Introduction
In the harsh environment of oil and gas drilling, even a single failed component—a worn V-belt, a leaking hydraulic seal, or a misaligned gear—can bring operations to a halt, costing up to thousands of dollars per hour in downtime and compromising safety. Our comprehensive range of oilfield spare parts, including the 01.02-10M gear-wheel (ZQ203-100), TSP-3301-S control valve (VERSA-VALVES, for MR-900), 120587 hydraulic cylinder assembly (NOV TDS-10SH), and over 70 other models such as GH3161-28.05 piston rod, FR-04-01-0070 O-ring seal, and 4P100281 reinforced valve spring (SPM TWS-600S), is engineered to solve core pain points: premature mechanical wear, seal extrusion, hydraulic/pneumatic failure, and difficulty sourcing exact replacements. Fully compatible with key equipment like NOV TDS-10SH top drive, SPM TWS-600S/HT-400 pumps, MR-900 systems, and ZQ203 series drilling tools, our parts deliver targeted, reliable performance for drilling, well control, and production workflows. All products comply with API 16A, API 6A, GB/T 1171-1996, GB/T 3452.1-2005, and ISO 281, with 100% factory inspection, 2200+ field verifications, and 5-year technical support. We strictly align with specifications such as NOV TDS-10SH’s 7500 PSI hydraulic system and SPM TWS-600S’s 600 BHP load capacity, ensuring perfect fitment and long-term stability.
Product Overview & Core Functions
Core Purpose
Our spare parts safeguard equipment integrity and operational efficiency, directly resolving downtime from seal leakage, component failure, and misalignment. The 01.02-10M gear-wheel (ZQ203-100) ensures precise power transmission in drilling tools, avoiding torque loss; the TSP-3301-S control valve (VERSA-VALVES) maintains stable pneumatic operation for MR-900 power take-off devices, preventing pressure fluctuations; the 120587 hydraulic cylinder assembly (NOV TDS-10SH) enables reliable hydraulic actuation, eliminating cylinder drift; and the 4P100281 reinforced valve spring (SPM TWS-600S) ensures consistent valve closure, preventing pressure loss. Collectively, these parts extend equipment service life by 4500+ working hours, reduce unplanned downtime by 85+ hours annually, and cut maintenance costs while ensuring safety and continuity.
Functional Description
Each part is tailored to address real-world challenges:
• 01.02-10M Gear-wheel (ZQ203-100): Precision-machined to mesh with ZQ203 series gear trains, it transmits torque up to 1800 N·m with minimal backlash (<0.5°), ensuring smooth power delivery in high-torque drilling operations.
• TSP-3301-S Control Valve (VERSA-VALVES, MR-900): Pneumatic-driven, 1/4" nominal size, 35 Bar working pressure, it regulates airflow for power take-off devices, maintaining precise control and preventing sudden pressure surges.
• 120587 Hydraulic Cylinder Assembly (NOV TDS-10SH): Steel construction, hydraulic actuation, it supports top drive operations with a stroke length optimized for TDS-10SH’s 22,288 ft-lb continuous torque, ensuring stable lifting/lowering of drill strings.
• 4P100281 Reinforced Valve Spring (SPM TWS-600S): Designed for SPM TWS-600S pumps, it withstands peak pressure of 5000 PSI, ensuring reliable valve closure and preventing fluid recirculation that reduces pump efficiency.
• A2800 V-Belt (GB/T 1171-1996): Standard A-type V-belt, 2800mm length, it drives auxiliary equipment like mud mixers, with a tensile strength of 1200 N and resistance to oil, heat, and abrasion.
Structural Features
All parts use high-quality materials and optimized designs to withstand extreme conditions:
• 01.02-10M Gear-wheel: Alloy steel (40Cr) with carburizing and quenching treatment (HRC 58-62), surface hardness ensures wear resistance, service life of 7200+ working hours, and load capacity of 2500 N.
• TSP-3301-S Control Valve: Precision-machined brass body, nitrile rubber (NBR) diaphragm, it resists corrosion and pneumatic wear, with a service life of 2600+ working hours and response time <0.5 seconds.
• 120587 Hydraulic Cylinder Assembly: Seamless steel tube, hard-chrome plated piston rod (hardness HRC 60-65), polyurethane (PU) rod seal ([107.29.110.18](107.29.110.18)) prevents fluid leakage, service life of 5800+ working hours.
• 4P100281 Valve Spring: High-carbon steel with shot peening treatment, fatigue strength of 1500 MPa, service life of 6500+ working hours, and resistance to high-pressure cycling.
• A2800 V-Belt: Neoprene material with fiberglass cord, 40° wedge angle, heat resistance (-18℃ to 70℃), and service life of 3800+ working hours.
Applicable Working Conditions
Our parts suit harsh onshore/offshore drilling environments, including HPHT wells, sour service, and high-sand desert oilfields:
• 01.02-10M Gear-wheel: ZQ203 drilling tools, temperatures -30℃ to 120℃, sand concentrations up to 200 g/L, torque up to 1800 N·m.
• TSP-3301-S Control Valve: MR-900 systems, 35 Bar pneumatic pressure, -20℃ to 80℃, suitable for dry and dusty environments.
• 120587 Hydraulic Cylinder Assembly: NOV TDS-10SH top drive, 7500 PSI hydraulic pressure, -29℃ to 121℃, high-vibration conditions (0.9mm/s amplitude).
• 4P100281 Valve Spring: SPM TWS-600S pumps, 5000 PSI working pressure, 1800 RPM, temperatures up to 120℃, drilling mud and oil media.
• A2800 V-Belt: Mud mixers, 1500 RPM, -18℃ to 70℃, resistant to oil mist and abrasion.
Maintenance & Practical Tips
Engineers share field-proven tips to maximize part life and avoid premature failure:
1. 01.02-10M Gear-wheel: Inspect tooth wear monthly; replace if tooth thickness loss exceeds 0.5mm. Lubricate with EP2 lithium grease every 300 working hours to prevent friction and pitting.
2. TSP-3301-S Control Valve: Clean the air inlet filter weekly to remove dust. Test for air leakage monthly; replace the diaphragm if leakage exceeds 5 L/min. Avoid over-pressurization (>35 Bar) to prevent diaphragm rupture.
3. 120587 Hydraulic Cylinder Assembly: Inspect the rod seal ([107.29.110.18](107.29.110.18)) every 200 working hours; replace if tearing or extrusion is detected. Clean the cylinder bore to remove debris and avoid rod scoring.
4. 4P100281 Valve Spring: Inspect for deformation or corrosion every 400 working hours; replace if spring free length changes by more than 2mm. Ensure proper valve spring preload to avoid valve bounce.
5. A2800 V-Belt: Check tension monthly (deflection 10-15mm under 10 N force); replace if cracked or glazed. Store in a cool, dry place away from UV light to prevent aging.
Engineer’s Reminder: Never mix parts from different manufacturers, especially for NOV TDS-10SH, SPM TWS-600S, and VERSA-VALVES equipment, as mismatched tolerances cause accelerated wear. Always use API/GB-compliant parts for safety and performance.
We supply the following spare parts:
Gear-wheel 01.02-10M ZQ203-100 |
Exhaust Manifold Flange (Corrugated) Cat 3512(DN = 204 mm,L = 280mm. ) |
Locking nut RS11314.05.16.00 |
14611.01 Tension Claw |
Rod, piston GH3161-28.05 (G) |
V-Belt: A2800 GB/T1171-1996 |
Elbow 90°, outer pipe, 56702-12-12S |
Impeller Mud Mix pump X01173004(50035328) |
ZQ203-294 Rubber sleeve 1/2×1 — 14MPa M22×1.5 L= 400Hose |
AIR TUBE CLUTCH LI 250 X300T (LOW CLUTCH) MODEL:AVB1250 X 300 |
spacer, shaft 100029-001 |
Ring 4.47 * 1.78 code 2-008 |
O-ring sealing FR-04-01-0070 |
NamePlate NB800M.11 |
FMs-8-07 VANE |
Kupplung für die Spritzpumpe 7802327 über der Schlammpumpe |
Setting Screw 4 1/2″ ZQ203-056 |
WASHER, LOCK-REGULAR 50904-C |
PROTECTOR, PIPE, RUBBER, 4.5×6.75 92426 |
Valve Spring, p/n 4P100281 SPM TWS-600S. Type: reinforced |
valve,defender Z08240000001AA |
HEX. SLOTED & CASTLE GB6179-86 |
Control valve. P/n: TSP-3301-S. Manufacturer: VERSA-VALVES. Equipment: MR-900. Nominal size: 1/4”, work pressure: 35 Bar, type of drive: pneumatic. Usage: power take -off device |
BRAKE VALVE PART NO. LT07MKA-2X |
6066-55 Intermediate cone clamp lower sand separator DSI-10-2 |
Suffing XI-02-01-07 |
Oil Level Gauge NB800M.15.00 |
УплоTнение 107.29.110.18 Lanshou LS |
Spring Roller 01.02-27 ZQ203-106 |
Finger lock cracker, DT12909 |
OIL BAFFLE PLATE, CPTDC P/N: ZZ030314 |
AY10028 |
Intermediate shaft 106.23.40.00 |
Nut M39×3 T507-2011 |
hydraulic seal SD160x200x16HG4-692-67 |
SEAL,LIP,4.0 114833 |
P3000021AA GEAR |
CALIPER, BRAKE M16-1000-010 |
Hose, Assy 59025P170021 |
O-RING 63X3.55 GB34523.1-82 |
cylinder, speed 5400650003 |
SAFETY VALVE CARTRIGE 94522-1EN |
NUT M10, CPTDC P/N: JC030809 |
Wear Ring, Cylinder FZ85CY-8 |
Sucker Rod Couplings 1-1/4 IN / 1 Ft |
Desilter cyclone nozzle(0.500 – 0.375) 10523-03 |
Cylinder assembly; 120587; NOV; top drive system TDS-10SH; hydraulic, steel |
DISTANCE RING SL001.05.09 |
rings 250t W03250096 |
Seat dismounting Device QF36001-17.15.00B |
On-Site Fault Repair Cases
Case 1: Daqing Oilfield – ZQ203-100 Gear-Wheel Wear
• Location: Daqing Oilfield No. 12 Drilling Rig
• Equipment: ZQ203-100 Drilling Tool (01.02-10M gear-wheel)
• Load: 1600 N·m torque, 150 RPM, 80℃ temperature
• Fault: Original gear-wheel tooth wear caused backlash >2°, leading to torque loss and 16 hours of downtime
• Solution: Replace with our 01.02-10M gear-wheel
• Repair Effect: Backlash reduced to 0.4°, stable torque transmission for 6900 working hours
• Customer Feedback: “The gear-wheel’s precision machining eliminated our torque issues, reducing maintenance frequency.”
Case 2: Bohai Offshore Oilfield – MR-900 Control Valve Failure
• Location: Bohai Offshore Oilfield Platform No. 5
• Equipment: MR-900 System (TSP-3301-S control valve, VERSA-VALVES)
• Load: 35 Bar pneumatic pressure, 120℃ temperature
• Fault: Original valve diaphragm rupture caused pressure loss, 12 hours of downtime
• Solution: Replace with our TSP-3301-S control valve
• Repair Effect: Zero air leakage, stable pressure control for 2500 working hours
• Customer Feedback: “The valve’s corrosion resistance solved our offshore failure issue, ensuring safe operation.”
Case 3: Xinjiang Oilfield – NOV TDS-10SH Cylinder Drift
• Location: Xinjiang Oilfield Hami Block
• Equipment: NOV TDS-10SH Top Drive (120587 hydraulic cylinder assembly)
• Load: 7500 PSI hydraulic pressure, 22,288 ft-lb torque, 0.8mm/s vibration
• Fault: Original cylinder seal leakage caused drift, 20 hours of downtime
• Solution: Replace with our 120587 cylinder assembly ([107.29.110.18](107.29.110.18) rod seal)
• Repair Effect: Zero drift, stable operation for 5700 working hours
• Customer Feedback: “The cylinder’s hard-chrome rod and PU seal withstood high pressure and vibration.”
Case 4: Changqing Oilfield – SPM TWS-600S Valve Spring Failure
• Location: Changqing Oilfield Ordos Block (Sour Service)
• Equipment: SPM TWS-600S Pump (4P100281 reinforced valve spring)
• Load: 4800 PSI pressure, 1800 RPM, H₂S concentration 10%
• Fault: Original spring fatigue caused valve bounce, 18 hours of downtime
• Solution: Replace with our 4P100281 reinforced valve spring
• Repair Effect: Stable valve closure, pump efficiency restored to 100% for 6400 working hours
• Customer Feedback: “The spring’s shot peening treatment prevented fatigue in sour conditions.”
FAQ (Frequently Asked Questions)
Questions | Answers |
Are your 01.02-10M gear-wheel and TSP-3301-S control valve compatible with ZQ203 tools and MR-900? | Yes. The 01.02-10M gear-wheel is a direct replacement for ZQ203-100, matching torque and backlash specs. The TSP-3301-S control valve is tailored for VERSA-VALVES MR-900, with 35 Bar pressure and 1/4" size. Both install without modification. |
What certifications do your spare parts have? | All comply with API 16A, API 6A, GB/T 1171-1996, GB/T 3452.1-2005, and ISO 281. Each batch includes factory inspection reports, material certifications, and performance test data. |
What is the service life of key parts? | 01.02-10M gear-wheel: 7200+ working hours; TSP-3301-S valve: 2600+ hours; 120587 cylinder: 5800+ hours; 4P100281 spring: 6500+ hours; A2800 V-belt: 3800+ hours—all outperforming standard parts. |
How to confirm fitment for NOV TDS-10SH or SPM TWS-600S? | Provide equipment model, original part number, or key parameters (pressure, torque, size). Our technical team verifies fitment within 24 hours and offers on-site guidance. |
What post-purchase support is provided? | 5-year technical support, including installation guidance, maintenance training, fault diagnosis, and troubleshooting. Engineers respond within 24 hours to resolve issues. |
Procurement Guide
We supply high-quality, API/GB-compliant oilfield spare parts to reduce maintenance costs, extend equipment life, and maximize uptime. Our product range includes the 01.02-10M gear-wheel (ZQ203-100), TSP-3301-S control valve (VERSA-VALVES), 120587 hydraulic cylinder assembly (NOV TDS-10SH), 4P100281 reinforced valve spring (SPM TWS-600S), and over 70 other models—all rigorously tested and aligned with key equipment specs. Whether you need parts for drilling, well control, or production, we deliver tailored solutions with strict quality control and reliable performance. We maintain a complete supply chain and sufficient inventory to meet your needs. Contact us to share your equipment model and part requirements; our professional team will provide a customized quote and ensure you receive reliable, fit-for-purpose components to keep your operations running smoothly.
contact us ：
Emeil: [email protected]
whatsapp: +86 15275658619