ZJ70D Air Valve XJFH-5/35-1100, JC70B Drawworks Nozzle CD-20 & Boiler KDB-250FA

Introduction: Precision-Matched Components for Drilling Rigs, Drawworks & Industrial Systems

We specialize in manufacturing and supplying high-performance mechanical, hydraulic, electrical, and drilling parts that are fully compatible with a wide range of oilfield drilling rigs, drawworks, industrial boilers, and auxiliary equipment. Our product portfolio is tailored to fit ZJ40, ZJ40LD, ZJ50D, ZJ70D, ZJ70DBS, DW40C drilling rigs, JC70B drawworks, Boiler KDB-250FA, BQ70BS drilling systems, and various hydraulic, transmission, electrical, and drilling systems. From ZJ70D air valves and JC70B drawworks nozzles to boiler fuel tanks, inclinometer probes, and clutch assemblies, every part is engineered to meet the rigorous operational demands of oilfield drilling, drawworks operation, industrial boiler use, and heavy machinery maintenance—adhering to ISO, API, and GB international industry standards for reliability, safety, and durability.

Our target users include oilfield drilling companies, drilling rig operators, drawworks maintenance teams, boiler operation teams, well logging service providers, and heavy machinery repair workshops. We deeply understand your core needs: parts that fit seamlessly without modification, durable performance that minimizes unplanned downtime, cost-effective solutions that reduce long-term maintenance budgets, and reliable supply for both routine replacements and emergency repairs. Whether you need a single seal half ring (F751.14.04.01.02.00) or a complete preventive maintenance kit (3002600460), we deliver one-stop supply solutions that balance OEM-level quality, perfect compatibility, and competitive pricing—helping you keep your equipment running efficiently, safely, and continuously, while avoiding costly delays caused by mismatched or low-quality components.

Core Purpose: Solve Maintenance Pain Points & Ensure Equipment Reliability

The mechanical parts we supply are critical to the safety, performance, and longevity of your drilling rigs, drawworks, boilers, and industrial systems. Our core mission is to address the most frustrating challenges you face in daily operations: mismatched parts causing costly installation delays, low-quality components leading to frequent breakdowns, exorbitant OEM part costs, and difficulty sourcing hard-to-find specialized components (such as ZJ70D air valves and JC70B drawworks nozzles). By providing ISO/API/GB-compliant, high-compatibility parts—such as the ZJ70D Air Valve XJFH-5/35-1100, JC70B Drawworks Nozzle CD-20, Boiler KDB-250FA Fuel Tank, and LHE-3211 Inclinometer Probe—we help you cut unplanned downtime, reduce maintenance costs, and ensure your equipment operates stably in long-term, high-intensity, high-pressure (up to 35MPa), corrosive, and high-vibration working environments. Our parts are designed to not just replace old components, but to enhance equipment performance, extend service life, and support seamless day-to-day operations for drilling, drawworks, and boiler systems.

Product Introduction

Our product range covers 11 major categories, all manufactured in strict compliance with international industry standards (ISO 9001, API 7-1, API 16C, GB/T) to guarantee compatibility, durability, and performance. Key products include:

• Drilling Rig Core Components: Tensioner Assembly Z06030400001AA, Winch Brake Operating Mechanism ZJ-40, Valve HGK 003.04.01.00 (ZJ70DBS-ZJ70D-ZJ50D), Gear P3000006AA, Herringbone Spacer 9003682, Cylinder Liner Locking Ring AH1301010518, Upper Seat Plate BK-1-7A Brake Pads, Protection Short Circuit DQ70 1.08.01.003.

• Drawworks Parts: NOZZLE FOR DRAWWORKS JC70B (CD-20), VALVE MANDRIL FOR DRAWWORKS JC70B (QF528), 1 AGUJERO 1/2 TORNILLO JALAR THRU ESPECIAL PARA TOPDRIVE PARA CABLE DE 777 MCM E10547.

• Hydraulic & Pneumatic Valves: Foot Control Throttle Valve IA-100/H-1/P50208-1, High Pressure Control Valve Hydraulic Throttle Valve YJF65-35, Flow Valve BQ70BS QV-06/24, High Pressure Control Valve Manual Plate Valve PFF 65-35, Air Valve ZJ70D XJFH-5/35-1100, Two Position Three Way Solenoid Valve Universal MFH-3-1/8 PC24V, Main Regulator Valve Spool 2 6839010.

• Boiler & Auxiliary Parts: Boiler KDB-250FA, Fuel Tank KDB-250FA, Water Pump 2027676.

• Transmission & Clutch Parts: Torque Converter Gasket 23046658, ATD118H ATD218H ATD318 Push Plate Clutch Airbag, Clutch Assembly AVB600*250, Camshaft Bushing 4N0685, Dedicated Piston BOMCO F1300/1600CP55.

• Sealing & Fastening Parts: Seal Half Ring F751.14.04.01.02.00, Bonnet Seal AH0501010508, Oil Seal DW40C0502BZ951201218, Seal Assembly G04050500012AA, Screw Plug 520210050300250004, Plunger Fixing Bolt G04051000001AA, 641103338 Gland Assy Packing.

• Filters & Maintenance Kits: Oil Return Filter RFA-63*10-Y, Line Gap Oil Filter 512605010100630509, Oil Filter Element U1 1/2″.00.10, PREVENTIVE MAINTENANCE KIT 3002600460, Faucet ZJ40LD Flushing Pipe Packing SL225.

• Electrical & Instrumentation Parts: Oil Temperature Gauge 7W2060, Water Temperature Gauge 7W2060, Variable Resistor 55KW(R05 R06) 25Ω, Dynamo 120418114, Y/F0010MP2 Pressure Measurement, Instrument Control Line DQ70BS 7×0.5×5m, Driller’s Floor Communication Cable DQ70BSD 9704029400.

• Inclinometer & Drilling Tools: Inclinometer LHE Type Self-Floating Electronic Single-Point Inclinometer Electronic Single-Point Probe LHE-3211.

• Auxiliary & Safety Parts: Explosion-Proof Ballast Box BAB1001-3/3/4, Explosion-Proof Plug 16A-6h/200-250V-2P+PE 218A, Breathing Valve KG7502, Air Horn Switch (Button) QF533.00, Console Trachea Bundle QGL-21, Y/CF0021 Plug-In Smell RDDALBN.

• Other Components: Belt 9L6643, TRANR150 Air Conditioning Indoor Fan GDF90L4A-J1-1Y, Y/G6I-330 Disc Brake Body Pipeline, Engine Oil 3E9900.

Function Description

Each product is designed to perform specific critical functions, ensuring the smooth, safe, and efficient operation of your equipment. Here’s how our key parts work:

• ZJ70D Air Valve XJFH-5/35-1100: Controls the flow of compressed air in ZJ70D drilling rig pneumatic systems, regulating the operation of pneumatic components such as clutch airbags and air horns—critical for coordinating drilling rig operations and ensuring safety.

• JC70B Drawworks Nozzle CD-20: Atomizes and delivers fuel or lubricant to JC70B drawworks components, reducing friction and heat generation during high-intensity drawworks operation, extending component service life and ensuring smooth power transmission.

• Boiler KDB-250FA & Fuel Tank KDB-250FA: The boiler provides stable heat or steam for industrial operations, while the matching fuel tank stores and supplies fuel to the boiler, ensuring continuous and efficient boiler operation.

• LHE-3211 Inclinometer Probe: Collects accurate wellbore inclination data for LHE type self-floating electronic single-point inclinometers, supporting precise well logging and drilling direction control in complex geological conditions.

• Foot Control Throttle Valve IA-100/H-1/P50208-1: Allows operators to control the throttle of drilling rig engines or hydraulic systems with foot operation, enabling precise adjustment of power output to match drilling requirements.

• PREVENTIVE MAINTENANCE KIT 3002600460: Contains all essential replacement parts for routine preventive maintenance of drilling rigs or industrial equipment, simplifying maintenance procedures and ensuring equipment reliability.

Structural Features

Our products adopt advanced structural design and high-quality materials to withstand harsh working conditions, ensuring long service life and reliable performance. Key structural features include:

• ZJ70D Air Valve XJFH-5/35-1100: Manufactured from high-strength carbon steel, precision-machined valve core for smooth operation and tight sealing; rated for 35MPa pressure, perfectly compatible with ZJ70D drilling rig pneumatic systems, ensuring stable air flow control.

• JC70B Drawworks Nozzle CD-20: High-precision stainless steel construction, optimized nozzle design for uniform atomization; resistant to high temperature and wear, ensuring consistent fuel/lubricant delivery to JC70B drawworks components.

• Boiler KDB-250FA & Fuel Tank KDB-250FA: Boiler body made of heat-resistant steel for high-temperature stability, while the fuel tank features anti-corrosion coating to prevent fuel contamination; leak-proof design ensures safe operation and long service life.

• LHE-3211 Inclinometer Probe: Sealed stainless steel housing to protect internal electronic components from mud and water damage; high-precision sensors ensure accurate inclination data collection, even in harsh wellbore environments.

• Seal Assembly G04050500012AA & Seal Half Ring F751.14.04.01.02.00: Made of high-quality nitrile rubber or Viton, precision-machined to ensure a tight seal; resistant to oil, high temperature, and corrosion, suitable for hydraulic and pneumatic systems in drilling rigs and industrial equipment.

Applicable Working Conditions

Our products are widely used in various harsh and complex working environments, perfectly adapting to the needs of drilling, drawworks operation, boiler use, and industrial production:

• Oilfield Drilling Sites: Suitable for ZJ40, ZJ40LD, ZJ50D, ZJ70D, ZJ70DBS, DW40C drilling rigs, BQ70BS drilling systems, and JC70B drawworks; withstanding high temperature (up to 180℃), high pressure (up to 35MPa), dusty, corrosive, and high-vibration environments—ideal for onshore and offshore drilling operations.

• Industrial Boiler Systems: Applicable to Boiler KDB-250FA and matching fuel tanks; adapting to high-temperature, high-pressure, and high-humidity environments, ensuring stable boiler operation with reliable fuel supply and heat output.

• Hydraulic & Pneumatic Systems: Used in drilling rig hydraulic throttle valves, solenoid valves, and air valves; adapting to high-pressure and high-vibration environments, ensuring reliable fluid and air transmission and control.

• Well Logging & Drawworks Operation: Used in inclinometer probes, drawworks nozzles, and clutch assemblies; suitable for complex well conditions and high-intensity drawworks operation, ensuring accurate well logging and smooth power transmission.

Maintenance & Care Suggestions

Proper maintenance is key to extending the service life of mechanical parts and reducing replacement costs. Here are practical, easy-to-follow suggestions tailored to our products, designed to help you keep your equipment in optimal condition:

• Regular Inspection: Check ZJ70D air valves (XJFH-5/35-1100), JC70B drawworks nozzles (CD-20), and Boiler KDB-250FA components every 65 operating hours; inspect seals (Seal Assembly G04050500012AA) and filters (Oil Return Filter RFA-63*10-Y) for wear or clogging, and replace them in time to avoid leaks or system failure.

• Cleaning & Lubrication: Keep drawworks nozzles, gear components (P3000006AA), and camshaft bushings (4N0685) clean; apply appropriate lubricating oil (Engine Oil 3E9900) to reduce friction and prevent rust and wear. For hydraulic valves and pneumatic components, ensure the hydraulic oil and compressed air are clean to avoid component damage.

• Storage Requirements: Store parts in a dry, ventilated, and dust-free warehouse; avoid direct sunlight and contact with corrosive substances (especially electrical components, seals, and filters). For high-pressure valves (PFF 65-35) and boiler parts, store them in a cool, moisture-free environment to maintain their performance and pressure resistance.

• Installation Notes: Ensure parts are installed correctly according to the equipment manual; avoid forced installation (e.g., aligning plunger fixing bolts G04051000001AA properly to prevent thread damage). For drilling rig components, drawworks parts, and boiler components, follow OEM installation guidelines to ensure compatibility and safety.

• Filter & Seal Maintenance: Regularly replace air filters (3827589) and oil filter elements (U1 1/2″.00.10); check boiler fuel tanks (KDB-250FA) for fuel quality and leaks; inspect sealing parts and gaskets (Torque Converter Gasket 23046658) for wear and replace as needed to prevent leaks.

We supply the following spare parts:

On-Site Fault Maintenance Cases

Here are 3 real on-site maintenance cases, showing how our parts solve practical problems for customers, reduce downtime, and improve equipment performance:

Case 1: Air Valve Failure in ZJ70D Drilling Rig

A customer’s ZJ70D drilling rig experienced unstable pneumatic system operation due to a faulty air valve, causing clutch airbag malfunctions and interrupted drilling. We supplied the ZJ70D Air Valve XJFH-5/35-1100, which is fully compatible with the rig. After replacement, the pneumatic system stabilized, the clutch airbags operated normally, and the rig resumed drilling operations, reducing downtime by 80%.

Case 2: Drawworks Nozzle Clogging in JC70B System

An oilfield’s JC70B drawworks had overheating and increased friction due to a clogged nozzle (CD-20), leading to reduced efficiency and potential component damage. We provided the JC70B Drawworks Nozzle CD-20, which fits perfectly with the drawworks. After replacement, fuel atomization improved, friction and heat generation decreased, and the drawworks operated smoothly for 750 hours, extending component service life by 30%.

Case 3: Inclinometer Probe Malfunction in LHE Well Logging System

A well logging operation had inaccurate inclination data due to a faulty LHE-3211 inclinometer probe, disrupting drilling direction control. We supplied the LHE-3211 Inclinometer Probe, which is compatible with LHE type inclinometers. After replacement, the probe collected accurate data, enabling precise drilling direction control and improving well logging efficiency by 45%.

FAQ (Frequently Asked Questions)

Procurement & Technical Reference Standards

To help you purchase the right parts and solve technical problems efficiently, we provide clear procurement and technical reference standards that align with industry best practices and ISO/API requirements:

• Procurement Reference Standards: All parts are supplied with quality certificates (ISO 9001, API 7-1, API 16C), compatibility reports, and detailed specifications. You can purchase by equipment model, original part number, or custom requirements. We support both bulk and small-batch orders, providing flexible supply solutions to meet your routine maintenance and emergency repair needs. Our parts are priced competitively while maintaining OEM-level quality, helping you reduce long-term maintenance costs.

• Technical Reference Standards: For each product, we provide installation manuals, maintenance guides, and fault diagnosis methods. For example, we offer detailed instructions for installing the ZJ70D Air Valve and replacing the JC70B Drawworks Nozzle. We also provide material specifications, pressure resistance ratings, and operational guidelines to help your maintenance team solve technical issues quickly and accurately.

Conclusion & Procurement Invitation

Our full range of mechanical parts—from the ZJ70D Air Valve XJFH-5/35-1100, JC70B Drawworks Nozzle CD-20, and Boiler KDB-250FA to drilling rig gears, inclinometer probes, and maintenance kits—are engineered to solve your equipment maintenance pain points, improve operational efficiency, and reduce long-term costs. We adhere to strict quality control processes, ensuring each part is reliable, compatible, and durable, meeting the highest industry standards. Whether you need standard replacement parts, specialized components for ZJ series drilling rigs, or drawworks/boiler accessories, we are your trusted supply partner.

We invite you to contact us to discuss your specific needs. Provide us with your equipment model, part number, or application scenario, and our professional team will recommend the most suitable products for you. We are committed to providing high-quality products and thoughtful service to support your equipment’s stable operation and business development, helping you maximize productivity and minimize downtime.

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.