QDT Inclinometer, GP19256 Drill Bit, ZJ70DB Winch Brake

Introduction: Precision Parts for Oilfield & Boiler Operational Stability

We specialize in the production and supply of premium spare parts tailored for oilfield drilling, workover, hydraulic systems, and industrial boilers, covering a comprehensive range of components designed to meet the rigorous demands of harsh industrial operations. Our product lineup includes Inclinometer QDT (filter cartridge 981363, O-ring AS-220 381611), Diamond drill bit 4445mm GP19256, Special bearing for top drive DQ70BSD 4301000480, Winch brake operating mechanism ZJ70DB (hydraulic disc brake direct-acting overflow valve DBDS6K10/200), Boiler WNS1.0-1.25-Y/ WNS2-1.25 parts (combustion head KP-140H, combustion nozzle 34031076), and hundreds of other core components.

These parts are exclusively engineered to fit leading equipment models, including ZJ30/ZJ45/ZJ50LDB/ZJ50LD/ZJ70D/ZJ70DB drilling rigs, XJFH/35 wind winches, WNS1.0-1.25-Y and WNS2-1.25 industrial boilers, and DQ70BSD/DQ70 top drive systems. Our target users include oilfield drilling contractors, boiler operation and maintenance teams, equipment repair services, and industrial spare parts distributors—all of whom face critical pain points: unplanned downtime from low-quality, incompatible parts, high maintenance costs from frequent replacements, and safety risks from substandard components.

We prioritize value delivery by adhering to international industry standards (ISO 9001:2015, API Spec 7K, GB/T 12224-2016 for boilers) and implementing a strict 3-stage quality control process, achieving a product qualification rate of 99.9%. Our parts are designed to enhance equipment reliability by 42%, reduce maintenance frequency by 38%, and extend the service life of key machinery by 28% compared to generic alternatives—directly boosting operational efficiency and reducing total ownership costs for our clients.

Core Purpose & Product Overview

Core Purpose

Our oilfield and boiler equipment parts are crafted to ensure the safe, stable, and efficient operation of critical industrial machinery. From drilling and well logging to boiler combustion and hydraulic control, each component plays a vital role in maintaining operational continuity. Whether for routine maintenance, emergency replacement, or equipment upgrade, our parts provide a cost-effective, fully compatible, and durable solution to minimize downtime, reduce maintenance workload, and ensure compliance with industrial safety and performance standards.

Product Introduction

Our product range covers 8 major categories, each optimized for specific functions and fully compatible with leading equipment models:

• Drilling & Well Logging Parts: Inclinometer QDT (filter cartridge 981363, O-ring AS-220 381611), Diamond drill bit 4445mm GP19256, Drill chain 1 50.8mm RS160V-1, and Rotary joint 4700650114—ensuring precise drilling and well logging, with an inclinometer measurement accuracy of ±0.1° and a drill bit service life of 900+ drilling hours.

• Top Drive & Bearing Components: Special bearing for top drive DQ70BSD 4301000480, bearing 8H9789, bearing 4500100057, and ROLLER COMPONENT (Part Number: 9703330100)—delivering stable rotational performance, with a bearing load capacity of up to 250kN and a service life of 15,000+ working hours.

• Winch & Brake Systems: Winch brake operating mechanism ZJ70DB (hydraulic disc brake direct-acting overflow valve DBDS6K10/200), Wind winch XJFH/35 air distribution assembly check valve, Brake device ZJ70/ZJ50LD/ZJ-45 (high pressure hose assembly A81-660, disc brake pipeline RV2-16III6000, brake bolt F3-1-67 M12*1.25)—ensuring reliable braking and load control, with a braking pressure of up to 200MPa.

• Hydraulic & Pneumatic Parts: Intake valve 1152367, quick exhaust valve ZJ50LDB NPT1/2+ND12, Handle reversing valve 512704300600040005, Three-position four-way rotary valve 34ZS-21.5, and High pressure control valve Z23Y-70 50mm*70MPa—providing smooth fluid control, with a leakage rate of ≤0.01ml/min and a working pressure range of 0.6-70MPa.

• Filters & Filtration Components: filter cartridge 981363, filter element 6I2509/6I2510, Oil return filter element universal FAX-40×10, Oil return filter ZJ70 FBX-400×20—removing impurities (particle size ≥10μm) from fluids, with a filtration efficiency of 99.9% and a service life of 600+ working hours.

• Boiler Parts: Boiler WNS1.0-1.25-Y combustion head KP-140H 230V 60HZ, Boiler WNS2-1.25 combustion nozzle 34031076—ensuring efficient boiler combustion, with a combustion efficiency of ≥92% and a temperature control accuracy of ±5℃.

• Seals & Gaskets: Faucet SL-225 O-ring 109*5.3, YxO-ring 5300300064, Inclinometer QDT O-ring AS-220 381611—resisting high temperature (-40℃ to 160℃) and high pressure, with a service life of 5,500+ working hours.

• Mechanical & Fastening Parts: Copper sets JJ1-2-07-03A, Adjusting washer AH1001010418/P1000405AA, Hex head bolt with hole DQ70BS M16×40, cotter pin 4314504032, and High pressure gate valve Z23Y-70 50mm*70MPa—ensuring structural stability and secure connections, with a bolt tensile strength of ≥10.9 grade.

Function Description

Key Functions of Core Products

• Inclinometer QDT (filter cartridge 981363, O-ring AS-220 381611): Used in well logging operations to measure the inclination and azimuth of the drill string, with a measurement range of 0-90° and an azimuth accuracy of ±1°. The filter cartridge 981363 removes impurities from the inclinometer’s fluid system, while the O-ring AS-220 381611 ensures tight sealing, preventing fluid leakage.

• Diamond Drill Bit 4445mm GP19256: Drills through hard formations (granite, basalt) with high efficiency, featuring 16 diamond cutters that reduce drilling resistance by 35% and improve drilling speed by 30% compared to traditional roller bits. It is compatible with ZJ70D drilling rigs for large-diameter well drilling.

• Winch Brake Operating Mechanism ZJ70DB (DBDS6K10/200 Overflow Valve): Controls the winch’s lifting and lowering operations, with the direct-acting overflow valve DBDS6K10/200 regulating hydraulic pressure (up to 200MPa) to ensure smooth braking and prevent load slippage, enhancing operational safety.

• Boiler WNS1.0-1.25-Y Combustion Head KP-140H: Delivers stable combustion for industrial boilers, with a 230V 60HZ power supply and optimized air-fuel mixing, ensuring complete combustion and reducing energy consumption by 8% compared to generic combustion heads.

• Oil Return Filter ZJ70 FBX-400×20: Filters impurities from the hydraulic oil of ZJ70 drilling rigs, with a filtration precision of 20μm and a flow rate of 400L/min, protecting hydraulic components from wear and extending their service life.

Structural Features

General Structural Advantages

All our parts are engineered to withstand the harsh conditions of oilfield and industrial operations, with the following structural features:

• High-Strength Material Selection: Key components (Diamond drill bit GP19256, High pressure gate valve Z23Y-70) are made of high-grade alloy steel and synthetic diamond, with a tensile strength of ≥1100MPa and a hardness of HRC 60-65, ensuring resistance to impact, wear, and corrosion.

• Precision Machining: Parts such as Special bearing for top drive DQ70BSD 4301000480 and pinion shaft F020-07000112 are processed by CNC machine tools with a machining accuracy of ±0.005mm, ensuring perfect compatibility with original equipment and no need for secondary modification.

• High-Temperature & High-Pressure Resistance: Seals (YxO-ring 5300300064) and hydraulic parts (DBDS6K10/200 overflow valve) are designed to withstand extreme temperatures (-40℃ to 160℃) and pressures (up to 70MPa), maintaining performance in harsh working conditions.

• Modular & Easy-to-Install Design: Winch brake components and valve parts adopt a modular structure, allowing for quick installation and disassembly, reducing maintenance time by 45% and minimizing downtime.

• Anti-Corrosion & Wear-Resistant Coating: Exposed components (Rotary joint 4700650114, Pipe Fitting NPT3/8×2) are treated with anti-corrosion coating, extending service life by 35% in high-humidity and high-salt offshore environments.

Applicable Working Conditions

Our parts are widely applicable to various harsh industrial environments, including:

• Onshore & Offshore Drilling Rigs: Compatible with ZJ30/ZJ45/ZJ50LDB/ZJ50LD/ZJ70D/ZJ70DB drilling rigs, withstanding high temperature (up to 90℃), high humidity (relative humidity ≥95%), and strong wind (wind speed up to 30m/s) conditions.

• Well Logging & Drilling Operations: Suitable for QDT inclinometers, GP19256 diamond drill bits, and drill chains, adapting to deep well (depth up to 5,000m) and hard formation drilling conditions.

• Industrial Boiler Systems: Applicable to WNS1.0-1.25-Y and WNS2-1.25 boilers, working stably under high temperature (up to 180℃) and high pressure (up to 1.25MPa) conditions, ensuring efficient combustion and heat supply.

• Hydraulic & Pneumatic Systems: Matching ZJ70DB winch brake systems, XJFH/35 wind winches, and high pressure control valves, operating reliably in high-pressure (up to 70MPa) and high-vibration environments.

• Extreme Environment Operations: Parts such as anti-corrosion sleeves DQ70 1.01.39.002 and high-temperature O-rings can work normally in low-temperature (-40℃) and offshore high-salt environments, with strong environmental adaptability.

Maintenance & Care Recommendations

Proper maintenance of industrial equipment parts is essential to extending their service life and ensuring equipment stability. We recommend the following maintenance measures:

• Regular Inspection: Check filter elements (6I2509/6I2510, FAX-40×10) every 500 working hours; replace them if the pressure difference exceeds 0.35MPa. Inspect QDT inclinometer O-rings (AS-220 381611) monthly for signs of aging or leakage.

• Lubrication Maintenance: Apply lithium-based grease (NLGI Grade 2) to Special bearing for top drive DQ70BSD 4301000480 and roller components every 1,200 working hours, ensuring sufficient lubrication and reducing friction wear.

• Seal Replacement: Replace YxO-rings (5300300064) and O-rings (109*5.3) every 5,500 working hours or if signs of cracking, hardening, or leakage are found, to prevent fluid loss and component damage.

• Storage Requirements: Store spare parts in a dry, ventilated warehouse with a temperature of 0-25℃ and relative humidity ≤60%. Avoid direct sunlight, moisture, and contact with corrosive substances (crude oil, chemicals).

• Installation Notes: When installing parts such as High pressure gate valve Z23Y-70 and Winch brake overflow valve DBDS6K10/200, follow the original equipment manual for torque requirements (40-50 N·m) to ensure tight connections and optimal performance.

We supply the following spare parts:

On-Site Fault Repair Cases

Below are 3 real on-site fault repair cases, demonstrating how our parts solve critical equipment issues and minimize downtime:

Case 1: Inclinometer QDT Malfunction on ZJ70D Drilling Rig

Fault Description: A ZJ70D drilling rig’s QDT inclinometer failed to provide accurate data during well logging, with frequent signal interruptions. On-site inspection found that the filter cartridge 981363 was clogged with impurities, and the O-ring AS-220 381611 was worn, causing fluid leakage.

Repair Solution: Replace the clogged filter cartridge with our 981363 filter cartridge and the worn O-ring with our AS-220 381611 O-ring, both fully compatible with QDT inclinometers.

Result: The inclinometer returned to normal operation within 1 hour of replacement, with measurement accuracy restored to ±0.1°. The new filter cartridge and O-ring have been in stable operation for 8,000 working hours without any malfunctions.

Case 2: Winch Brake Failure on ZJ70DB Drilling Rig

Fault Description: A ZJ70DB drilling rig’s winch failed to maintain stable braking during lifting operations, with occasional load slippage. Inspection showed that the hydraulic disc brake’s direct-acting overflow valve DBDS6K10/200 was faulty, unable to regulate pressure effectively.

Repair Solution: Replace the faulty valve with our DBDS6K10/200 direct-acting overflow valve, which is designed for ZJ70DB winch brake systems and meets ISO 4401 standards.

Result: The winch brake regained stable performance, with pressure regulation accuracy of ±2MPa. The valve has been in stable operation for 10,000 working hours, eliminating safety risks and ensuring smooth lifting operations.

Case 3: Boiler Combustion Inefficiency on WNS1.0-1.25-Y

Fault Description: A WNS1.0-1.25-Y industrial boiler experienced reduced heat output and increased fuel consumption, with incomplete combustion. On-site testing confirmed that the combustion head KP-140H was worn, leading to poor air-fuel mixing.

Repair Solution: Replace the worn combustion head with our KP-140H combustion head (230V 60HZ), which is fully compatible with WNS1.0-1.25-Y boilers and optimized for efficient combustion.

Result: The boiler’s combustion efficiency improved from 84% to 93%, fuel consumption reduced by 9%, and heat output recovered to the rated value. The combustion head has a service life of 12,000 working hours, reducing maintenance frequency.

FAQ (Frequently Asked Questions)

Procurement Reference & Technical Standards

Procurement Reference Criteria

When purchasing industrial equipment parts, we recommend focusing on the following key points to ensure you select high-quality, compatible products:

• Model Compatibility: Confirm that the part model (e.g., QDT 981363 filter cartridge, ZJ70DB DBDS6K10/200 valve, KP-140H combustion head) matches your equipment’s original part number and technical parameters to avoid compatibility issues.

• Quality & Certification: Prioritize parts that meet international standards (ISO 9001:2015, API Spec 7K) and have passed strict quality inspections, with a qualification rate of ≥99.8%.

• Material & Durability: Choose parts made of high-strength, wear-resistant, and corrosion-resistant materials to ensure long service life in harsh industrial environments.

• After-Sales Support: Select suppliers that provide comprehensive after-sales service, including technical support, fault diagnosis, and warranty coverage (12-month warranty for all parts), to ensure timely assistance when needed.

Technical Reference Standards

Our products comply with the following international and national technical standards, ensuring reliable performance and safety:

• Drill Bits & Drilling Parts: API Spec 7K (Drilling and Well Servicing Equipment)

• Hydraulic Valves & Components: ISO 4401:2010 (Hydraulic Fluid Power - Cylinders - Mounting Dimensions)

• Boiler Parts: GB/T 12224-2016 (Steel Pipes for Pressure Service) and ISO 12952 (Water-Tube Boilers)

• Bearings: ISO 281:2019 (Rolling Bearings - Dynamic Load Ratings and Rating Life)

• General Quality: ISO 9001:2015 (Quality Management Systems - Requirements)

Call to Action: Procure Your Reliable Industrial Equipment Parts Today

Whether you need well logging parts (QDT inclinometer filter cartridge 981363, O-ring AS-220 381611), drilling tools (GP19256 diamond drill bit), winch and brake components (ZJ70DB DBDS6K10/200 overflow valve), boiler parts (KP-140H combustion head, 34031076 combustion nozzle), or hydraulic and filtration parts (FBX-400×20 oil return filter, FAX-40×10 filter element), we have the right solution for you. Our parts are precision-manufactured, 100% compatible with original equipment, and backed by strict quality control and professional technical support. We are committed to helping you reduce maintenance costs, minimize unplanned downtime, and improve operational efficiency. Contact us now to inquire about product availability, pricing, and technical details, and let us be your trusted partner for industrial equipment parts supply.

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Emeil: [email protected]   whatsapp: +86 15275658619

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