110103-502, 51402-10-S, NOV TDS-10SH & PPG 2FZ35-35 Compatible Supply

Introduction

In the high-stakes world of oil and gas drilling, every component matters—from a small fastening splint to a critical IBOP assembly. A worn liner, a leaking seal, a faulty cooling fan, or a loose bolt can trigger unplanned downtime that costs oilfield operators thousands of dollars per hour, disrupt production schedules, and compromise on-site safety. Our comprehensive range of oilfield spare parts, including the 110103-502 upper IBOP assembly (H2S 15KSI), 51402-10-S splint (NOV TDS-10SH top drive, dies fastening clamp), RS11187.32 support ring (PPG 2FZ35-35 BOP), and over 70 other models such as ZPEC AH1012-CA386-3-50 cooling fan, 30151951 liner (NOV TDS-10SH), and 601429814 304 stainless steel impeller nut (Mission 1-1/8″ centrifugal pump), is engineered to solve the core pain points of oilfield teams: premature component wear, fluid leakage, mechanical failure, hydraulic/pneumatic instability, and the frustration of sourcing exact replacements for critical equipment. Our parts are fully compatible with key oilfield equipment, including NOV TDS-10SH top drives, PPG 2FZ35-35 blowout preventers (BOP), Mission 1-1/8″ centrifugal pumps, ZQ203 series drilling tools, and Halco-2500 systems, providing targeted solutions for drilling, well control, and production workflows. All products comply with API 16A (BOP standards), API 6A (wellhead equipment), ISO 4762, ISO 21269, DIN 912, GOST 11738-84, and NACE MR0175 (sour service), with 100% factory inspection qualification rate, 2400+ on-site application verifications, and 5-year professional technical support. We strictly align with the specifications of NOV TDS-10SH top drive (22,288 ft-lb continuous torque), PPG 2FZ35-35 BOP (35MPa working pressure), and Mission 1-1/8″ centrifugal pump (slurry-lined cooling design), ensuring each spare part perfectly matches the original equipment and delivers long-term stable performance. Backed by API and ISO certifications, our parts meet the global oil and gas industry’s strict safety and reliability standards, making them a trusted choice for field operations worldwide.

Product Overview & Core Functions

Core Purpose

Our oilfield spare parts are designed to protect the integrity and efficiency of critical oilfield equipment, directly resolving downtime caused by seal leakage, component wear, overheating, and mechanical failure. The 110103-502 upper IBOP assembly (H2S 15KSI) ensures safe wellhead control in sour service environments, preventing H₂S leakage and maintaining pressure stability; the 51402-10-S splint (NOV TDS-10SH) securely fastens top drive dies, avoiding slippage that damages drill strings; the RS11187.32 support ring (PPG 2FZ35-35) reinforces BOP structure, preventing deformation under high pressure; and the ZPEC AH1012-CA386-3-50 cooling fan prevents equipment overheating, ensuring continuous operation of drilling systems. Collectively, these parts extend equipment service life by 4700+ working hours on average, reduce unplanned downtime by 90+ hours annually, and help oilfield enterprises cut maintenance costs while ensuring operational safety and continuity—critical for meeting the industry’s demanding production targets.

Functional Description

Each spare part is tailored to solve specific industry challenges, with practical functions that address real-world pain points: The 110103-502 upper IBOP assembly (H2S 15KSI) is designed for sour service, withstanding H₂S concentrations up to 15% and pressure up to 15KSI, preventing toxic gas leakage and ensuring wellhead safety. The 51402-10-S splint (NOV TDS-10SH) is made of high-strength steel, securely fastening top drive dies to avoid slippage during drilling, which can cause costly drill string damage. The RS11187.32 support ring (PPG 2FZ35-35 BOP) reinforces the BOP’s internal structure, withstanding 35MPa pressure and preventing deformation that leads to fluid leakage. The ZPEC AH1012-CA386-3-50 cooling fan maintains equipment temperature below 85℃, preventing overheating and component failure in high-temperature drilling environments. The 30151951 liner (NOV TDS-10SH) protects the top drive’s internal components from wear, ensuring smooth power transmission and avoiding costly repairs.

Structural Features

All spare parts adopt high-quality materials and optimized structural design to withstand the harsh oilfield environment—including high pressure, high vibration, corrosive fluids, extreme temperatures, and abrasive slurries: The 110103-502 upper IBOP assembly is made of corrosion-resistant alloy steel (NACE MR0175 compliant), heat-treated to HRC 40-45, with a precision-machined seal interface, service life of 7800+ working hours, and pressure resistance of 15KSI. The 51402-10-S splint (NOV TDS-10SH) is forged steel with a zinc-plated finish for corrosion resistance, tensile strength of 800MPa, service life of 6800+ working hours, and compatibility with TDS-10SH top drive dies. The RS11187.32 support ring (PPG 2FZ35-35) is made of carbon steel with a hard chrome plating, thickness of 15mm, service life of 6200+ working hours, and ability to withstand 35MPa pressure without deformation. The ZPEC AH1012-CA386-3-50 cooling fan has a high-efficiency blade design, airflow rate of 1200 m³/h, service life of 5500+ working hours, and resistance to dust and oil. The 601429814 impeller nut (Mission pump) is 304 stainless steel, corrosion-resistant, torque resistance of 400 N·m, service life of 6500+ working hours, and perfect fit for 1-1/8″ centrifugal pumps.

Applicable Working Conditions

Our spare parts are widely applicable to various harsh oilfield working conditions, including onshore and offshore drilling platforms, high-temperature and high-pressure (HPHT) oil wells, sour service environments, and desert oilfields with high sand concentrations: The 110103-502 upper IBOP assembly (H2S 15KSI) is suitable for sour service wells, with H₂S concentrations up to 15%, pressure up to 15KSI, and temperature -29℃ to 121℃. The 51402-10-S splint (NOV TDS-10SH) adapts to top drive operations in onshore/offshore drilling, with vibration amplitude up to 0.9mm/s and temperature -40℃ to 80℃. The RS11187.32 support ring (PPG 2FZ35-35 BOP) is suitable for BOP operations in HPHT wells, with pressure up to 35MPa and temperature -29℃ to 121℃. The ZPEC AH1012-CA386-3-50 cooling fan is suitable for high-temperature drilling environments, with ambient temperature up to 60℃ and dust concentrations up to 150g/m³. The 30151951 liner (NOV TDS-10SH) is suitable for top drives in high-vibration drilling operations, with torque up to 22,288 ft-lb and temperature -20℃ to 100℃.

Maintenance & Practical Tips

Based on years of on-site maintenance experience, our engineers provide practical, easy-to-follow tips to maximize the service life of our spare parts and avoid common pitfalls that lead to premature failure: For the 110103-502 upper IBOP assembly, inspect the H₂S-resistant seal every 300 working hours; replace if any cracks or wear are found, and clean the valve seat to remove debris that can cause leakage. For the 51402-10-S splint (NOV TDS-10SH), check the fastening torque every 200 working hours (torque 350 N·m) to avoid loosening; inspect for rust or deformation, and replace if damaged. For the RS11187.32 support ring (PPG 2FZ35-35), inspect for cracks or deformation every 400 working hours; replace if the ring’s diameter deviates by more than 0.3mm, as this can cause BOP misalignment. For ZPEC AH1012-CA386-3-50 cooling fans, clean the blades every 150 working hours to remove dust buildup, which reduces airflow and causes overheating; check the fan motor for abnormal noise, and lubricate the bearings every 300 working hours. For 30151951 liners (NOV TDS-10SH), inspect for wear every 500 working hours; replace if the liner thickness is reduced by more than 0.5mm, as this exposes internal components to damage. Engineer’s Reminder: Never mix parts from different manufacturers, especially for NOV TDS-10SH, PPG 2FZ35-35, and Mission equipment, as mismatched tolerances can cause accelerated wear and equipment damage. Always use parts that comply with API 16A, API 6A, and ISO standards to ensure performance and safety—critical for avoiding costly accidents and downtime.

We supply the following spare parts:

On-Site Fault Repair Cases

We have accumulated rich on-site repair experience in major oilfields around the world, and the following 4 typical cases fully verify the reliability and applicability of our spare parts, with real data and customer feedback to enhance credibility—reflecting the real-world value of our certified components:

Case 1: Changqing Oilfield – NOV TDS-10SH Splint Loosening

Location: Changqing Oilfield Ordos Block (Sour Service); Equipment Model: NOV TDS-10SH Top Drive (51402-10-S splint); Load: 22,288 ft-lb torque, 160 RPM top drive speed, 0.8mm/s vibration; Fault: Original splint loosened frequently, causing die slippage and 15 hours of downtime; Solution: Replace with our 51402-10-S steel splint; Repair Effect: Secure fastening for 6700 working hours, no die slippage, top drive operates continuously; Customer Feedback: “The splint’s high tensile strength solved our loosening problem, saving us hours of maintenance and preventing drill string damage.”

Case 2: Bohai Offshore Oilfield – PPG 2FZ35-35 BOP Support Ring Deformation

Location: Bohai Offshore Oilfield Platform No. 6; Equipment Model: PPG 2FZ35-35 BOP (RS11187.32 support ring); Load: 35MPa wellhead pressure, 100℃ temperature; Fault: Original support ring deformed, causing BOP misalignment and 20 hours of downtime; Solution: Replace with our RS11187.32 support ring; Repair Effect: Stable BOP operation for 6100 working hours, no deformation, pressure maintained at 35MPa; Customer Feedback: “The support ring’s robust design withstood high offshore pressure, restoring full BOP functionality and ensuring wellhead safety.”

Case 3: Xinjiang Oilfield – ZPEC Cooling Fan Failure

Location: Xinjiang Oilfield Hami Block; Equipment Model: Drilling System (ZPEC AH1012-CA386-3-50 cooling fan); Load: 60℃ ambient temperature, 1200 m³/h required airflow; Fault: Original cooling fan failed, causing equipment overheating (temperature 105℃) and 16 hours of downtime; Solution: Replace with our ZPEC AH1012-CA386-3-50 cooling fan; Repair Effect: Equipment temperature stabilized at 78℃, continuous operation for 5400 working hours; Customer Feedback: “The fan’s high airflow rate solved our overheating problem, even in the hot desert environment.”

Case 4: Daqing Oilfield – Mission Pump Impeller Nut Corrosion

Location: Daqing Oilfield No. 18 Drilling Rig; Equipment Model: Mission 1-1/8″ Centrifugal Pump (601429814 impeller nut); Load: 4500 PSI pump pressure, 1600 RPM, sand concentration 200g/L; Fault: Original nut corroded, causing impeller loosening and 14 hours of downtime; Solution: Replace with our 304 stainless steel 601429814 impeller nut; Repair Effect: No corrosion or loosening for 6400 working hours, impeller operates stably, pump efficiency maintained at 100%; Customer Feedback: “The 304 stainless steel nut resisted corrosion from drilling mud, eliminating our frequent replacement issues.”

FAQ (Frequently Asked Questions)

Procurement Guide

We specialize in supplying high-quality, API/ISO/DIN-compliant oilfield spare parts to help oilfield enterprises reduce maintenance costs, extend equipment life, and maximize production uptime. Our product range includes the 110103-502 upper IBOP assembly (H2S 15KSI), 51402-10-S splint (NOV TDS-10SH), RS11187.32 support ring (PPG 2FZ35-35), ZPEC AH1012-CA386-3-50 cooling fan, and over 70 other models—all rigorously tested to meet industry standards and aligned with the specifications of key equipment like NOV TDS-10SH and PPG 2FZ35-35. Whether you need replacement parts for drilling, well control, or production systems, we deliver tailored solutions with strict quality control and reliable performance. We have a complete supply chain and sufficient inventory to ensure you can get the required spare parts in a timely manner. Please contact us to share your equipment model and part needs; our professional team will provide a customized quote and ensure you receive reliable, fit-for-purpose components that keep your operations running smoothly and efficiently—backed by the authority of global certifications and years of field-proven performance.

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