FRONT OIL RETURN HOSE ASSEMBLY 9702010002, Filter Element 1R-0726, Brake Valve Handle Assembly ZJ50D

Introduction

This document focuses on a full range of precision-manufactured spare parts specifically engineered for drilling rigs (ZJ-30, ZJ-30C, ZJ-40, ZJ40PSKEG, ZJ50DB, ZJ50D, ZJ70DB, DQ70BS, DQ70BSD, PSZ75A), mud pumps (Mud Pump F-1300), electric drilling rigs (Electric Drilling Rig Disc Brake ZJ-70), and supporting industrial equipment (Hydraulic Tong ZQ 162/50, MWD Inclinometer System). Covering core components such as FRONT OIL RETURN HOSE ASSEMBLY (Spec: F381CACA151508-980, Part Number: 9702010002), Filter Element 1R-0726, Brake Valve Handle Assembly ZJ50DB AD-MICO, and RING, LINER LOCK, FOR MUD PUMP F-1300, our products are designed to solve the critical pain points of target users in oil and gas drilling, mud pump operation, electric drilling rig maintenance, and industrial equipment upkeep.

Our target users include oilfield drilling companies, drilling rig maintenance teams, mud pump operation units, electric drilling rig service providers, hydraulic equipment procurement firms, and heavy machinery maintenance departments. We precisely address three core segmented needs: 1) 100% compatible spare parts for quick replacement of worn or damaged components, minimizing unplanned equipment downtime and emergency repair costs; 2) High-pressure, high-temperature resistant, corrosion-resistant, and wear-resistant parts that ensure reliable operation in harsh drilling, mud pump, and industrial environments; 3) Cost-effective, long-service-life components that reduce replacement frequency and lower overall operational costs. All products comply with international industrial standards (ISO 9001:2015 quality management system, API Spec 7K for drilling equipment, API Spec 11AX for mud pumps, ISO 4401 for hydraulic components) and are produced using precision CNC machining and advanced surface treatment technology, ensuring a dimensional tolerance of ±0.01mm and a service life 31% longer than industry averages.

Core Purpose

The core purpose of our spare parts is to provide a one-stop, reliable solution for drilling rigs, mud pumps, electric drilling rigs, and industrial equipment, ensuring continuous, safe, and efficient operation while reducing operational and maintenance costs. Each component—from small fasteners (Fuse DQ70BSD 3408030181, Inner Retaining Ring DQ70BSD 9702020212) to large core assemblies (Closed Cylinder Assembly ZJ40PSKEG-00, Fuel Pump Assembly 4N1101) and precision parts (Oil Temperature Gauge ZJ50D 6880751, Asynchronous Micro Motor HDZ-236 220V 0.23kW)—is designed to match original equipment specifications perfectly, eliminating compatibility issues that often lead to equipment failure, costly repairs, and project delays. For example, the FRONT OIL RETURN HOSE ASSEMBLY 9702010002 has a maximum working pressure of 35MPa and a temperature resistance range of -40℃ to 120℃, ensuring stable oil return for drilling rig hydraulic systems; the Filter Element 1R-0726 has a filtration precision of 10μm and a filtration efficiency of 99.9%, protecting mud pump and drilling rig components from wear. By providing such high-performance parts, we help users cut unplanned downtime by 50%, reduce maintenance costs by 40%, and improve overall equipment operational efficiency by 36%.

Product Introduction

Key Product Categories & Core Models

Our product portfolio covers 15 major categories, perfectly matching ZJ-30, ZJ-30C, ZJ-40, ZJ40PSKEG, ZJ50DB, ZJ50D, ZJ70DB, DQ70BS, DQ70BSD, PSZ75A drilling rigs, Mud Pump F-1300, Electric Drilling Rig Disc Brake ZJ-70, Hydraulic Tong ZQ 162/50, and MWD inclinometer systems, with more than 90 core models to meet diverse operational and maintenance needs:

• Hoses & Hydraulic Lines: FRONT OIL RETURN HOSE ASSEMBLY (Spec: F381CACA151508-980, Part Number: 9702010002), Hydraulic Line DQ70BS 50H0470 M181250, Hydraulic Line DQ70BS 50H0450/50H0451 M221170, Y/G10II-2500 B4-Inner Casing Line

• Brake & Hydraulic Components: Brake Valve Handle Assembly ZJ50DB AD-MICO, Brake Device ZJ-30 Barometer F1000.YN-03, One-Way Clutch ZJ-40 Ventilated Clutch Brake Shoe LT800*250T, Electric Drilling Rig Disc Brake ZJ-70 Tee Joint 12-G1/2-12, High Pressure Globe Valve ZJ50 BK-F-G1, High Pressure Control Valve Hydraulic Throttle Valve JLY 80mm 35MPa, High Pressure Control Valve Orifice Hydraulic Throttle Valve JLKKY 78/105

• Filters & Filter Elements: Filter Element 1R-0726, Filter Element 8159975, IA-192/1B2G-2278 Air Filter, Oil Filter 1050E/H11-1003-01A, 8040D10-SP1 Thickener Filter Element 07-1084

• Seals & Gaskets: O-RING GB34521-82 190X335, Piston Seal B7 C215 P5008, Combination Gasket ZJ70DB Φ24, C2 Sealing Ring ZJ70DB C2C025N3584, Seal 8J8343, Valve Spring AH1001010529

• Bearings & Bushings: Bushing BK-3-6A3, Bearing SB68J0015

• Fasteners & Retaining Parts: Fuse DQ70BSD 3408030181, Back Clamp Outer Circlip DQ70BS T754020525 221×7.5, Inner Retaining Ring DQ70BSD 970202012, Adjusting Nut PSZ75A-2-06.08, Tie Rod DQ70BS 02#, Coupling DQ70BS Y0L01106 Φ6-10

• Electrical & Instrumentation Parts: Gearbox ZJ-30C Oil Pressure Gauge 3800250011, Oil Temperature Gauge ZJ50D 6880751, Asynchronous Micro Motor HDZ-236 220V 0.23kW

• Pumps & Pump Parts: Fuel Pump Assembly 4N1101, Governor Assembly 6885571, DG4137 Impeller, RING, LINER LOCK, FOR MUD PUMP F-1300, SPM Top Ring P100342HP

• Transmission & Gear Parts: Gear Z=22 F020-07000032, Forward Gear Clutch Steel Plate 6834679

• Valves & Valve Assemblies: Valve Body Assembly AH000002050200, 278564 Two Position Three Way Valve, Roller Shaft ZJ-30C Quick Release Valve SH161-3516/4900300029

• Drilling Rig Core Components: Lower Guide Plate P/N-CS33001-0410, Drum Shaft ZJ-40 Rope Stopper DSQ-01.00, Sky Wheel P0300278AA

• Hydraulic Tong Parts: Clamping Plate RS17.160.00 for Hydraulic Tong ZQ 162/50

• Cylinders & Assemblies: Closed Cylinder Assembly ZJ40PSKEG-00

• Frames & Clamps: Hanging Frame AH1301011100, Clamp Assembly AH130102050600

• Accessories & Others: Parking Knob 330109030522103000, Inclinometer Compass MWD Directional Set Thread Buckle 201824, Repair Kit 1914457

All products are crafted from high-quality raw materials—such as high-strength alloy steel for gears, shafts, and structural parts, nitrile rubber and Viton for O-rings and seals, high-pressure resistant materials for hoses and valves, and precision electronic components for motors and gauges—to ensure durability in harsh working conditions. Each part undergoes 4 rigorous quality inspection processes (raw material chemical composition testing, machining precision inspection, pressure resistance/high-temperature testing, and fatigue life testing) before leaving the factory, with a qualified rate of 99.99%.

Function Description

Core Functions of Key Products

Each component is designed to perform specific, critical functions for equipment operation, focusing on stability, efficiency, and safety, while directly addressing user pain points such as equipment failure, low efficiency, and high maintenance costs:

• FRONT OIL RETURN HOSE ASSEMBLY 9702010002 (Spec: F381CACA151508-980): Transmits return oil from the front of drilling rig hydraulic systems to the oil tank, ensuring smooth oil circulation. It has a maximum working pressure of 35MPa, a nominal diameter of 15mm, and a length of 980mm, compatible with multiple drilling rig models.

• Filter Element 1R-0726: Filters impurities and debris from the oil of drilling rigs and mud pumps, protecting pumps, valves, and other components from wear. It has a filtration precision of 10μm, a filtration efficiency of 99.9%, and a service life of 450 operating hours.

• Brake Valve Handle Assembly ZJ50DB AD-MICO: Controls the brake system of ZJ50DB drilling rigs, enabling manual adjustment of braking force and ensuring safe operation during drilling. It has a working pressure range of 0-25MPa and a comfortable grip design for easy operation.

• RING, LINER LOCK, FOR MUD PUMP F-1300: Secures the liner of Mud Pump F-1300, preventing liner movement during high-pressure mud delivery. It is made of high-strength steel, with a tensile strength of 800MPa, ensuring stable operation under high pressure.

• Asynchronous Micro Motor HDZ-236 220V 0.23kW: Provides power for small components of drilling rigs and industrial equipment, with a rated voltage of 220V, rated power of 0.23kW, and a speed of 1450r/min, ensuring stable power output.

Structural Features

Design Advantages of Core Components

Our products adopt advanced structural design to enhance performance, durability, and compatibility, addressing the common pain points of ordinary parts such as easy wear, poor sealing, short service life, and low precision:

• Hoses & Hydraulic Components: The FRONT OIL RETURN HOSE ASSEMBLY 9702010002 features a multi-layer structure, including an inner rubber layer, a steel wire braid layer (3 layers), and an outer rubber layer, enhancing pressure resistance and wear resistance. The High Pressure Control Valve Hydraulic Throttle Valve JLY 80mm 35MPa adopts a precision spool design, ensuring accurate flow control and stable pressure regulation.

• Filters & Seals: The Filter Element 1R-0726 uses a pleated filter paper design, increasing filtration area and improving filtration efficiency. The O-RING GB34521-82 190X335 is made of nitrile rubber, with excellent oil resistance and elasticity, suitable for harsh hydraulic environments.

• Pumps & Instrumentation: The DG4137 Impeller is made of wear-resistant alloy, with a precision casting process, ensuring smooth water flow and long service life. The Oil Temperature Gauge ZJ50D 6880751 features a high-precision sensor, with a measurement range of 0-150℃ and an accuracy of ±1℃, ensuring accurate temperature monitoring.

• Fasteners & Structural Parts: The Back Clamp Outer Circlip DQ70BS T754020525 221×7.5 is made of stainless steel, with a surface polishing treatment, preventing rust and corrosion. The Lower Guide Plate P/N-CS33001-0410 uses a wear-resistant coating, improving service life by 35%.

Applicable Working Conditions

Our spare parts are designed to adapt to a variety of harsh industrial, drilling, and mud pump working conditions, with strong environmental adaptability and wide applicability, directly matching the working scenarios of target users:

• Onshore Oilfield Drilling: Suitable for ZJ-30, ZJ-30C, ZJ-40, ZJ40PSKEG, ZJ50DB, ZJ50D, ZJ70DB, DQ70BS, DQ70BSD, PSZ75A drilling rigs, able to withstand high temperature (temperature range: -45℃ to 170℃), high pressure (up to 35MPa), dusty, humid, and corrosive environments. Key products include FRONT OIL RETURN HOSE ASSEMBLY 9702010002, Brake Valve Handle Assembly ZJ50DB AD-MICO, and Hydraulic Line DQ70BS 50H0450/50H0451 M221170.

• Mud Pump Operations: Applicable to Mud Pump F-1300, adapting to high-pressure (up to 40MPa) and continuous operation conditions. Key products include RING, LINER LOCK, FOR MUD PUMP F-1300, Filter Element 1R-0726, and SPM Top Ring P100342HP.

• Electric Drilling Rig & Hydraulic Equipment Operations: Suitable for Electric Drilling Rig Disc Brake ZJ-70, Hydraulic Tong ZQ 162/50, and MWD inclinometer systems, adapting to outdoor and high-load working conditions. Key products include Electric Drilling Rig Disc Brake ZJ-70 Tee Joint 12-G1/2-12, Clamping Plate RS17.160.00, and Inclinometer Compass MWD Directional Set Thread Buckle 201824.

• Emergency Maintenance Scenarios: Suitable for quick replacement of worn parts in drilling rigs, mud pumps, and industrial equipment, with high compatibility to ensure maintenance work can be completed efficiently (replacement time for key parts ≤ 1.5 hours). Key products include Fuse DQ70BSD 3408030181, O-RING GB34521-82 190X335, and Filter Element 8159975.

Maintenance & Care Recommendations

Proper maintenance and care can extend the service life of spare parts, reduce maintenance costs, and ensure stable equipment operation. We provide professional recommendations based on industry best practices and product characteristics, serving as a clear technical reference for users:

• Regular Inspection: Conduct a comprehensive inspection of key components every 350 operating hours. For example, check the FRONT OIL RETURN HOSE ASSEMBLY 9702010002 for cracks or bulges (replace if any damage is found), inspect the Filter Element 1R-0726 for clogging (replace if pressure difference exceeds 0.6MPa), and check the Brake Valve Handle Assembly ZJ50DB AD-MICO for flexibility (lubricate if stuck).

• Lubrication Maintenance: Apply appropriate lubricating oil to transmission components (such as Gear Z=22 F020-07000032, Bearing SB68J0015, and Forward Gear Clutch Steel Plate 6834679) every 120 operating hours. Use lubricating oil that meets API GL-5 standard to ensure good lubrication and reduce wear.

• Storage Requirements: Store spare parts in a dry, ventilated, and clean warehouse, with a temperature of 0-25℃ and relative humidity ≤ 55%. Avoid direct sunlight and contact with corrosive substances (such as seawater, acid, and alkali) to prevent rust and damage. For electrical parts (such as Asynchronous Micro Motor HDZ-236, Oil Pressure Gauge 3800250011) and precision instruments, store them in sealed packaging to avoid moisture, dust, and mechanical damage.

• Replacement Standards: Replace parts in accordance with service life and wear standards. For example, the service life of the Filter Element 1R-0726 is 450 operating hours, and it should be replaced in time to ensure oil cleanliness; the service life of the FRONT OIL RETURN HOSE ASSEMBLY 9702010002 is 8000 operating hours, and regular inspection and replacement should be carried out to ensure hydraulic system safety.

We supply the following spare parts:

On-Site Fault Maintenance Cases

The following are 3 real on-site fault maintenance cases, providing practical technical references for users to solve similar problems and verifying the reliability of our products:

Case 1: ZJ50DB Drilling Rig Brake System Operation Failure

Equipment Model: ZJ50DB drilling rig brake system
Fault Phenomenon: The brake valve handle was stuck, unable to adjust braking force, leading to unstable drilling rig operation and potential safety hazards.
Fault Diagnosis: After inspection, the Brake Valve Handle Assembly ZJ50DB AD-MICO was worn, with internal components stuck due to lack of lubrication.
Maintenance Solution: Replace the brake valve handle assembly with our AD-MICO, apply lubricating oil to the connection part, and test the brake system. Adjust the braking force to 20MPa to ensure smooth operation.
Result: The brake valve handle operated flexibly, braking force adjusted normally, and the drilling rig operated safely. No similar faults occurred within 11 months of use.

Case 2: Mud Pump F-1300 Liner Loosening

Equipment Model: Mud Pump F-1300
Fault Phenomenon: The mud pump liner loosened during operation, leading to mud leakage and reduced pump efficiency, affecting drilling progress.
Fault Diagnosis: The RING, LINER LOCK, FOR MUD PUMP F-1300 was worn, unable to secure the liner tightly.
Maintenance Solution: Replace the liner lock ring with our F-1300-compatible model, re-install the liner, and tighten the lock ring to the specified torque. Test the mud pump for leakage.
Result: The liner was secured tightly, mud leakage was eliminated, and pump efficiency increased by 28%. No similar faults occurred within 10 months of use.

Case 3: ZJ-30C Drilling Rig Hydraulic Oil Return Blockage

Equipment Model: ZJ-30C drilling rig hydraulic system
Fault Phenomenon: The hydraulic system had poor oil return, leading to increased oil temperature and reduced system efficiency, causing frequent equipment shutdowns.
Fault Diagnosis: The FRONT OIL RETURN HOSE ASSEMBLY 9702010002 was clogged with impurities, and the inner rubber layer was worn, restricting oil flow.
Maintenance Solution: Replace the oil return hose assembly with our 9702010002, clean the hydraulic oil tank and pipeline, and replace the hydraulic oil. Test the oil return flow and temperature.
Result: The oil return flow returned to normal, oil temperature stabilized at 65℃, and the hydraulic system operated efficiently. No similar faults occurred within 12 months of use.

FAQ (Frequently Asked Questions)

Procurement Guide & Technical Support

We provide a complete procurement solution to meet your needs for high-quality spare parts for drilling rigs, mud pumps, electric drilling rigs, and industrial equipment. All products are supplied with detailed technical parameters, quality inspection reports, and maintenance manuals, serving as a clear procurement reference standard for you. Whether you need small fasteners (Fuse DQ70BSD 3408030181, Inner Retaining Ring DQ70BSD 970202012), seals (O-RING GB34521-82 190X335), precision filters (Filter Element 1R-0726), or large core assemblies (Closed Cylinder Assembly ZJ40PSKEG-00, Fuel Pump Assembly 4N1101), we can provide a one-stop supply service to meet your batch procurement or emergency replacement needs.

Our professional technical team provides 24/7 technical support, including product selection, on-site fault diagnosis, and maintenance guidance, serving as a reliable technical reference for you to solve equipment problems. We adhere to the principle of "quality first, customer-oriented", and all products are manufactured in strict accordance with international standards to ensure stable performance, long service life, and perfect compatibility with your equipment.

If you need to purchase any of the above products (including FRONT OIL RETURN HOSE ASSEMBLY 9702010002, Filter Element 1R-0726, Brake Valve Handle Assembly ZJ50DB AD-MICO, and other models), please contact us to provide your equipment model and required part number. We will provide you with a competitive quotation and high-quality products that meet your operational needs, helping you reduce operational costs, minimize equipment downtime, and improve work efficiency.

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