WNS2-1.25-Y Boiler, 4900350054 Steering Assignment

Introduction: Premium Components for Uninterrupted Industrial Operations

We specialize in the production and supply of high-performance spare parts for oilfield drilling, top drive systems, winch operations, industrial boilers, and hydraulic control systems, covering a full range of components engineered to withstand the harsh conditions of industrial work. Our product lineup includes steering assignment 4900350054, Steel tooth roller bit 200mm HJ437G/8-1/2″ HJT527G, UPPER IBOP FOR TOP DRIVE BPM-DQ70BSC (Part Number: 2210270197), Boiler WNS2-1.25-Y safety valve A21 H-64, and hundreds of other core components such as shafts, valves, filters, bearings, seals, and structural parts.

These parts are custom-designed to fit leading equipment models, including ZJ30C/ZJ40/ZJ50D/ZJ70D drilling rigs, BPM-DQ70BSC top drives, JGL05600700B1 drum couplings, FKQ8006 remote control systems, WNS2-1.25-Y industrial boilers, and EX300-1 turbochargers. Our target users include oilfield drilling contractors, top drive operation teams, boiler maintenance personnel, winch operators, and industrial spare parts distributors—all of whom face critical pain points: costly unplanned downtime from low-quality or incompatible parts, frequent replacements that drive up maintenance costs, safety hazards from substandard braking and valve components, and reduced operational efficiency due to component wear, leaks, or failures.

We put value first by adhering to strict international industry standards (ISO 9001:2015, API Spec 7K for drilling parts, ASME Section I for boiler components, IEC 60947 for electrical parts) and implementing a rigorous 3-stage quality control process (raw material inspection, precision machining validation, pre-delivery functional testing). This ensures a product qualification rate of 99.9%, and our parts are proven to boost equipment reliability by 47%, cut maintenance frequency by 43%, and extend key machinery service life by 33% compared to generic alternatives—directly reducing total ownership costs and keeping your operations running smoothly.

Core Purpose & Product Overview

Core Purpose

Our industrial equipment parts are built to ensure the safe, stable, and efficient operation of critical machinery across oilfield, boiler, and industrial sectors. From drilling and top drive operations to winch control, hydraulic transmission, and boiler safety, every component plays a vital role in maintaining operational continuity. Whether you need parts for routine maintenance, emergency replacements, or equipment upgrades, our products offer a cost-effective, 100% compatible, and durable solution to minimize downtime, reduce maintenance workload, and ensure compliance with strict industrial safety and performance standards.

Product Introduction

Our product range covers 11 major categories, each optimized for specific functions and fully compatible with leading equipment models:

• Drilling Bits & Drilling Parts: Steel tooth roller bit 200mm HJ437G, 8-1/2″ HJT527G—engineered for efficient drilling in sandstone, limestone, and other formations, with a drilling speed of 15-25m/h and a service life of 800+ drilling hours. These bits are compatible with ZJ30C/ZJ40/ZJ50D drilling rigs.

• Top Drive & Drill Rig Components: UPPER IBOP FOR TOP DRIVE BPM-DQ70BSC (2210270197), main drum assembly Z03010000038AA, MAIN DRUM ASSY INCLUDED DISC BRAKE (70010500), Drum Coupling JGL05600700B1, and One-way clutch ZJ-40—ensuring reliable top drive and drilling rig operation, with a main drum load capacity of up to 500t and IBOP pressure resistance of 35MPa.

• Hydraulic & Pneumatic Components: hydraulic line DQ70BS 50H0453/50H0452 M221320, Handle reversing valve ZJ70D 2-HA-1R REXROTH, Seven-position shift cylinder P063981-2, tilt cylinder DQ70 2.3.02.005, Pneumatic control valve 512704260400060602, and High pressure control valve mud gate valve Z23Y-35MPa DN50—providing smooth fluid transmission, with a hydraulic line working pressure of up to 35MPa and valve response time of ≤0.06 seconds.

• Steering & Control Parts: steering assignment 4900350054, Single CAN bus acquisition interface SK-9N11B, Toggle switch VA942 380/12, Remote control room alarm device FKQ8006 (with transmission line), and SK-2Z16 Trunk cable T-type tee SK-8B06FG—ensuring precise control and signal transmission, with a CAN bus communication accuracy of ±0.1% and alarm response time of ≤1 second.

• Filters & Filtration Parts: filter element ZJ40 IX-63×180, filter element 6I2509/6I2510/6T5068, Turbocharger EX300-1 filter element 26510342—removing impurities (particle size ≥10μm) from oil, air, and hydraulic fluid, with a filtration efficiency of 99.9% and a service life of 650+ working hours.

• Seals & Gaskets: V WATER SEALING GVA-3500 (5303940230), Bearing oil seal 9998C, O-ring 8T7876/5300100170, Gasket 8E-8310, oil pan gasket 1880210, 7496-253 Seal housing—resisting high temperature (-40℃ to 180℃) and high pressure, with a seal leakage rate of ≤0.01ml/min and service life of 5,800+ working hours.

• Bearings & Bushings: Shaft SB68J0017, DW40C0903 wg839790213 Bearing, B005M Bearing Assembly, Bushing BK-3-7A2, Frame bushing CH1041MA05—ensuring smooth rotation and structural stability, with a bearing load capacity of up to 250kN and wear resistance of ≤0.01mm/1000 hours.

• Brake & Clutch Parts: Friction disc W30-07-903, Ventilated clutch friction plate LT500*200T, Electromagnetic eddy current brake ZJ50D (Electromagnetic brake coil FDWS50)—delivering reliable braking and power transmission, with a clutch engagement time of ≤0.3 seconds and brake response time of ≤0.4 seconds.

• Boiler & Auxiliary Parts: Boiler WNS2-1.25-Y safety valve A21 H-64, IA-122/510333 Antifreeze—ensuring safe boiler operation, with the safety valve set pressure of 1.25MPa and antifreeze working temperature range of -40℃ to 100℃.

• Fasteners & Connecting Parts: Retaining ring 4313800035, bolt T500-1023, track shoe bolts 6V1723, WASHER 6883492, Quick connector assembly NPT1 520901040925250000, pipe clamp PS702405—ensuring secure connections, with a bolt tensile strength of ≥10.9 grade and quick connector pressure resistance of up to 40MPa.

• Auxiliary & Structural Parts: air bag W11-20-900, Gate assembly FZ897.21.01.00, sprocket E790-04000043, PACKER FRONT (RS11148091802), Faucet SL-170 Central tube SL170.31, Swimming assembly Z16120100014AA, gearbox HT-750DR, Winch oil pump drive shaft ZJ-30C, Frame CH1032A05, steel sheet 23047771, diesel pressure gauge 2W3687—supporting overall equipment functionality and durability.

Function Description

Key Functions of Core Products

• Steering Assignment 4900350054: Controls the steering system of industrial machinery and drilling rigs, ensuring precise direction adjustment during operation. It features a compact design, compatible with multiple equipment models, and delivers smooth steering response with an accuracy of ±0.5°.

• UPPER IBOP FOR TOP DRIVE BPM-DQ70BSC (Part Number: 2210270197): Acts as a safety valve for BPM-DQ70BSC top drives, isolating the drill string and preventing well fluid backflow during drilling operations. It withstands a maximum pressure of 35MPa and is designed for quick opening and closing to ensure operational safety.

• Boiler WNS2-1.25-Y Safety Valve A21 H-64: Protects WNS2-1.25-Y industrial boilers from overpressure, automatically releasing excess steam when pressure exceeds 1.25MPa. It meets ASME Section I standards, ensuring reliable operation and preventing boiler damage or safety accidents.

• Steel Tooth Roller Bit 8-1/2″ HJT527G: Drills through medium to hard formations (hardness up to 3500PSI) with high efficiency, featuring 16 steel teeth that reduce drilling resistance by 38% and improve drilling speed by 32% compared to standard bits. It is compatible with ZJ50D/ZJ70D drilling rigs for oilfield operations.

• Handle Reversing Valve ZJ70D 2-HA-1R REXROTH: Controls the direction of hydraulic fluid flow for ZJ70D drilling rig hydraulic systems, enabling quick reversal of winch or cylinder operations. It has a service life of 12,500+ working hours and is fully compatible with REXROTH hydraulic systems.

Structural Features

General Structural Advantages

All our parts are engineered to perform reliably in harsh industrial environments, with the following structural features that set them apart from generic alternatives:

• High-Strength Material Selection: Key components (Steel tooth roller bit HJT527G, Shaft SB68J0017, Frame CH1032A05) are made of high-carbon alloy steel, wear-resistant cast iron, and reinforced synthetic materials, with a tensile strength of ≥1200MPa and a hardness of HRC 63-67, ensuring resistance to impact, wear, and corrosion.

• Precision Machining: Parts such as Handle reversing valve 2-HA-1R REXROTH, Bushing BK-3-7A2, and Quick connector assembly NPT1 are processed by CNC machine tools with a machining accuracy of ±0.003mm, ensuring perfect compatibility with original equipment and no need for secondary modification.

• High-Temperature & High-Pressure Resistance: Seals (V WATER SEALING GVA-3500, O-ring 5300100170) and hydraulic parts (High pressure control valve Z23Y-35MPa) are designed to withstand extreme temperatures (-40℃ to 180℃) and pressures (up to 35MPa), maintaining performance in harsh working conditions.

• Safety & Reliability Design: Safety-critical parts (Boiler safety valve A21 H-64, UPPER IBOP 2210270197) meet international safety standards, featuring pressure relief and backflow prevention mechanisms to minimize operational risks. Electrical and control parts (Single CAN bus interface SK-9N11B) have anti-interference design for stable signal transmission.

• Modular & Easy-to-Install Design: Valves, filters, and brake components adopt a modular structure, allowing for quick installation and disassembly, reducing maintenance time by 48% and minimizing unplanned downtime.

• Corrosion Resistance: Exposed components (sprocket E790-04000043, Frame CH1032A05) are treated with anti-corrosion coating (Zn-Ni plating), extending service life by 40% in high-humidity and offshore oilfield environments.

Applicable Working Conditions

Our parts are widely applicable to various harsh industrial environments, perfectly matching the operational needs of oilfield, boiler, and industrial equipment:

• Onshore & Offshore Oilfields: Compatible with ZJ30C/ZJ40/ZJ50D/ZJ70D drilling rigs, BPM-DQ70BSC top drives, and ZJ-30C winches, withstanding high temperature (up to 95℃), high humidity (relative humidity ≥95%), strong wind (wind speed up to 32m/s), and high-salt environments.

• Drilling & Top Drive Operations: Suitable for Steel tooth roller bits HJ437G/HJT527G, UPPER IBOP 2210270197, and One-way clutch ZJ-40, adapting to deep well (depth up to 6,500m) and medium-to-hard formation drilling conditions.

• Industrial Boiler Systems: Applicable to WNS2-1.25-Y boilers, safety valve A21 H-64, and IA-122/510333 Antifreeze, working stably under high temperature (up to 180℃) and high pressure (up to 1.25MPa) conditions.

• Hydraulic & Pneumatic Systems: Matching ZJ70D handle reversing valve 2-HA-1R, tilt cylinder DQ70 2.3.02.005, and Pneumatic control valve 512704260400060602, operating reliably in high-pressure (up to 35MPa) and high-vibration environments.

• Industrial Control Systems: Suitable for steering assignment 4900350054, Single CAN bus interface SK-9N11B, and FKQ8006 remote control alarm device, working stably in industrial environments with fluctuating power supply and electromagnetic interference.

Maintenance & Care Recommendations

Proper maintenance of industrial equipment parts is key to extending their service life and ensuring equipment stability. We recommend the following practical maintenance measures, tailored to our product range:

• Regular Inspection: Check filter elements (ZJ40 IX-63×180, 6I2509, 26510342) and air filter components every 550 working hours; replace them if the pressure difference exceeds 0.38MPa. Inspect seals (V WATER SEALING GVA-3500, Bearing oil seal 9998C) monthly for signs of aging, cracking, or leakage.

• Lubrication Maintenance: Apply lithium-based grease (NLGI Grade 2) to bearings (DW40C0903 wg839790213), bushings (BK-3-7A2), and sprocket E790-04000043 every 1,100 working hours, ensuring sufficient lubrication and reducing friction wear.

• Hydraulic & Pneumatic Maintenance: Flush hydraulic line DQ70BS 50H0453/50H0452 and Handle reversing valve 2-HA-1R every 2,000 working hours to remove internal impurities. Check the High pressure control valve Z23Y-35MPa quarterly for valve seat wear and adjust as needed.

• Boiler Part Maintenance: Inspect Boiler WNS2-1.25-Y safety valve A21 H-64 every 6 months to ensure proper pressure relief function. Replace IA-122/510333 Antifreeze annually to maintain its anti-freezing and anti-corrosion properties.

• 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). Electrical and control parts should be stored in anti-static, moisture-proof packaging.

• Installation Notes: When installing parts such as UPPER IBOP 2210270197, Handle reversing valve 2-HA-1R, and Steel tooth roller bit HJT527G, follow the original equipment manual for torque requirements (38-55 N·m) to ensure tight connections and optimal performance. Avoid over-tightening to prevent component damage.

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, minimize downtime, and restore operations quickly:

Case 1: BPM-DQ70BSC Top Drive Well Fluid Backflow

Fault Description: A BPM-DQ70BSC top drive experienced well fluid backflow during drilling operations, posing safety risks and interrupting work. On-site inspection found that the UPPER IBOP (Part Number: 2210270197) was worn, leading to poor sealing and backflow.

Repair Solution: Replace the worn IBOP with our 2210270197 upper IBOP, fully compatible with BPM-DQ70BSC top drives and tested for pressure resistance and sealing performance.

Result: The backflow issue was completely resolved within 2 hours of replacement, and the top drive regained safe operation. The new IBOP has been in service for 9,500 working hours without leaks, ensuring uninterrupted drilling operations.

Case 2: ZJ70D Drill Rig Hydraulic Direction Control Failure

Fault Description: A ZJ70D drilling rig’s hydraulic system failed to reverse direction during winch operations, leading to operational disruption. Inspection showed that the Handle reversing valve 2-HA-1R REXROTH was clogged and worn, causing internal leakage.

Repair Solution: Replace the faulty valve with our 2-HA-1R handle reversing valve, designed for ZJ70D drilling rigs and fully compatible with REXROTH hydraulic systems.

Result: The hydraulic system regained normal direction control within 1 hour of replacement, with smooth and precise operation. The new valve has a service life of 12,500 working hours, reducing maintenance frequency and costs.

Case 3: WNS2-1.25-Y Boiler Overpressure Alarm

Fault Description: A WNS2-1.25-Y industrial boiler triggered an overpressure alarm, with pressure exceeding 1.5MPa. Testing confirmed that the safety valve A21 H-64 was faulty and failed to release excess steam.

Repair Solution: Replace the faulty safety valve with our A21 H-64 safety valve, fully compatible with WNS2-1.25-Y boilers and set to the standard pressure of 1.25MPa.

Result: The boiler pressure was restored to normal within 1.5 hours of replacement, and the safety valve functioned reliably. The new valve has been in service for 10,000 working hours, ensuring safe boiler operation and preventing potential accidents.

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 that meet your operational needs:

• Model Compatibility: Confirm that the part model (e.g., 4900350054 steering assignment, 2210270197 upper IBOP, A21 H-64 safety valve) 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 (e.g., high-carbon alloy steel, high-temperature rubber) to ensure long service life in harsh industrial environments.

• Performance Parameters: Verify key performance indicators (e.g., pressure resistance for valves, drilling speed for bits, filtration efficiency for filters) to ensure they meet your equipment’s operational requirements.

• After-Sales Support: Select suppliers that provide comprehensive after-sales service, including technical support, fault diagnosis, and a 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, safety, and compatibility with global industrial equipment:

• Drilling & Top Drive Parts: API Spec 7K (Drilling and Well Servicing Equipment)

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

• Boiler Parts: ASME Section I (Boiler and Pressure Vessel Code) and GB/T 12224-2016

• Electrical & Control Parts: IEC 60947 (Low-Voltage Switchgear and Controlgear)

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

Call to Action: Procure Your Reliable Industrial Equipment Parts Today

Whether you need drilling parts (Steel tooth roller bit 8-1/2″ HJT527G, 200mm HJ437G), top drive components (UPPER IBOP 2210270197), hydraulic parts (ZJ70D 2-HA-1R reversing valve, DQ70BS hydraulic line), boiler parts (WNS2-1.25-Y safety valve A21 H-64), or control components (4900350054 steering assignment, SK-9N11B CAN bus interface), 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.