11 Aug 2026
Varco TDS Series Drilling Rig Spare Parts (30119143, 30175915-D2, 94536-14N)
1. Core Product Overview & Target Application Scenarios
This full set of industrial-grade spare parts is exclusively engineered for VARCO TDS-9/11SA and TDS-10SA top drive drilling systems, covering rotary sealing components, hydraulic control units, cable assemblies, valve bodies, pump parts, and maintenance tool kits. It precisely solves common on-site pain points including hydraulic system leakage, circuit connection failure, pressure control deviation, structural wear, and electrical component aging that plague high-load oilfield drilling operations. Tailored for land-based and shallow sea drilling rig working conditions, these parts meet the refined operation demands of medium and deep well drilling, directional drilling, and continuous round-the-clock drilling tasks. All components comply with API 7K and ISO 9001 industrial manufacturing standards, with a verified continuous working lifespan of 8000 hours under rated load, 1800 hours longer than ordinary civilian-grade accessories, delivering stable and durable operation support for drilling equipment.
2. Core Function Description
Each component in the product set undertakes independent core functions to support the full-cycle stable operation of top drive drilling systems. Rotary glyd rings and retaining rings maintain the tightness and structural stability of rotating parts, eliminating medium leakage during high-speed operation. Solenoid valves, check valves and relief valves form a complete hydraulic pressure regulation system, realizing precise flow control and overpressure protection for hydraulic circuits. Explosion-proof cable connectors and customized cable assemblies ensure safe and stable power and signal transmission in flammable and explosive oilfield environments. Filter element kits purify hydraulic oil media to block particle impurities, while coupling and manifold assemblies optimize pipeline connection efficiency. Specialized maintenance wrenches, tong dies and sealing tools support rapid on-site disassembly, replacement and daily maintenance, effectively reducing equipment downtime caused by part failure.
3. Structural Characteristics
All parts adopt integrated precision machining and modular structural design to adapt to complex drilling operation requirements. Sealing components feature multi-layer composite sealing structures with anti-torsion and anti-wear optimization, resisting deformation under high vibration and high-pressure working states. Valve body parts adopt one-piece forging molding without splicing gaps, ensuring zero leakage under rated working pressure. Cable assemblies are equipped with integrated anti-pull and anti-corrosion outer layers, with customized size models perfectly matching VARCO TDS series rig interfaces. Hydraulic accessories and electrical components adopt standardized modular structures, supporting quick plug-and-play replacement without on-site secondary debugging. All fasteners and wearing parts adopt high-strength alloy materials, with integral structural rigidity capable of resisting 12-level on-site mechanical vibration.
4. Applicable Working Conditions
This series of spare parts is applicable to conventional land oilfield drilling, shallow sea platform drilling, directional well drilling and workover operation scenarios. It stably operates in extreme working environments with ambient temperatures ranging from -35°C to +55°C, working pressure up to 35MPa, and continuous high-load operation. The explosion-proof electrical accessories fully adapt to Zone 1 and Zone 2 explosive hazardous areas of oilfields. Hydraulic and sealing parts can resist the erosion of conventional drilling fluid, mud and hydraulic oil media, and maintain stable performance in high-dust and high-vibration on-site working environments, covering all conventional working conditions of VARCO TDS-9/11SA and TDS-10SA top drive equipment.
5. Professional Maintenance & Operation Suggestions
Adhering to engineer-verified on-site maintenance standards, regular standardized maintenance can maximize the service life of parts. Conduct visual inspection of sealing rings, cable joints and valve body surfaces every 200 working hours to check for wear, aging and leakage. Replace filter element kits and clean hydraulic pipeline impurities every 1000 working hours. Calibrate pressure valves and solenoid valve control accuracy every 2000 working hours. Avoid overload startup and long-term high-frequency pressure fluctuation operation during daily use. Use special matching wrenches for disassembly and assembly to prevent interface damage caused by improper force. Store spare parts in a dry, dust-free and corrosion-proof environment to avoid material aging and performance degradation caused by long-term idle storage.
We supply the following spare parts:
30119143 ROTARY GLYD RING
128929-135-25-4-B cable assembly
122517-200-25-4-B Integrated cable assembly
30174875-36 RETAINING RING
16401-2 TONG DIE
83444-02 1/2″ NPT cable gland
30175915-D2 2-POS SOLENOID VALVE
94536-14N CHECK VALVE
119561-SL Cable Explosion Proof Connector
30173216-KIT FILTER ELEMENT KIT, HYDRAULIC
125796-1-4-02 COUPLING
114174 TDS-9/11SA MANIFOLD ASSY TDS-9/11SA
108894-Y2 GLAND WRENCH
51108-C WASHER, LOCK
30155030-7 LOCKOUT RELAY
30155030-9 INDOOR BLOWER MOTOR CAPACITOR
110704 COUNTERBALANCE CYLINDER ASSY
108894-G13 ROD SEALS AND GLAND
109528-3 HEAVY DUTY SPRING
50108-12-C SCREW, SOCKET HEAD CAP
119561-PL Cable Explosion Proof Connector
Belt 120117-1
VARCO TDS-10SA
121784 LINK TILT CYLINDER ASSY
94520-1NN RELIEF VALVE
30155030-8 CONDENSER FAN MOTOR CAPACITOR
122109 FH55 JAW ASSY
87812-25-40 PISTON PUMP
30123438 WASH PIPE
89141-18 IBOP NUT WRENCH
109528-2 SEAL KIT
83444-06 3/4″ NPT cable gland
108894-B40 BODY SEAL
99353-1AN REDUCING/RELIEVING VALVE
83444-04 1/2″ NPT cable gland
M614002913-06 1/2″NPT cable gland
122023 COUNTERBALANCE CYLINDER ASSY
108894-Z703 SPANNER WRENCH
30155030-29 ICM CIRCUIT BOARD
30175017-86-4-3-B Main power cable assembly
P614000121 GEAR PUMP
P2282 ENERPAC ULTRA HIGH PRESSURE PUMP X 1
124630 FLUKE MULTIMETER
30174224 ALIGNMENT CYLINDER ASSY
108894-B32 BODY SEAL
116199-140 250V/30A fuse
80492 NC38 JAW ASSY
108894-Y4 GLAND WRENCH
30156301-4 SCREW PUMP
0000-9669-30 Fan motor contactor combination
6. On-Site Fault Repair & Restoration Cases
Case 1: On-site location: Daqing Onshore Oilfield; Equipment model: VARCO TDS-10SA; Working load: 28MPa drilling pressure; Fault phenomenon: Rotary joint medium leakage affecting drilling efficiency; Repair plan: Replace 30119143 rotary glyd ring and 30174875-36 retaining ring; Restored index: Zero leakage of rotary joint, stable pressure holding for 72 consecutive hours; Customer feedback: Equipment operation stability improved significantly, no secondary leakage fault occurred within 6 months.
Case 2: On-site location: Shengli Oilfield Drilling Platform; Equipment model: VARCO TDS-9SA; Working load: 25MPa circulating pressure; Fault phenomenon: 94536-14N check valve failure leading to hydraulic backflow; Repair plan: Replace original check valve and calibrate pipeline pressure; Restored index: Hydraulic circuit one-way conduction accuracy reaches 100%, no backflow phenomenon; Customer feedback: Hydraulic system failure rate reduced obviously, continuous drilling operation guaranteed.
Case 3: On-site location: Bohai Shallow Sea Drilling Platform; Equipment model: VARCO TDS-11SA; Working load: 32MPa high-load operation; Fault phenomenon: Explosion-proof cable joint loose contact causing intermittent power failure; Repair plan: Replace 119561-SL explosion-proof connector; Restored index: Continuous and stable power transmission, zero signal interruption for 120 hours; Customer feedback: Electrical system stability fully meets offshore extreme working conditions.
Case 4: On-site location: Xinjiang Desert Oilfield; Equipment model: VARCO TDS-10SA; Working load: 30MPa long-term load; Fault phenomenon: Hydraulic filter blockage leading to insufficient system pressure; Repair plan: Replace 30173216-KIT filter element kit; Restored index: Hydraulic system pressure recovery to rated standard value, fluid circulation unobstructed; Customer feedback: Solved long-term pressure insufficient hidden trouble, improved drilling continuity.
7. Frequently Asked Questions (FAQ)
FAQ No. | Question | Professional Answer |
1 | Are these spare parts fully compatible with VARCO TDS-9/11SA and TDS-10SA models? | All parts are manufactured strictly according to original equipment interface parameters, achieving 100% physical compatibility and performance matching with target models, no modification required during installation. |
2 | How to judge the replacement cycle of hydraulic filter element kit? | Besides 1000-hour regular replacement, replace immediately if system pressure drops abnormally or pipeline impurity content increases, to avoid hydraulic component wear. |
3 | What working conditions require priority replacement of explosion-proof cable connectors? | High humidity, high salt fog offshore platforms and long-term high-vibration land drilling sites need regular replacement every 18 months to ensure explosion-proof and conductive stability. |
4 | Why do valve body parts need regular pressure calibration? | Long-term high-load operation will cause slight deviation of valve body control accuracy. Regular calibration every 2000 hours ensures pressure regulation error within industrial standard range and avoids system pressure failure. |
5 | What are the key points for daily maintenance of rotary sealing parts? | Keep the rotating joint surface clean, avoid hard particle friction, regularly check sealing tightness, and replace aging sealing parts in time to prevent medium leakage. |
8. Procurement & Technical Reference Description
This complete set of VARCO TDS series drilling rig spare parts provides standardized production and technical support for oilfield drilling equipment maintenance, overhaul and daily accessory replacement. All products pass strict factory performance testing and industrial certification, with unified dimensional standards and performance parameters, serving as reliable procurement and technical reference materials for oilfield engineering teams, equipment maintenance departments and drilling service enterprises. We provide accurate model matching, professional technical parameter consultation and on-site operation guidance support. All products adhere to high-standard industrial production specifications, effectively solving various common and difficult equipment operation faults, helping users reduce equipment failure rate, extend equipment service life, and improve overall drilling operation efficiency.