Product Introduction
This series covers all essential replacement parts for the LSNOI 3NB-1600 mud pump power end lubrication system, including standard hexagon bolts, locking nuts, oil pipeline joints, precision-sized oil pipes, left and right oil channels, oil retainer groovers, left and right gear oil tanks, oil traps, sealing plugs, gaskets, magnetic debris filtering blocks, connecting rods, cotter pins and pipe liners. Each part is made of oil-resistant, vibration-resistant and wear-resistant materials, processed by precision CNC machining to achieve 100% perfect fit with the original lubrication system structure, requiring no on-site modification, reaming or secondary processing, suitable for daily lubrication system inspection, regular maintenance and emergency fault repair.
Core Function Specifications
Every component in this lubrication system parts lineup is designed to meet harsh oilfield operating requirements, with stable and reliable performance indicators:
- Stable Lubricating Oil Supply: The complete oil pipeline and channel system ensures continuous and uniform oil delivery to all power end friction points, maintaining stable oil pressure between 0.2-0.4MPa.
- Efficient Impurity Filtration: Built-in magnetic blocks adsorb metal wear debris in lubricating oil, preventing abrasive wear on gears and bearings and keeping oil clean.
- Leak-Proof Sealing: Custom gaskets, pipe liners and locking joints realize zero oil leakage under long-term mechanical vibration and temperature fluctuations.
- Vibration Resistance: High-strength fasteners and reinforced oil pipes avoid loosening or rupture under continuous mud pump vibration.
- Precise Oil Distribution: Left and right dedicated oil channels and oil tanks realize balanced lubrication of bilateral gear components, avoiding partial insufficient lubrication.
Structural Characteristics
These lubrication system parts feature optimized structures suitable for oilfield field installation and maintenance:
- Modular Channel Design: Split left and right oil channel assemblies facilitate independent disassembly, cleaning and replacement, simplifying maintenance operations.
- Integrated Oil Tank Structure: Specialized left and right gear oil tanks provide stable oil storage and buffering, matching the power end installation space perfectly.
- Quick-Connect Pipeline Joints: Standardized pipeline joints enable quick assembly and disassembly, improving pipeline replacement efficiency and reducing maintenance time.
- Anti-Falling Fastener Design: Locking nuts, cotter pins and high-strength bolts form a dual anti-loosening structure, avoiding fastener falling caused by vibration.
- Detachable Magnetic Filter: Independent magnetic block design allows regular cleaning and replacement without dismantling the entire lubrication system.
Applicable Working Conditions
All lubrication system parts adapt to various harsh oilfield operating scenarios matching the LSNOI 3NB-1600 mud pump:
- Long-Term Continuous Drilling: 24-hour uninterrupted mud pump operation, maintaining stable lubrication under high-load and high-friction conditions.
- Harsh On-Site Environments: Desert, mountain and cold region drilling platforms, adapting to large temperature differences, high dust and humid environments.
- High-Power Power End Operation: Matching 1600HP mud pump power end working pressure, bearing high-temperature and high-frequency friction heat dissipation requirements.
- Conventional Lubricating Oil Compatibility: Suitable for various special lubricating oils for drilling mud pumps, with strong oil corrosion resistance and aging resistance.
We supply the following spare parts:
| 107.11.30.00 Lubrication System for Power End | ||
| Item No. | Part No. | Description |
| 501 | GB32.1-88 | Head hole bolt M12x35 |
| 502 | Wire Φ 1.5 | |
| 503 | F3-42-80 | Joint body 16-1/2” |
| 504 | 107.11.30.01 | Oil pipe Φ 16×1.5 L=350 |
| 505 | 107.11.30.02 | Oil pipe Φ 16×1.5 L=750 |
| 506 | 107.11.31.00 | Left oil channel |
| 507 | GB5783-86 | Bolt M 12×40 |
| 508 | GB6170-86 | Nut M12 |
| 509 | 107.11.32.00 | Oil retainer groover |
| 510 | 107.11.33.00 | Right oil channel |
| 511 | 107.11.34.00 | Oil tank for gear (right) |
| 512 | 107.11.35.00 | Oil tank for gear (left) |
| 513 | F3-41-93 | Joint body 16-1/2” |
| 514 | GB5647-85 | Nut 16 |
| 515 | GB5646-85 | Pipe liner 16 |
| 516 | 107.11.36.00 | Oil trap |
| 517 | 107.04.30.04 | Plug |
| 518 | GB6170-86 | Nut M6 |
| 519 | 107.11.30.04 | Socket Φ 10×1 L=30 |
| 520 | 107.04.30.05 | Gasket |
| 521 | 107.04.30.06-1 | Magnetic block |
| 522 | 107.11.30.04 | Socket Φ 10×1 L=10 |
| 523 | 107.04.30.08 | Rod |
| 524 | GB91-86 | Cotter pin 2×12 |
On-site Fault Repair Cases
Case 1: Oil Leakage Caused by Loose Pipeline Joints
A drilling rig’s LS 3NB-1600 mud pump power end had obvious lubricating oil leakage at the pipeline joint, leading to gradual oil level drop. Long-term vibration caused the joint body and locking nut to loosen, damaging the sealing effect. Maintenance personnel tightened the joint nut, replaced the worn pipe liner, and re-fixed the pipeline, completely eliminating oil leakage after testing.
Case 2: Insufficient Lubrication Due to Blocked Magnetic Block
The mud pump power end appeared abnormal noise and temperature rise, and the lubricating oil pressure was unstable. A large amount of metal debris accumulated on the magnetic block blocked the oil passage, resulting in poor oil circulation. The crew removed the magnetic block, cleaned the adsorbed debris thoroughly, and reinstalled it, restoring normal lubricating oil flow and pressure.
Case 3: Pipeline Rupture Triggered Lubrication Failure
During long-term operation, the oil pipe of the lubrication system ruptured due to continuous vibration and friction, causing a large amount of lubricating oil loss and sudden insufficient lubrication. Workers replaced the damaged oil pipe with a new matched one, reinstalled the pipeline joints, and replenished lubricating oil, quickly restoring the normal operation of the lubrication system.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts fully compatible with LSNOI 3NB-1600 mud pump power end lubrication system? | Yes, all parts in this list are specially designed for the LSNOI Lanzhou LS 3NB-1600 mud pump power end lubrication system (107.11.30.00), matching OEM dimensions and installation standards perfectly, with no on-site modification required. |
| How often should the magnetic block be cleaned? | In normal drilling operation, clean the magnetic block every 7 working days; in high-load and severe wear working conditions, shorten the cleaning cycle to 3 days to avoid oil passage blockage. |
| What is the normal working oil pressure range of this lubrication system? | The normal stable working oil pressure of the LS 3NB-1600 mud pump power end lubrication system is 0.2-0.4MPa; abnormal pressure indicates blockage, leakage or component damage. |
Procurement Guidance
This LSNOI 3NB-1600 mud pump power end lubrication system parts list is a professional and reliable reference for oilfield equipment maintenance and spare parts procurement teams, providing clear and accurate part selection standards for routine maintenance, regular overhaul and emergency fault repair of the lubrication system. All supplied parts undergo strict quality inspection and dimensional verification, fully complying with API 7K industry standards and original equipment quality requirements, with stable sealing, vibration resistance and wear resistance performance.
