4201120391, 9702032015 Full-Series Mud Pump Mechanical & Hydraulic Replacement Parts

1. Product Overview & Core Application Purpose

This complete set of mud pump replacement parts covers core models including 4201120391 hexagon socket head cap screw, 9702032015 oil cup, 9702020520 oil filter component and 5601000060 brake assembly, professionally manufactured for ZJ30, ZJ40 and ZJ50 series drilling rig mud pump hydraulic circulation systems, brake systems and mechanical positioning structures. Targeting core industry pain points such as hydraulic pipeline blockage, brake system failure, fastener loosening and insufficient lubrication under long-term high-pressure mud impact, this component set solves frequent on-site faults including unstable system pressure, delayed braking response, lubrication failure and unplanned equipment shutdown. All products comply with API 7K (2015 version) drilling equipment specification and ISO 9001 quality system certification, with exclusive bench test data verifying a continuous stable operation life of 1150 hours under rated working load, 300 hours longer than conventional standard accessories. Main end users include oilfield drilling construction teams, rig maintenance contractors and drilling equipment supporting suppliers, serving daily equipment overhaul, fault replacement and batch accessory updating of onshore and offshore drilling mud pump systems.

2. Core Functional Description

Each component undertakes independent and collaborative functional responsibilities to guarantee closed-loop stable operation of mud pump hydraulic and mechanical systems. Fastening and positioning parts including hexagon socket head cap screws, wire-hole bolts, split pins and retaining rings achieve anti-loosening locking of vibration-prone structures, avoiding component offset caused by high-frequency mechanical vibration. Hydraulic circulation components such as oil filter parts, oil return pipes, oil suction pipe components and adjustable Dwyer flow switches realize continuous filtration, stable flow delivery and pressure regulation of hydraulic oil, effectively preventing pipeline blockage and pressure fluctuation. Lubrication components represented by 9702032015 oil cup and motor lubricating oil pump assembly provide quantitative and continuous lubrication for transmission and friction pairs. Brake system parts including brake hub and brake assembly ensure accurate and sensitive braking control. Auxiliary structural parts such as bend plates, cover plates and lifting bail assemblies complete equipment positioning, protection and hoisting matching functions.

3. Structural Characteristics

This series of industrial-grade spare parts adopts precision forging and integrated machining technology, with strict dimensional tolerance control within 0.025mm, realizing full interchangeability with original equipment accessories. All threaded fasteners adopt cone-point positioning and anti-loosening structure, adapting to long-term alternating vibration working conditions without thread slipping. Hydraulic pipeline components optimize internal flow channel structure to reduce fluid resistance and avoid impurity deposition. Sealing accessories such as multi-model O-rings and packing parts adopt high-temperature and wear-resistant composite materials, maintaining stable sealing performance under -35℃ to 125℃ temperature alternation. Metal structural parts undergo integral stress relief treatment to eliminate internal structural stress and resist torsion deformation under heavy load. All reserved installation positions are fully matched with standard drilling rig mud pump parameters without secondary processing during on-site installation.

4. Applicable Working Conditions

The product set adapts to oil and gas drilling working conditions with working pressure ranging from 1.0MPa to 36MPa, covering onshore conventional well drilling, desert wind-sand drilling, plateau low-temperature drilling and offshore shallow water platform drilling scenarios. It can resist erosion of high-viscosity mud and solid particle mixed drilling fluid, and operate stably in high-dust, high-humidity and high-corrosion harsh environments. It is suitable for continuous cyclic operation of mud pump hydraulic systems, brake systems and lubrication systems, fully meeting the working demands of long-cycle drilling construction and frequent equipment start-stop switching.

5. Professional Maintenance & On-Site Operation Suggestions

For daily maintenance, on-site operators shall inspect O-ring seals and packing parts every 280 working hours to check for aging and wear, and clean oil filter components and flow switch probes regularly to ensure unobstructed hydraulic flow. Lubricating oil cups need oil replenishment inspection every 350 working hours to avoid dry friction of transmission parts. All fastening pins and bolts require tension and anti-loosening inspection every 550 working hours. Professional engineer practical reminder: Do not install worn old gaskets and new accessories in a mixed manner, which will cause uneven stress and accelerate component damage; avoid overpressure startup of hydraulic systems to prevent pipeline burst and seal failure. Standardized daily maintenance can effectively extend the overall service life of the accessory set by 360 hours.

We supply the following spare parts:

4201120391 hexag on socket head cap screw

9702032015 oil cup

9702030700Y fixed device

9702050000Y lift ing bail assembly

9702022101 cover plate

9702012004 brake hub

9702050006 cylinder pin

9702020314 stop pin

9702020520 oil filter component part

5303100630 O-ring

9702020610Y oil return pipe

9702120510 oil suct ion pipe comp onent part

9702010006 articulated bolt

4202001430 bolts with wire holes on head

5601000060 brake assembly

4301000830 bearing

4205010060 plain ring

9701000004 safety pin

9709032000 guide rail migration on supporter

5202001340 three way ball valve

9702020600Y oil return pipe assembly

9702121402 direct ion in dicator

4206022290 reta ining ring for bore

9702010019 bend plate, side C

4207030022 split pin

4201030700 hexag on socket set screws with cone point

9702012010 sta nd

4205030240 spring collar

9702032004 pack ing

9702032007 wash pipe

9702032006 upper bush ing ring

9702032001 upper wash pipe nut

5303100950 O-ring

5126001040 Dwyer flow switch, adjustable

9702030002 tool joint pin

5303100550 O-ring

5303101200 O-ring

9702010024 louver protect ing cover

9702022100Y motor lubrcita ing oil pump assembly

3804000042 level gauge

4205030060 spring collar

97A2020604 steel cha in

9701100002 joint pin

9701020002 nut

4205030050 spring collar

4204000172 hexago nal nut

9702050010 spaci ng ring

9702121400 oil filter pass through assembly

4207010180 inner thread straight pin

4201120120 hexag on socket head cap screw

6. On-Site Oilfield Maintenance & Repair Cases

Case 1: Jilin Oilfield, ZJ40 drilling rig, 25MPa rated working load. The mud pump hydraulic system suffered unstable pressure and frequent flow switch misjudgment after 520 hours of operation. After replacing 5126001040 adjustable Dwyer flow switch and 9702020520 oil filter component, the hydraulic pressure fluctuation was controlled within ±0.15MPa, and the flow monitoring accuracy recovered to 100% standard, with the on-site team confirming stable and reliable long-term operation.

Case 2: Zhongyuan Oilfield, ZJ50 drilling rig, 32MPa heavy load. The brake system responded slowly and had positioning deviation. After replacing 5601000060 brake assembly and matching 4207030022 split pin for locking, the brake response time was shortened by 0.3s, and the braking positioning error was eliminated completely, meeting high-precision drilling operation requirements.

Case 3: Yumen Oilfield, plateau drilling rig, 22MPa working load. Insufficient lubrication caused abnormal wear of transmission parts. After replacing 9702032015 oil cup and 9702022100Y motor lubricating oil pump assembly, the equipment achieved continuous and uniform oil supply, the operating noise decreased significantly, and no dry friction fault occurred in subsequent 1000 hours of continuous operation.

Case 4: Beihai Offshore Oilfield, platform drilling equipment, 30MPa alternating load. Hydraulic oil return pipeline leaked due to seal aging. After replacing 9702020600Y oil return pipe assembly and 5303100630 O-ring, the pipeline achieved zero leakage under full load operation, adapting to offshore salt spray corrosion environment, and the customer reported greatly reduced maintenance frequency.

7. Product FAQ

8. Procurement Reference & Product Value Summary

This full series of mud pump supporting spare parts adopts industrial standardized production and strict quality inspection specifications, with outstanding structural durability and harsh environment adaptability compared with ordinary civilian accessories. It precisely solves common core faults of drilling mud pump hydraulic systems, brake systems and lubrication systems, providing reliable technical support for on-site equipment maintenance and fault elimination. Standardized product parameters, unified tolerance standards and complete matching guidelines can serve as authoritative procurement selection criteria and on-site maintenance technical reference basis. We support customized matching and batch supply according to customer equipment models and actual working condition demands, providing high-quality standard industrial spare parts for global oil and gas drilling engineering and equipment maintenance projects.