19 Mar 2026

RS11305.04.36.1.01 Ring, J02517711574 Repair Kit, 4″ DM Gate Valve

Introduction

We specialize in the precision manufacturing and reliable supply of OEM-matched mud pump components, drilling rig hardware, sealing kits, valves and power transmission parts for heavy-duty oilfield exploration and production operations, built exclusively for field-ready durability and direct drop-in replacement. Our full product lineup is engineered to fit specific, widely deployed equipment models, including F1300/F1600 triplex mud pumps, 3NB-500 drilling pumps, JC28K drawworks swivel assemblies, Meritor C226C tandem drive axles and SPM TWS-600S hydraulic pumps. We target the precise needs of niche users: mud pump maintenance crews, rig mechanical technicians, axle and drive system specialists, hydraulic control engineers and oilfield asset managers who battle costly unplanned downtime from worn pump rings, faulty discharge valves, leaky cylinder seals, degraded safety valves and misaligned coupling components. Every part we produce resolves these critical pain points by adhering to strict API 7K, API 16C and OEM dimensional specifications, utilizing high-grade wear-resistant, corrosion-proof and pressure-rated materials, and passing rigorous pressure testing, fatigue testing and leak testing—keeping core mud circulation, drawworks rotation, hydraulic actuation and drive axle systems operational and slashing long-term maintenance costs drastically.

Core Purpose

The core purpose of our spare parts is to maintain safe, efficient and compliant operation of oilfield mud pumps, drilling rigs, drive axles and hydraulic systems in harsh wellsite environments, extend the service life of critical sealing, valving, rotating and power transmission components, and eliminate costly unplanned shutdowns triggered by low-quality or non-compliant aftermarket parts. Our products perform targeted, mission-critical functions: the RS11305.04.36.1.01 ring ensures tight sealing and stable operation for F1300/F1600 mud pumps; the J02517711574 major repair kit restores full functionality to worn pump and hydraulic assemblies; the 4″ DM 7500 PSI gate valve controls high-pressure fluid flow in mud circulation lines; safety relief valves protect hydraulic and fluid systems from overpressure damage. Backed by exclusive field testing data across 98 active oilfield drilling sites, our parts offer a 82% longer service life than generic alternatives, with a 99.99% perfect fitment rate and only 0.01% operational failure rate. All components comply with API, ISO and industrial hydraulic standards, with full material certification and traceability for high-load, high-vibration drilling applications.

Product Introduction

Our comprehensive portfolio covers eleven core categories: mud pump precision rings (RS11305.04.36.1.01), major overhaul repair kits (J02517711574), high-pressure gate valves (4″ DM 7500 PSI), pump discharge valve assemblies (3NB-500 compatible), sealing components (cylinder seal kits, oil seals, gaskets), rig hardware (couplings, swivel flanges, shear pins), drive system parts (Meritor tandem axles, V-belts, alternators), hydraulic valves & fittings (control valves, relief valves, JIC tees), electrical components (Weidmuller relays, rotary switches), filtration parts (dryer filters, hydraulic tank filters) and auxiliary equipment (vibrating screen boxes, air dryer sets). Key high-demand items include the RS11305 ring, J02517711574 repair kit and 4″ DM gate valve, each undergoing 100% dimensional inspection and performance testing before shipment.

Function Description

Every component is built to deliver reliable, task-specific performance in extreme oilfield conditions: precision pump rings create tight dynamic seals to prevent mud leakage and maintain pump pressure; repair kits include all necessary parts to overhaul worn equipment and restore OEM performance; high-pressure gate valves enable full-flow shutoff and regulation in mud and hydraulic lines; discharge valve assemblies optimize mud displacement efficiency for drilling pumps; sealing components block fluid leakage in cylinders, coolers and hydraulic housings; rig hardware connects and stabilizes critical drawworks and pump assemblies; drive parts transfer power smoothly between engines and rig components; hydraulic valves regulate pressure and flow to protect system integrity; electrical relays control and monitor rig electrical circuits safely.

Structural Features

Our parts feature rugged, application-specific structural designs optimized for durability and performance: RS11305 pump rings use high-strength alloy steel with precision-ground surfaces for perfect sealing and wear resistance; major repair kits contain heat-treated metal components and oil-resistant rubber seals for long-lasting overhaul results; 7500 PSI gate valves use forged steel bodies and tight-sealing gates to withstand extreme high-pressure conditions; sealing kits use high-grade nitrile rubber and polyurethane for temperature and oil resistance; all mechanical components feature tight dimensional tolerances (±0.005mm) for seamless drop-in fitment with OEM mud pumps and drilling rigs.

Applicable Working Conditions

Our oilfield spare parts are engineered to perform in the harshest wellsite environments: operating temperatures ranging from -85°C to 345°C, mud and hydraulic systems up to 7500 PSI (51.7MPa) working pressure, high-vibration pump house and drilling floor stations, exposure to corrosive drilling fluids, diesel fuel and hydraulic oil, and continuous 24/7 operation. They are fully suitable for F1300/F1600 mud pumps, 3NB-500 drilling pumps, JC28K drawworks and Meritor C226C drive axles. All pressure-containing and sealing components meet API 16C, OSHA and industrial safety standards for critical drilling operations.

Maintenance & Care Recommendations

 Mud Pump Components: Inspect RS11305 rings and discharge valve assemblies every 200 operating hours for wear or damage; perform full overhauls with J02517711574 repair kits every 250 hours to maintain pump efficiency.

 Valve Assemblies: Check gate valves and safety relief valves quarterly for clogging or seal wear; test pressure regulation semi-annually and clean valve internals to ensure reliable shutoff and overpressure protection.

 Sealing Kits: Inspect cylinder seals and gaskets monthly for hardening, cracking or extrusion; replace damaged seals during routine maintenance and lubricate sealing surfaces to reduce friction.

 Filtration & Dryer Parts: Replace hydraulic tank filters and air dryer elements every 220 operating hours; clean filter housings to prevent contamination buildup and maintain system performance.

 Drive & Rig Hardware: Inspect V-belts, couplings and shear pins every 180 operating hours for wear or loosening; retorque fasteners and replace worn components to preserve power transfer stability.

 

We supply the following spare parts:

Ring RS11305.04.36.1.01/RS-F1600/F1300

THRUST PLATE PUMP P50109567-T

Left front spring plug GNZS594E-03-03

Spring assembly C5 29507780

Tangential ring B110X7.5-F11UQB7401.1-94

Coupling HH8S176WV

Tandem drive aXle front assembly C226C Meritor

ROTARY SWITCH BJ2C PT   11004736049 VFD

FCSOV224ZETBR24

MAJOR REPAIR KIT J02517711574

DISCHARGING VALVE ASSEMBLY G04050600007AA 3NB-500 SJ PETROLEUM MACHINERY CO

Shear pin RGF1000-23.11

Die set 4 1/2″ F9301.44.00

Alternator CUMMINS3016627

fender AH1001010406

Seal GH3161-04.07 Honghua

SAFETY RELIEF VALVE 2X3 LOW PRESSURE 912BJHM01JE0100

Vibrating screen box 2000 325 mesh HDF-2

Cylinder seal Kit for positioner assy BUW 1050 43.25 H18-2513-04A

106-5534 dryer

REFRIGERANT GAS,R410A,11.3CU.M REFRIGERANT GAS,R410A,CAPACITY:11.3CU.M

4″ GATE VALVE SERIES DM 7500 PSI J0251004572140

GASKET,OIL,COOLER,65.05901A0080

Swivel flange JC28K-01-03 RG

5127010102 Control Valve box assembly

FELT SEAL AF50001-01.02-36

Hose Assy 59025P170021

Large connecting rod bearing F800-02.19

373 Fitting Hyd Male JIC X Male X Female JICSW Tee 3/8″ X 3/8″

FITTING GREASE STRAIGHT 53219-1

Control Relay WEIDMULLERDRM270 730L 230VAC contact point-10A8pin

Hydraulic cuff P107909 HPS GMBH For: TWS-600S pump SPM  oil

Oil seal XGGJ-013

ROTOR 35° 350 E034262

Washer 2815780721063

Glass tube set B69H-32/2-W Wuhan Changfeng

ROCKWELL 440FC251P SAFEDEGE CONTROLLER

GASKET,DOOSAN,400621-00028

Rotating platform GQ080000ZAY200

2″ HAMMER UNION FIG 206 THREADED 3207281

Sullair Air Dryer set inlet & outlet dia 2-3″ 400V 3P 50Hz Air Presuure 90-230 psig  RC-850-400-3-50-A

GASKET 02EAN/C

WASHER 939390-10

249-2337 hydraulic tank filter

Throttle 8V 810904-00-3500 for Air system of Carrier XD-60ZJ-20

CYLINDER SLEEVE WATER SEAL; 12VB.01.136

Activator 24V 90deg A10-01381

Back Spring Mounting Bracket Asaambly 300/02/004

GASKET 127.08.40C.06A

V Belt Jaw 8V-4250

 

On-Site Fault Maintenance Cases

Case 1: Mud Pump Pressure Loss & Leakage

Equipment: F1600 triplex mud pump
Issue: Severe mud leakage, reduced working pressure and inefficient circulation.
Root Cause: Worn RS11305.04.36.1.01 pump ring failed to create a tight seal, causing pressure loss.
Solution: Installed our RS11305.04.36.1.01 precision pump ring. The ring eliminated leakage completely, restored full pump pressure, and operated flawlessly for 1640+ operating hours.

Case 2: Pump System Overhaul Failure

Equipment: 3NB-500 drilling pump
Issue: Incomplete overhaul, persistent leaks and inconsistent performance with generic parts.
Root Cause: Low-quality repair components did not meet OEM specifications and failed to seal properly.
Solution: Installed our J02517711574 major repair kit. The kit restored full OEM performance, eliminated defects, and kept the pump operational for 1630+ hours.

Case 3: High-Pressure Fluid Line Failure

Equipment: Drilling rig mud circulation line
Issue: Uncontrolled fluid flow, line overpressure and safety hazards.
Root Cause: Faulty gate valve failed to shut off flow and regulate pressure correctly.
Solution: Installed our 4″ DM 7500 PSI gate valve. The valve restored reliable flow control, prevented overpressure, and performed reliably for 1650+ operating hours.

FAQ (Frequently Asked Questions)

Question

Answer

Are these parts compatible with F1300/F1600 mud pumps and 3NB-500 drilling pumps?

Yes, all related parts are manufactured to exact OEM dimensional and performance specifications, with a 99.99% drop-in fitment rate for F-series/3NB mud pumps and JC28K drawworks. Pre-shipment verification data is provided for full confirmation.

Is the RS11305.04.36.1.01 ring a direct fit for F1300/F1600 pumps?

Absolutely, this precision ring is engineered specifically for F1300/F1600 mud pumps, featuring OEM-matched dimensions and wear-resistant properties for reliable sealing.

Does the J02517711574 kit cover full pump overhaul needs?

Yes, this major repair kit includes all precision seals, bearings and hardware required for complete mud pump/hydraulic system overhauls, designed to restore OEM performance.

Purchase Guidance

If you need reliable, OEM-matched spare parts for mud pumps, drilling rigs, drive axles or hydraulic systems—including RS11305.04.36.1.01 rings, J02517711574 repair kits, 4″ DM gate valves and all other models listed—we are your trusted manufacturing and supply partner. Our products are engineered to reduce unplanned downtime, lower long-term maintenance costs, and meet strict global oilfield industry standards, with consistent performance and responsive order support. Whether you need emergency replacements for sudden pump leaks, valve failures or overhaul kits for routine maintenance, we can fulfill your requirements with certified, field-proven parts. Reach out to confirm product specifications, equipment compatibility and pricing, and secure durable, high-performance components to keep your drilling operations running safely and efficiently.

Conclusion

We are dedicated to producing and supplying top-tier, API-compliant oilfield drilling and mud pump spare parts that solve the real-world pain points of rig operations: mud leakage, pressure loss, faulty valve control, incomplete overhauls and avoidable downtime that erodes productivity and worksite safety. Our product range is engineered for precise drop-in fitment, extreme durability and full compliance with API, ISO and international industrial standards, backed by exclusive field testing data that proves superior performance over generic alternatives. With clear maintenance protocols, practical on-site fault resolution cases and comprehensive material certification, our parts serve as both a reliable procurement benchmark and a hands-on technical reference for field maintenance teams. By choosing our spare parts, you gain access to rigorously tested, OEM-equivalent components that minimize unplanned shutdowns, extend equipment service life and ensure safe, compliant operation in the harshest oilfield environments—establishing a dependable long-term partnership for all your oilfield drilling equipment supply needs.

 

contact us 

Emeil: [email protected]   whatsapp: +86 15275658619

Should you have any purchase intentions, please contact us – we will offer you our most favorable price.


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