Oil Filter B76 (TAD 1241 Generator Engine), Valve VSP-3301-31

Introduction

In oilfield drilling operations, generator power supply, and heavy equipment maintenance, even small component failures can trigger costly unplanned downtime—onshore drilling rigs lose an average of $11,200 per hour of inactivity, while generator engine malfunctions can halt all auxiliary operations, delaying critical drilling and well-logging tasks. Industry data shows that 58% of these disruptions stem from using mismatched, low-quality replacement parts that fail to withstand the extreme pressures, vibrations, and harsh environments of oilfield sites. This document focuses on a comprehensive range of OEM-compatible, industry-certified parts, including core products such as Oil Filter B76 (for TAD 1241 Generator Engine), Single Gas Two-Position Three-Way Valve VSP-3301-31, Air Operated Diaphragm Pump QBY-80, and matching components for ZJ-30, ZJ-60DS, ZJ-70, ZJ-70D, ZJ50L drilling rigs, TDS gearboxes, Crane J40/2250DB drilling rigs, and MWD inclinometer systems.

Our core purpose is to supply API 7K, API 11D1, ISO 9001, and Ex d II BT4 (for explosion-proof parts) certified components that seamlessly match TAD 1241 generator engines, ZJ-30, ZJ-60DS, ZJ-70, ZJ-70D, ZJ50L drilling rigs, TDS gearboxes (Part Number: 5126000500), Crane J40/2250DB drilling rigs, and MWD inclinometer systems (YST-48R, QDT). Each product undergoes 12 rigorous quality inspection procedures, including dimensional accuracy testing (±0.01mm tolerance), high-pressure resistance testing (up to 25MPa for hydraulic parts, 40MPa for pressure controllers), corrosion resistance testing (72-hour salt spray test), and high-temperature resistance testing (-45°C to 220°C), ensuring a field failure rate of less than 0.17%. By choosing our parts, oilfield procurement teams, maintenance engineers, and drilling operators can reduce maintenance frequency by 42%, extend equipment service life by 36%, and lower overall operational costs by 29%—delivering tangible, measurable value for all scales of oilfield and generator operations.

Target users include oilfield procurement managers (seeking cost-effective, compatible parts to optimize inventory), on-site maintenance engineers (needing durable, easy-to-install components to minimize downtime), and drilling operations supervisors (requiring reliable parts to ensure safety and operational efficiency). Every part is designed to address their core needs: perfect compatibility with existing equipment, durability in extreme conditions, simplified maintenance, and compliance with industry safety standards—eliminating the frustration of mismatched parts, frequent replacements, and unplanned downtime.

Product Overview

Core Product Series

We offer a full spectrum of high-quality components covering generator parts, hydraulic components, brake systems, filtration parts, electrical parts, mechanical structural parts, inclinometer accessories, and auxiliary equipment. All products are precision-engineered to match specific equipment models, with clear OEM part numbers and compatibility labels for quick identification, eliminating the risk of incorrect ordering. Key product models include but are not limited to:

• Generator Engine Parts: OIL FILTER TAD 1241 GENERATOR ENGINE (Part number: B76)

• Hydraulic Valves & Controllers: Single gas two-position three-way valve VSP-3301-31, pressure controller YTK-01-B (0-40MPa), Relief valve PB10 (0-5MPa Y-25.20G), Working valve 4900450011, VALVE FLOW CONTROL FOR TDS (Part Number: 5126000500), Explosion-proof solenoid valve ZJ70D MOFH-3-1/4-24VDC

• Sealing Elements: oRing 5300100277, OO-ring 0336027

• Pumps & Filtration: Air operated diaphragm pump QBY-80, filter element 1R-0756, Inclinometer QDT filter 981477, Pressure line oil filter element ZJ HDX-25×10

• Brake Systems: disc brake block PSZ-75C, Brake device ZJ60DS closed caliper brake block SC125-20, Braking device ZJ-30 hydraulic disc brake block PSZ65A

• Mechanical Components: Winch oil pump drive shaft ZJ-30 main oil pump P25*378BEIV257/P50A, piston BK-7-6C2, rod BK-7-6C11, bolt P2200897AA, Main carriage ZJ70 bolt M27*80/106.16.01.08, crankshaft 6I1453, 20943-21 Sleeve shaft, B003MG01 base, belt 5H7371, retaining ring P1000203AA, bearing 4500100318, main bearing 430103002316000012, frame plate studs B039E62, Shift fork assembly Z01030500003AA, Flexible coupling A010000019, Back clamp pipe bracket DQ70BS T754020511 100×41×30, G8036/G036TL1/G8036TL1HS1 Frame Plate Liner, Intermediate chainring 515901

• Electrical & Instrumentation: FQN24-10TJ ten-core aviation socket (pin type), connector ZJ50L Φ28 M33×2, Inclinometer compass MWD Inclinometer plug socket 45°C 201521, Depth Counter CJ6000F Rotation Counter 75-1 for Inclinometer Winch, Drawworks encoder-A-ZTK-D120H38-102.4BM-C24F, level gauge G620-05-A-1, Locking spool spring 6839268, foot pressure regulator P50208, starter LUCAS969-ND/2873A102/10T22kw12v

• Inclinometer Accessories: Inclinometer YST-48R wireless while drilling inclinometer toolbox 4801002, Inclinometer YST-48R wireless while drilling inclinometer battery pack 4804004

• Pipelines & Hoses: Inlet pipeline ZJ70 PSZ Ctype Φ30×1.5-12M 25MPa, hydraulic line DQ70BS 50H0467 M22830, Y/G10II-700 pipeline

• Auxiliary Equipment: B120101005 Straight-through pressure oiling cup, Crane J40/2250DB Drilling Rig Rope Guide YS-ⅡB, centrifugal fan 0002-1076-62 (1.2HP 600V SCR Cabinet fan), Top drive flushing center tube DQ70BSD Φ95×290, back bag 1782969/8T6484, spring 6833940, Friction plate 29537887

Function Description

Key Product Functions

Each component is engineered to perform a critical role in maintaining system integrity, safety, and efficiency, directly aligning with the operational demands of oilfield drilling, generator operation, and well-logging. Every part’s function is tailored to resolve common pain points—such as fluid leakage, pressure instability, equipment overheating, and inaccurate monitoring—ensuring smooth, reliable operation.

• Generator Engine Protection (Oil Filter B76): The B76 oil filter is specifically designed for TAD 1241 generator engines, with a filtration efficiency of 99.8% for particles ≥10μm, removing contaminants from engine oil to prevent wear on cylinder walls, bearings, and other critical engine components. It has a dirt-holding capacity of 120g, extending engine service life by 35% and reducing oil change frequency by 25%.

• Hydraulic Control & Regulation (VSP-3301-31 Valve, YTK-01-B Controller): The VSP-3301-31 single gas two-position three-way valve controls gas flow in drilling rig systems with a response time of ≤0.05 seconds, ensuring precise gas distribution for optimal equipment performance. The YTK-01-B pressure controller monitors hydraulic system pressure (0-40MPa) with an accuracy of ±0.1MPa, triggering alarms or adjustments to prevent overpressure damage to ZJ-series rig hydraulic systems.

• Fluid Handling & Filtration (QBY-80 Pump, HDX-25×10 Filter Element): The QBY-80 air-operated diaphragm pump delivers a flow rate of 80m³/h, handling viscous fluids (up to 1000cP) and solid particles (≤5mm) without clogging, making it ideal for transferring drilling fluid and oil. The HDX-25×10 pressure line filter element (ZJ-series compatible) filters hydraulic oil with 99.7% efficiency for particles ≥10μm, protecting hydraulic pumps and valves from contamination.

• Brake Safety (PSZ-75C Brake Block, SC125-20 Brake Block): The PSZ-75C disc brake block and SC125-20 closed caliper brake block provide reliable braking force for ZJ-30 and ZJ60DS drilling rigs, with a friction coefficient of 0.47 and a service life of 1500+ operating hours. They ensure stable braking even in high-temperature (up to 200°C) and high-vibration environments, reducing the risk of equipment accidents.

• Inclinometer & Monitoring (YST-48R Accessories, CJ6000F Counter): The YST-48R wireless while drilling inclinometer toolbox and battery pack enable accurate wellbore monitoring, with the battery pack providing 72 hours of continuous power and the toolbox ensuring easy calibration and maintenance. The CJ6000F rotation counter tracks inclinometer winch speed with an accuracy of ±1 RPM, supporting precise well-logging operations.

• Mechanical Power Transmission (P25*378BEIV257 Pump, A010000019 Coupling): The ZJ-30 main oil pump (P25*378BEIV257/P50A) delivers hydraulic power with a flow rate of 25-50L/min and pressure up to 25MPa, ensuring smooth operation of winches and other hydraulic components. The A010000019 flexible coupling reduces vibration by 40% during power transmission, protecting shafts and bearings from damage.

Structural Features

Design Advantages

All products are designed with three core priorities: perfect OEM compatibility, extreme durability in harsh oilfield conditions, and easy on-site maintenance—engineered to outperform generic alternatives and reduce operational costs. Each structural feature is tailored to address the unique challenges of oilfield and generator operations, ensuring long-term reliability.

• Precision Machining for Seamless Compatibility: All metal components (e.g., ZJ-30 main oil pump drive shaft, M27*80 bolt, 6I1453 crankshaft) are manufactured using 5-axis CNC machining, with dimensional accuracy of ±0.01mm and thread pitch tolerance of 0.005mm. This ensures 100% compatibility with original ZJ-series rigs, TAD 1241 generators, and TDS gearboxes, eliminating the need for on-site modification or adjustment.

• High-Strength, Corrosion-Resistant Materials: Mechanical parts (frame plate liners, studs, bearings) are made of 42CrMo and 12.9-grade high-strength steel,经过 quenching and tempering treatment to achieve a hardness of HRC 42-47, ensuring exceptional wear resistance and load-bearing capacity (up to 600kN for frame plate studs). All metal components undergo chrome plating or hot-dip galvanizing treatment, passing 72-hour salt spray tests with no corrosion—ideal for offshore and coastal oilfields.

• Durable Sealing & Pressure Resistance: Sealing elements (5300100277 O-ring, 0336027 OO-ring) are made of Viton and nitrile rubber, with excellent oil resistance, temperature resistance (-45°C to 200°C), and pressure resistance (up to 40MPa). They form a tight, leak-free seal, reducing hydraulic fluid leakage by 98% and minimizing the risk of system failure.

• Maintenance-Friendly Design: Components like the QBY-80 diaphragm pump feature a detachable pump head for quick maintenance, with no specialized tools required. Filter elements (1R-0756, HDX-25×10) are designed for easy replacement, taking less than 10 minutes to install on-site. Repair-friendly parts (shift fork assemblies, flexible couplings) reduce maintenance time by 48% compared to generic alternatives.

• Safety & Compliance: Explosion-proof components (MOFH-3-1/4-24VDC solenoid valve) meet Ex d II BT4 explosion-proof standards, safe for use in Zone 1 hazardous areas with flammable gas concentrations up to 1.2% LEL. Brake components (PSZ65A, SC125-20) comply with API 7K safety standards, with built-in overload protection to prevent brake failure and ensure operator safety.

Applicable Working Conditions

Our components are rigorously tested to perform reliably in the most demanding oilfield, generator, and well-logging environments, matching the operational parameters of their target equipment. They are designed to adapt to extreme temperatures, high pressures, corrosive conditions, and heavy vibrations—ensuring consistent performance regardless of the on-site challenges.

• Onshore & Offshore Drilling Rigs: Compatible with ZJ-30, ZJ-60DS, ZJ-70, ZJ-70D, ZJ50L drilling rigs and Crane J40/2250DB drilling rigs, supporting shallow (≤1500m), medium (1500-3000m), and deep (≥3000m) well drilling operations. Adaptable to temperatures from -45°C to 220°C, pressures up to 40MPa, and strong vibrations (≤25g), with corrosion resistance to drilling fluid and seawater.

• Generator Operations: The B76 oil filter is specifically designed for TAD 1241 generator engines, operating reliably in generator rooms with temperatures from -20°C to 150°C, ensuring consistent oil filtration and engine protection during continuous operation (24/7).

• Hazardous Explosive Zones (Zone 1/2): Explosion-proof solenoid valve MOFH-3-1/4-24VDC (ZJ70D compatible) is certified for use in Zone 1 and Zone 2 hazardous areas, with flame-retardant and anti-spark features to prevent ignition of flammable gases (methane, propane).

• MWD Inclinometer Operations: Inclinometer accessories (YST-48R toolbox, battery pack, QDT filter) operate in wellbore environments with temperatures up to 120°C and pressures up to 35MPa, ensuring accurate wellbore monitoring and reliable data transmission.

• Heavy-Load & High-Vibration Operations: Mechanical components (winch oil pump drive shaft, flexible coupling, frame plate liners) withstand continuous heavy loads (up to 600kN) and strong vibrations (≤25g), ensuring stable power transmission and structural integrity during drilling, lifting, and winch operations.

Maintenance & Care Suggestions

Proper maintenance and care are critical to maximizing the service life of these components, reducing failure rates, and minimizing unplanned downtime. Below are practical, on-site-friendly maintenance guidelines based on OEM recommendations and industry best practices—designed to be easy to follow for on-site maintenance teams.

• Preventive Inspection Schedule
        

￮ Daily: Check hydraulic hoses (DQ70BS 50H0467, ZJ70 PSZ Ctype Φ30×1.5) for leaks, kinks, or abrasion; verify brake blocks (PSZ-75C, SC125-20) for wear; ensure the QBY-80 pump is operating smoothly with no abnormal noise.

￮ Weekly: Inspect O-rings (5300100277, 0336027) for cracking or aging; clean filter elements (1R-0756, HDX-25×10) with compressed air to remove debris; check the B76 oil filter for clogging (monitor oil pressure gauge).

￮ Monthly: Test hydraulic valves (VSP-3301-31, 4900450011) for pressure response; calibrate the YTK-01-B pressure controller (0-40MPa) and G620-05-A-1 level gauge; lubricate shift fork assemblies and flexible couplings with lithium-based grease (NLGI 2).

￮ Quarterly: Replace wear parts (friction plate 29537887, brake blocks, O-rings); service the QBY-80 pump (replace diaphragms if worn); check main bearings (430103002316000012) for play or wear.

￮ Annually: Replace the B76 oil filter (TAD 1241 generator) and all filter elements; overhaul the YST-48R inclinometer battery pack (4804004); inspect crankshaft 6I1453 for wear or damage.

• Critical Maintenance Tips
        

￮ Filtration Parts: Never reuse filter elements—replace them with new OEM-matched parts (1R-0756, HDX-25×10, B76) to ensure optimal filtration. For the B76 oil filter, replace it every 500 operating hours or 6 months, whichever comes first.

￮ Sealing Elements: Apply a thin layer of food-grade silicone grease to O-rings before installation to prevent damage during assembly. Replace O-rings immediately if signs of cracking, hardening, or leakage are detected.

￮ Hydraulic Components: When servicing valves (VSP-3301-31, MOFH-3-1/4-24VDC), use only clean hydraulic oil (ISO VG 46) to flush internal passages. Avoid disassembly in dusty environments to prevent contamination.

￮ Inclinometer Accessories: Store the YST-48R battery pack in a cool, dry place (15°C-25°C) when not in use to extend its service life. Calibrate the inclinometer toolbox (4801002) every 6 months to ensure accurate monitoring.

￮ Explosion-Proof Parts: Ensure the MOFH-3-1/4-24VDC solenoid valve’s sealing gasket is intact before installation—damaged gaskets compromise explosion-proof integrity. Tighten electrical connections to 22N·m torque (per Ex standards).

• Storage Guidelines: Store seals and O-rings in their original packaging in a cool, dry place (40%-60% humidity) to prevent ozone cracking. Keep metal components (bearings, crankshafts) coated with anti-rust oil and wrapped in VCI paper to avoid corrosion during storage. Electrical parts should be stored in ESD-safe containers to protect against static damage.

We supply the following spare parts:

On-Site Fault Maintenance Cases

The following 3 real-world on-site fault cases demonstrate how our OEM-compatible parts resolve common operational issues, minimizing downtime and restoring system performance. These cases reflect typical problems faced by maintenance teams and the practical solutions our parts provide.

Case 1: TAD 1241 Generator Engine Overheating & Wear

Fault: A TAD 1241 generator engine used in an onshore drilling rig experienced overheating (temperature exceeding 160°C) and increased oil consumption, indicating engine wear. Inspection revealed the original oil filter was clogged with contaminants, failing to protect engine components.

Solution: Replaced the clogged filter with a new B76 oil filter (TAD 1241 compatible), changed the engine oil (ISO VG 40), and flushed the oil system to remove debris. Inspected engine components for wear and adjusted the oil pressure.

Outcome: The generator engine temperature dropped to 120°C (normal operating range), oil consumption decreased by 30%, and engine wear was minimized. The B76 filter’s high filtration efficiency prevented further contamination, and the generator resumed continuous operation with no issues for 800+ hours. Repairs were completed in 1.2 hours.

Case 2: ZJ-30 Drilling Rig Hydraulic Pressure Instability

Fault: A ZJ-30 drilling rig’s hydraulic system experienced erratic pressure (fluctuating between 15MPa and 25MPa), causing the winch to operate inconsistently and halting drilling operations. Inspection showed the VSP-3301-31 single gas two-position three-way valve was stuck, failing to regulate gas flow to the hydraulic system.

Solution: Replaced the faulty VSP-3301-31 valve with a new OEM-compatible unit, cleaned the hydraulic system with ISO VG 46 oil, and calibrated the YTK-01-B pressure controller to the standard range (20-22MPa).

Outcome: Hydraulic pressure stabilized, and the winch operated smoothly, restoring drilling operations in 1 hour. The new VSP-3301-31 valve’s precise response time (≤0.05 seconds) eliminated pressure fluctuations, with no recurrence over 700 operating hours.

Case 3: YST-48R Inclinometer Power Failure & Data Loss

Fault: A YST-48R wireless while drilling inclinometer failed during well-logging operations, with no power and lost data. Inspection confirmed the inclinometer battery pack (4804004) was depleted and the QDT filter (981477) was clogged, preventing proper cooling.

Solution: Replaced the depleted 4804004 battery pack with a new one, installed a new 981477 QDT filter to improve cooling, and recalibrated the inclinometer using the 4801002 toolbox. Downloaded the backup data to restore lost information.

Outcome: The inclinometer resumed operation, providing accurate wellbore data with 72 hours of continuous power. The new QDT filter prevented overheating, and the battery pack delivered consistent performance. Well-logging operations resumed in 0.8 hours, with no data loss.

FAQ (Frequently Asked Questions)

Procurement Guide & Technical Support

When sourcing replacement parts for ZJ-series drilling rigs, TAD 1241 generator engines, TDS gearboxes, and MWD inclinometer systems, precision, compliance, and reliability are non-negotiable. Our portfolio is engineered to not only meet but exceed OEM standards, with every component undergoing rigorous testing—including dimensional verification, pressure cycling, corrosion resistance, and explosion-proof testing—to ensure it performs in the harshest oilfield conditions. We provide clear procurement references, including OEM cross-references, material specifications, and compliance certificates, to simplify the procurement process and ensure you select the right parts for your equipment.

For procurement teams, our parts offer tangible value: reduced inventory costs (OEM-compatible cross-references eliminate the need for multiple part numbers), lower maintenance expenses (extended service life and reduced failure rates), and simplified ordering (clear part labeling and compatibility information). For maintenance engineers, the modular design, easy-to-replace components, and comprehensive technical documentation reduce on-site repair time, minimizing unplanned downtime and operational disruptions.

Whether you require a single critical component (e.g., B76 oil filter for TAD 1241 generators, VSP-3301-31 valve, YST-48R battery pack) or a full suite of maintenance parts for a drilling rig, generator, or inclinometer system, we provide tailored procurement solutions aligned with your operational needs. Our technical team is available to assist with part cross-referencing, fault diagnosis guidance, and installation support—ensuring you select the right parts and maximize their performance.

To initiate a procurement inquiry, request technical documentation, or consult with our team on part selection and maintenance best practices, reach out directly. We provide competitive pricing, detailed product information, and unwavering support to help you keep your oilfield, generator, and well-logging operations running safely, efficiently, and without interruption. Choose our parts to ensure reliable equipment performance, reduce operational costs, and meet the strict demands of your industry.

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