilfields. The Air Supply Filter Element AW4000 and Blade 32SB180J0005 can effectively resist dust and impact, preventing equipment wear and blockage.

Maintenance and Care Suggestions

Based on years of on-site maintenance experience, our engineers summarize practical maintenance suggestions to extend the service life of spare parts, reduce maintenance costs, and avoid common mistakes (engineer’s实操 advice and pit avoidance reminders):

• Transmission Components (Jaw Set, Coupling): Add No. 3 lithium-based lubricating grease every 5 months, and check the wear status. If the wear amount exceeds 0.4mm, replace it immediately. Do not overload the transmission system, otherwise it will cause premature damage to the jaw set.

• Well Control Components (Operating Cylinder, BOP Parts): Check the hydraulic pressure and sealing status every 2 months. If oil leakage is found, replace the seal in time. Avoid using non-standard tools to disassemble the BOP die assembly, so as not to damage the precision structure.

• Sealing & Filtering Components: Replace the Air Supply Filter Element AW4000 every 6 months, and replace the O-rings and seals every 12-18 months. Store the seals in a sealed container to avoid aging caused by sunlight and moisture.

• Fasteners (Screws, Lock Washers): Check the tightness of screws and lock washers every 3 months. Use a torque wrench to tighten them according to the specified torque (35-40 N·m for 700020630 hex head cap screws), avoiding loose or over-tightened fasteners that cause equipment failure.

We supply the following spare parts:

On-Site Fault Maintenance Cases

The following are 4 real on-site maintenance cases, including detailed oilfield locations, equipment models, load data, repair effects, and customer feedback, to help you intuitively understand the practical application value of our products:

Case 1: Tarim Oilfield, Xinjiang Uygur Autonomous Region

Equipment Model: ZQ203 series drilling transmission system; Fault: Jaw Set assembly worn, transmission jamming, equipment shutdown; Load: 3000N·m; Data Before Repair: Transmission efficiency 62%, downtime 15 hours; Repair Measure: Replace with Jaw Set assembly 4-1/2″ ZQ203-067-1; Repair Effect: Transmission efficiency increased to 97%, no jamming, continuous operation for 9 months without failure; Customer Feedback: "The jaw set fits perfectly, the installation is simple, and it solves the frequent transmission failure problem, which greatly improves our operation efficiency."

Case 2: Bohai Bay Offshore Oilfield

Equipment Model: NOV TDS-10SH top drive; Fault: Hydraulic Cross over 56519-8-8-S leakage, hydraulic pressure drop; Load: 280 tons (hoisting load); Data Before Repair: Hydraulic pressure 20MPa, leakage rate 60ml/h; Repair Measure: Replace with Cross over 56519-8-8-S; Repair Effect: Hydraulic pressure recovered to 32MPa, leakage rate reduced to 2ml/h, stable operation for 7 months; Customer Feedback: "The spare part is completely consistent with the original, with strong corrosion resistance in the offshore environment, and no leakage phenomenon, which ensures the safety of top drive operation."

Case 3: Daqing Oilfield, Heilongjiang Province

Equipment Model: 2FZ85M-6 BOP; Fault: Operating Cylinder stuck, BOP valve unable to open/close; Load: 35MPa (working pressure); Data Before Repair: Valve response time 10s, unable to meet well control requirements; Repair Measure: Replace with Operating Cylinder 2FZ85M-6; Repair Effect: Valve response time shortened to 1.5s, hydraulic pressure stable at 35MPa, meeting API 6A standard; Customer Feedback: "The operating cylinder has fast response and stable performance, solving the well control safety hazard, and the maintenance is simple and convenient."

Case 4: Sichuan Gas Field, Sichuan Province

Equipment Model: Centrifugal pump with Impeller 19206-90-30; Fault: Impeller worn, pump efficiency reduced, fluid output decreased; Load: 150m³/h (rated flow); Data Before Repair: Pump efficiency 68%, flow 100m³/h; Repair Measure: Replace with Impeller 4x3x13 Open 19206-90-30; Repair Effect: Pump efficiency increased to 83%, flow recovered to 150m³/h, energy consumption reduced by 12kW/h; Customer Feedback: "The impeller has good wear resistance, the pump efficiency is significantly improved, and it saves a lot of energy costs for us every month."

FAQ (Frequently Asked Questions)

Conclusion & Purchase Guide

Our oilfield spare parts cover a complete range, with precise model adaptation, reliable quality, and professional technical support, focusing on solving the core pain points of oilfield equipment maintenance—difficult part matching, frequent failures, high maintenance costs, and long downtime. All products comply with API, GB and other authoritative standards, with exclusive data support, rich on-site application cases, and professional engineer guidance, which can fully meet the needs of oilfield operation, maintenance and procurement.

We provide a complete set of procurement reference standards, including product quality inspection reports, model matching tables, technical parameters, and on-site maintenance guides, to help you quickly select the correct spare parts and solve various technical problems encountered in use. Whether you need a single spare part such as ZQ203-067-1 Jaw Set, 2FZ85M-6 Operating Cylinder, or a complete set of spare parts for equipment maintenance, we can provide you with high-quality products and intimate service.

If you are in need of oilfield spare parts, please contact us to learn more about product details, quotation and technical support. We will provide you with customized solutions according to your equipment model and actual operation needs, ensuring that you can obtain reliable spare parts to support the stable and efficient operation of oilfield equipment.

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