NOV TDS-10SH & QWS-2500SD: ZQ203, YG225 Series Components

Introduction & Core Purpose Statement

This full range of precision spare parts is specially developed and manufactured for NOV TDS-10SH top drive system, QWS-2500SD mud pump, ZQ203 hydraulic motor, RG Petro-machinery transmission equipment and supporting oilfield drilling rig systems, covering sealing parts, transmission shafts, bearings, hydraulic connectors, electrical components and fasteners. Target users cover oilfield drilling rig maintenance teams, top drive special repair engineers, mud pump maintenance personnel, oilfield equipment procurement specialists and offshore drilling service providers, fully meeting their refined needs: direct original equipment matching, stable operation under high-pressure and high-vibration working conditions, long-term anti-wear and leakage-proof performance, compliant with hazardous area safety standards, and reducing unplanned downtime caused by spare part failures.

The core purpose of these components is to solve the long-standing pain points in oilfield drilling operations: premature wear of transmission parts, leakage of sealing components under high pressure, mismatched installation of electrical and hydraulic connectors, and short service life of parts in harsh environments. All products comply with API 8C, API 6A, GB/T3452.1 and ATEX explosion-proof standards, with exclusive factory test data: O-ring static pressure resistance up to 108MPa, transmission shaft continuous load operation life of 9200 hours, bearing radial load capacity of 38000N, hydraulic oil circuit block sealing leakage zero within 1200 hours of testing. Backed by mature oilfield machinery manufacturing technology and full-process quality inspection, these parts can be used as both daily procurement standards and on-site technical fault repair references, escorting the stable operation of oilfield key equipment.

Product Introduction

This series of spare parts covers hydraulic sealing, transmission structure, electrical control, fastener and pump maintenance accessories, including ZQ203 series O-rings, YG225-03 pulley shaft, SB series bearings, mechanical seals, encoder and top drive special liners, all processed according to original equipment size parameters, with tolerance controlled within 0.02mm. Adopting oilfield special wear-resistant, anti-corrosion and explosion-proof materials, each component undergoes 100% factory performance testing, completely matching the installation interface and working parameters of NOV TDS-10SH top drive, QWS-2500SD pump and supporting equipment, no on-site modification required, direct installation and use.

Function & Structural Features

Core Functions

Transmission components such as pulley shaft and output shaft undertake power transmission of top drive and pump equipment, ensuring stable torque output without slippage; O-rings, mechanical seals and sealing rings form a multi-level sealing system, blocking hydraulic oil, drilling fluid leakage and external dust intrusion; bearings and shaft sleeves reduce rotational friction, protect main shaft from wear and prolong equipment life; hydraulic integrated oil-way block realizes centralized pipeline connection, avoiding pipeline chaos and leakage; encoders and electrical connectors ensure stable signal transmission of drilling control system, avoiding signal interruption; fasteners and positioning pins ensure stable connection of equipment structure under high vibration.

Structural Advantages

Forged alloy steel is used for transmission shaft parts, with quenching and tempering treatment, high tensile strength and not easy to deform; sealing parts are made of fluororubber material, resistant to oil corrosion and high and low temperature changes, not easy to harden and crack; bearings adopt precision grinding process, with good concentricity and strong vibration resistance; hydraulic and electrical connectors adopt integrated molding design, in line with explosion-proof wiring standards; all thread parts adopt precision tapping process, avoiding sliding wire and cross thread during installation; wear-resistant coating is added to the surface of vulnerable parts to prolong replacement cycle.

Applicable Working Conditions

Suitable for onshore conventional oilfields, desert drilling areas and offshore drilling platforms; applicable ambient temperature range -40℃ to 135℃; adaptable to high-pressure, high-vibration and continuous operation conditions of top drive and mud pump; compatible with H2S-containing drilling fluid environment; fully compliant with oilfield hazardous area explosion-proof safety requirements, suitable for Class I Zone 1 and Zone 2 explosive gas environments; exclusively matching NOV TDS-10SH top drive, QWS-2500SD pump, ZQ203 hydraulic motor and supporting drilling equipment.

Maintenance & Care Suggestions

1. Inspect sealing parts such as O-rings and mechanical seals every 3 months, replace deformed and aged parts immediately to prevent leakage; 2. Lubricate bearings and shaft sleeves every 6 months with special high-temperature and high-pressure lithium grease, and check wear degree; 3. Tighten fasteners regularly according to the specified torque to avoid looseness caused by vibration; 4. Keep electrical connectors and encoders dry and clean, avoid immersion in drilling fluid to prevent signal failure; 5. Store spare parts in a dry, ventilated and dust-free environment, and avoid heavy pressure on precision components such as bearings and seals; 6. Replace vulnerable parts such as sealing rings and gaskets according to the working hours, and do not extend the service time without authorization.

We supply the following spare parts:

On-Site Fault Repair Cases

Case 1: Changqing Oilfield, Shaanxi - TDS-10SH Top Drive Seal Leakage

Location: Changqing Oilfield Onshore Drilling Platform; Fault Model: ZQ203-332 O-ring + Mechanical Seal 22451-1; Load: TDS-10SH top drive continuous operation torque 30218N·m; Field Data: Hydraulic oil leakage at top drive sealing position, oil pressure drops 1.2MPa per hour, equipment cannot maintain normal working pressure; Repair Measures: Replace with this series of O-rings and mechanical seals; Post-repair Indexes: Zero leakage of sealing position, oil pressure stabilized at 13.6MPa, continuous operation for 1200 hours without abnormality; Customer Feedback: Perfectly solves the problem of high-pressure sealing leakage, eliminates the risk of equipment shutdown, and the spare parts match the original equipment perfectly.

Case 2: Bohai Offshore Drilling Platform - QWS-2500SD Pump Bearing Failure

Location: Bohai Offshore Oil Production Platform; Fault Model: Bearing SB68J0024; Load: QWS-2500SD pump full load operation 45KW; Field Data: Bearing abnormal noise, main shaft runout 0.32mm, equipment temperature rise too fast; Repair Measures: Replace with this series of special bearings; Post-repair Indexes: Shaft runout reduced to 0.03mm, operating temperature stabilized at 28℃, abnormal noise completely eliminated; Customer Feedback: The bearing has strong vibration resistance, adapts to offshore harsh working conditions, and the pump runs stably without secondary failure.

Case 3: Tarim Oilfield, Xinjiang - ZQ203 Hydraulic Motor Connector Failure

Location: Tarim Oilfield Desert Drilling Area; Fault Model: 114869-SL POWER CONNECTOR SOCKET; Load: ZQ203 hydraulic motor intermittent operation load 30KW; Field Data: Poor contact of power connector, frequent motor startup failure, signal transmission interruption; Repair Measures: Replace with this series of explosion-proof power connectors; Post-repair Indexes: Stable power connection, 100% startup success rate, signal transmission uninterrupted; Customer Feedback: Solves the problem of poor contact in desert dust environment, and the explosion-proof performance meets offshore oilfield standards.

Frequently Asked Questions

Purchase Guidance & Closing Statement

For oilfield drilling equipment maintenance, emergency fault repair and daily spare parts stocking, this series of components provides a complete and standardized procurement reference, with clear model parameters, reliable quality and complete compliance with industry standards, which can effectively avoid equipment damage and construction delay caused by mismatched or inferior spare parts. Each product has complete factory test data and technical parameters, which can also be used as a professional reference for on-site technical maintenance and fault handling, helping maintenance personnel quickly locate problems and complete repairs efficiently.

We provide full-model supply of these oilfield special spare parts, with professional technical support to assist in model selection and installation guidance. Whether it is single-piece emergency replacement or batch stocking procurement, we can meet your needs. Welcome to consult detailed product parameters, confirm equipment matching models, and place targeted orders to obtain high-quality, stable and reliable spare parts support for long-term safe and efficient operation of oilfield top drive, mud pump and hydraulic equipment.

contact us ：

Emeil: [email protected]  

whatsapp: +86 15275658619