Introduction
In high‑pressure, high‑temperature (HPHT) and corrosive oilfield environments, unplanned downtime from failed or incompatible components can cost tens of thousands of dollars per hour, risking safety and production continuity. Our comprehensive range of spare parts—including the stuffing‑box seal 110056 (piston rod type, NOV topdrive TDS‑10SH), tungsten‑coated washpipe 30123289‑TC (Varco TDS‑11), cylinder liner seal QF360010‑04.05, and over 60 additional models—addresses core operational pain points: catastrophic seal failure, premature wear of rotating/transmitting components, fluid leakage, and difficulty sourcing exact replacements. Fully compatible with NOV TDS‑10SH/11SA top drives, Varco drilling systems, and NOV/SPM equipment, our parts deliver reliable performance across drilling, well completion, and production workflows. All comply with API 6A/6D, ISO 23936‑2 (elastomers), and GB/T standards, with 100% factory inspection, 1,500+ on‑site validations, and 5‑year technical support to ensure perfect fitment and long‑term stability.
Product Overview & Core Functions
Core Purpose
Our spare parts maintain the integrity of critical systems in oilfield equipment, directly resolving downtime from seal leakage, component wear, and pressure loss. The 110056 stuffing‑box seal (piston rod type, NOV TDS‑10SH) prevents drilling fluid escape in top drives; 30123289‑TC tungsten‑coated washpipe (Varco TDS‑11) resists abrasion under high mud pressure; QF360010‑04.05 cylinder liner seal contains hydraulic fluid in linear actuators; and 32SB180J0033 centrifugal pump shaft ensures smooth rotation in sand‑laden service. Collectively, they extend equipment runtime by 3,000+ hours on average, cut unplanned outages by 50+ hours annually, and reduce maintenance costs while boosting operational safety.
Functional Description
Each part is engineered to solve specific industry challenges:
• 110056 stuffing‑box seal (NOV TDS‑10SH): Delivers dynamic sealing under 7,500 PSI continuous pressure and 180 RPM rotation, eliminating leaks in top drive piston rod assemblies.
• 30123289‑TC washpipe (Varco TDS‑11): Tungsten carbide coating reduces wear by 70% vs. uncoated models, maintaining 3" bore flow integrity in HPHT mud systems (up to 10,000 PSI, 120°C).
• QF360010‑04.05 cylinder liner seal: Withstands cyclic loading in hydraulic cylinders, preventing extrusion and maintaining pressure stability across 5,000–10,000 PSI ranges.
• 32SB180J0033 centrifugal pump shaft: High‑strength alloy construction resists bending and abrasion in fluids with 200 g/L sand concentration, reducing vibration‑induced failure.
• Lower IBOP valve assembly 91138 (M614003029‑SPL‑001): Provides reliable pressure isolation in well control systems, with fast response (<0.5 seconds) and zero leakage under 15,000 PSI.
Structural Features
• 110056 seal: Multi‑layer elastomer‑metal composite with optimized lip geometry and spring loading, ensuring consistent contact pressure in dynamic motion.
• 30123289‑TC washpipe: Precision‑bored 3" ID with hardfacing (HRA 85+) and polished inner surface, minimizing fluid turbulence and erosion.
• QF360010‑04.05 seal: High‑temperature nitrile rubber (HNBR) matrix with fabric reinforcement, resisting extrusion and chemical attack from drilling muds.
• 32SB180J0033 shaft: Forged alloy steel with surface hardening (HRC 58–62) and dynamic balancing, reducing runout to <0.05 mm at 3,000 RPM.
• Bull gear 315‑11‑0 (177T): Precision‑machined helical teeth with case hardening (HRC 58–62), delivering 8,000 N·m torque capacity and 10,000+ hour service life.
Applicable Working Conditions
Our parts excel in extreme oilfield environments:
• 110056 seal: NOV TDS‑10SH top drives in land/offshore drilling, -40°C to 150°C, 7,500 PSI continuous pressure, mud with H₂S/CO₂ up to 15%/5%.
• 30123289‑TC washpipe: Varco TDS‑11/11SA systems, HPHT mud service (up to 10,000 PSI, 120°C), high‑abrasion formations (sandstone, shale).
• QF360010‑04.05 seal: Hydraulic cylinders in drilling rigs, well control units, and production skids, cyclic loading (10–100 cycles/min), 5,000–10,000 PSI.
• 32SB180J0033 shaft: Centrifugal pumps in sand‑control systems, fluid temperatures up to 120°C, sand concentrations 100–200 g/L.
• Lower IBOP valve 91138: Wellhead and BOP stacks, 15,000 PSI working pressure, NACE MR0175 compliance for sour service.
Maintenance & Practical Tips
Our engineering team shares field‑proven practices to maximize part life:
• 110056 seal: Inspect for scoring/leakage every 500 operating hours; replace if wear exceeds 0.3 mm. Use approved lubricant (API GL‑5) to maintain lip flexibility and prevent dry running.
• 30123289‑TC washpipe: Clean internal bores monthly to remove mud solids; check for wear grooves (>0.2 mm depth) and replace promptly. Avoid impact loading during rig‑up/‑down.
• Seals (QF360010‑04.05, A459.17, 51300‑425‑B): Store in sealed packaging at 0–25°C, away from UV light. Install with clean hands/tools; never reuse old seals. Apply light lubricant during fitting to prevent tearing.
• 32SB180J0033 shaft: Check runout with dial indicator during maintenance; correct if >0.05 mm. Regrease every 200 hours with high‑temp lithium complex grease (NLGI 2).
• Gears (315‑11‑0, TQ340/35Y.1.9‑08): Inspect tooth contact pattern quarterly; replace if pitting/scoring exceeds 10% of face width. Lubricate with EP gear oil (ISO 220) to maintain film thickness.
Engineer’s Note: Never mix parts from different manufacturers—especially seals, bearings, and shafts—as mismatched tolerances cause accelerated wear and catastrophic failure. Always store critical components (e.g., 110056, 30123289‑TC) in climate‑controlled areas to prevent material degradation.
We supply the following spare parts:
Seal QF360010-04.05
AH130101051500Cylinder liner gland
Lock Element, Valve Cover, p/n 551-105-04
M19-3006-010 FERRULE, 1/16, OVAL, ALUMINIUM
192047037 IMPELLER 3X2X11”
32SB180J0033 shaft, Centrifugal pump
4730-678-3007 ELBOW, 90 1-1/4NPT GALV MI
51300-425-B 0-RING, “S” TUBE, TDS 11SA. (10490076-001)
5305-581-0214 HEX HEAD CAP SCREW, 5/8″-11 X 2 1/4″
A459.17 O-ring O-ring
Battery seals 2″ (-40) 30124576 (Vendor PN :RK0200Q000)
BOLT, SHOULDER, MODIFIED 301771109-04
Clamp assembly800-05.04.00 RGF
COMMUNICATION CONVERSION CARD, PC17520A CY405102
Disk p/n 6832138
Drill pipe guide ring 3 1/2″ 208/150×36 T754020528B
Filter element 10 micron, for Centrifuge Pump PKR-926836
FILTER HYDRAULIC SYSTEM 30173216-1
FITTING, PRESS REL 53250-5
FRONT PART RUBBER CORE 2S84.01A.01.00
GEAR, BULL, 177T 315-11-0
INTERMEDIATE SHAFT WITH GEARS 9702121220
Jaw 85786-2
Large Gear TQ340/35Y.1.9-08 TQ340-234
Lower Gasket (ring) 01.03-11 ZQ203-178
LOWER IBOP Valve Assembly 91138, Catalog M614003029-SPL-001
Martin Dyke T/Oplate 10090419-001
NUT , TENSION
one-wayCANBus acquisition interface SK-9N13-A2(two-wire system)
O-RING S01-1159-01N
PIN BKD-3-6C3
Pipe assy. 125098
Piston JQHSB50.1.2.1-2
Pump Body 4 x 3 x 13 G0006026
PUMP QY Series Air-Powered Test Stand QY-140 AJ
Relay Air VL/O-3-1/4
Right Roller 41″ for carriage 124539-503
ROTARY TABLE DRIVE CASE OUTPUT SHAFT ASSEMBLY, DRAWING NUMBER: BG092009-0300
S05-1009-010 Oil seal S05-1009-010
SB68FJ0045 Key, centrifugal pump
Seal, Cylinder Liner 1134311
Seal-Pump 114-9088
stuffing-box seal; p/n: 110056; Manufacturer: NOV; Equipment: topdrive TDS-10SH; Type: piston rod
Sveave, Torsion device 122947
Tungsten coated washpipe, high pressure 30123289-TC Varco TDS-11
Valve Body GH3161-05.11.01(G)
W001-045-04-059 Electromotor joint 75 KW SB68-1.4
WASHER, LOCK-REGULAR 50912-C
wedge for fixing nets 5895001
Woodward SPM-D2-11 8440-2165
On‑Site Fault Repair Cases
Case 1: Daqing Oilfield – TDS‑10SH Top Drive Seal Leakage
• Location: Daqing Oilfield No. 5 Drilling Rig
• Equipment: NOV TDS‑10SH top drive (stuffing‑box seal 110056)
• Load: 6,000 PSI mud pressure, 150 RPM
• Fault: Original seal failed, causing 15 L/min fluid leakage; drilling halted for 8 hours
• Solution: Replaced with 110056 stuffing‑box seal
• Result: Zero leakage after 2,000 hours; runtime extended by 3x vs. previous seal
• Customer Feedback: “Perfect fit, no leaks, and reduced maintenance frequency. Saved 40+ hours of downtime this quarter.”
Case 2: Bohai Offshore – Tungsten‑Coated Washpipe Wear
• Location: Bohai Offshore Platform No. 3
• Equipment: Varco TDS‑11 (washpipe 30123289‑TC)
• Load: 8,000 PSI mud pressure, high sand concentration (180 g/L)
• Fault: Uncoated washpipe wore through in 600 hours, causing pressure loss and vibration
• Solution: Installed 30123289‑TC tungsten‑coated washpipe
• Result: No wear after 1,800 hours; mud flow stability maintained; vibration reduced by 80%
• Customer Feedback: “Tungsten coating is a game‑changer. Cut washpipe replacement costs by 70% and avoided non‑productive time.”
Case 3: Xinjiang Oilfield – Centrifugal Pump Shaft Failure
• Location: Xinjiang Oilfield Hami Block
• Equipment: Centrifugal pump (shaft 32SB180J0033)
• Load: 3,000 RPM, 200 g/L sand
• Fault: Shaft bent, causing severe vibration and pump shutdown after 400 hours
• Solution: Replaced with 32SB180J0033 high‑strength shaft
• Result: Stable operation for 1,200 hours; vibration reduced to <0.02 mm/s
• Customer Feedback: “Resisted abrasion far better than standard shafts. Eliminated weekly maintenance and production losses.”
Case 4: Changqing Oilfield – Cylinder Liner Seal Extrusion
• Location: Changqing Oilfield Ordos Block
• Equipment: Hydraulic cylinder (seal QF360010‑04.05)
• Load: 8,000 PSI cyclic pressure, 50 cycles/min
• Fault: Original seal extruded, causing pressure drop and cylinder drift
• Solution: Installed QF360010‑04.05 reinforced cylinder liner seal
• Result: No extrusion after 1,500 cycles; pressure stability maintained
• Customer Feedback: “Reinforced design solved extrusion issues. Reduced cylinder replacement frequency by 60%.”
FAQ (Frequently Asked Questions)
Questions | Answers |
Are your 110056 stuffing‑box seal and 30123289‑TC washpipe fully compatible with NOV/Varco equipment? | Yes. The 110056 seal is precision‑matched to NOV TDS‑10SH top drives, with 100% fitment and zero‑leak performance under 7,500 PSI. The 30123289‑TC washpipe is engineered for Varco TDS‑11/11SA systems, with 3" bore and tungsten carbide coating to resist abrasion in HPHT muds. Both are drop‑in replacements, no modification required. |
What certifications do your products hold? | All parts comply with API 6A/6D (wellhead/valve standards), ISO 23936‑2 (elastomer performance), NACE MR0175 (sour service), and GB/T (national standards). Each batch includes a factory inspection report and material certification. |
What is the service life of key parts like 110056 and 30123289‑TC? | The 110056 seal lasts 2,000+ hours under normal conditions (3x longer than standard seals). The 30123289‑TC washpipe delivers 1,800+ hours in high‑abrasion service (3x longer than uncoated models). Seals (QF360010‑04.05, A459.17) last 1,500–2,000 hours; shafts (32SB180J0033) last 1,200+ hours in sand service. |
How do I confirm the correct part for my equipment? | Provide your equipment model (e.g., NOV TDS‑10SH, Varco TDS‑11), original part number, or key parameters (size, pressure, load). Our technical team will verify fitment within 24 hours and offer on‑site guidance to avoid mismatches. |
What post‑sale support do you provide? | We offer 5‑year technical support, including installation training, maintenance troubleshooting, and fault diagnosis. Our engineers respond within 24 hours to resolve issues, ensuring minimal downtime. |
Procurement Guide
We specialize in supplying high‑quality, compatible oilfield spare parts to help operators reduce maintenance costs, extend equipment life, and maximize production uptime. Our product range includes the 110056 stuffing‑box seal (NOV TDS‑10SH), 30123289‑TC tungsten‑coated washpipe (Varco TDS‑11), QF360010‑04.05 cylinder liner seal, and over 60 additional models—all rigorously tested to meet API, ISO, and NACE standards. Whether you need replacement parts for drilling, well completion, or production systems, we deliver tailored solutions with fast turnaround and transparent pricing. Contact us to share your equipment model and part requirements; our 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