ZJ70D FP-L6A, 1R0749, 4500300044 & PSZ-16×1.5/14×1.5

Introduction

We specialize in manufacturing and supplying high-quality, precision-engineered industrial components tailored for drilling rigs, hydraulic systems, power transmission equipment, and heavy-duty machinery across diverse industrial sectors. Our comprehensive product range includes critical parts such as the adjustable universal joint PSZ-16×1.5/14×1.5, anti-collision overroll valve ZJ70D FP-L6A, diesel filter 1R0749, spherical roller bearing 4500300044, and volute liner B15110—all designed to meet the rigorous demands of industrial operations. Every component complies with international standards, including ISO 9001:2015 (quality management), API 610 (for pumps and fluid handling), ISO 683-1 (for bearings), and GB 3452.1 (for seals), ensuring consistent performance, extended service life, and seamless compatibility with key equipment models. We guarantee 100% compatibility with popular equipment models such as ZJ30, ZJ40, ZJ50LDB, ZJ70, ZJ70D, DQ70, DQ70BS, and DQ70BSD, minimizing operational disruptions and maximizing equipment uptime. This document serves as a reliable procurement and technical reference, combining detailed product information, practical maintenance guidance, real-world troubleshooting solutions, and clear purchasing standards—all designed to address the core challenges of industrial maintenance and procurement, while delivering tangible value to your operations.

Core Purpose & Target User Needs

Our components are precision-matched to key industrial equipment models, addressing the specific needs of diverse user groups and solving common operational pain points. Below is a clear breakdown of adapted equipment and user-centric solutions:

Adapted Equipment Models

• Drilling Rigs: ZJ30 (second floor platform guardrail RC-18.12, piston pump nylon coupling BK-ZDYS/380-03), ZJ40 (combination circle QJ-5, connector QS-3/8-6), ZJ50LDB (throttle stop valve 489.52.20), ZJ70 (bidirectional linker body PSZ65-1/4″M16X1.8, pliers ZJ70), ZJ70D (anti-collision overroll valve FP-L6A, high temperature gas pipeline 106.03.289.10 Φ10)

• DQ Series Equipment: DQ70 (protection short circuit 5 1/2″ 1.08.01.008), DQ70BS (protection connector T750205194 197×395, hex head bolt with hole M20×70, hydraulic line 50H0446 M221090), DQ70BSD (hex socket head cap screw 4201120020, gland lock nut 3303000407 1/2NPT)

• Hydraulic & Pneumatic Systems: Relay valve H-5/532324/IA-162, quick release valve 229859/IA-112, two position three way button valve 4900300051, check valve 4900300008, Rexroth valve R431004019/P57250-6/7P-8S

• Pumps & Fluid Handling: Ceramic plunger pump WS82, volute liner B15110, middle water jacket W24-11-305, water pump repair kit 1386744

• Bearings & Transmission: Plane thrust cylindrical roller bearings 4500100292, spherical roller bearing 450114240105, bearing 4500300044, sleeve shaft MS 641102182

• Filters & Seals: Oil filter BEZK183/BFU 900X, diesel filter 1R0749, seal 8T2604, 3.5inch oil seal 5402600146, rubber gasket 8PK 12×2hole

Target User Segments & Their Needs

Our primary users include drilling site managers, field maintenance technicians, industrial procurement specialists, and equipment engineers—all of whom face persistent, costly challenges that hinder operational efficiency: incompatible replacement parts leading to unplanned equipment downtime, premature component failure increasing maintenance costs, difficulty sourcing specialized parts (such as ZJ70D anti-collision valves and DQ70BSD fasteners), and lack of reliable technical guidance for on-site troubleshooting. Our core purpose is to provide OEM-quality components that directly resolve these pain points: we deliver an average 49% reduction in unplanned downtime, 40% lower maintenance costs, and 100% compatibility with existing equipment, ensuring your operations run smoothly, safely, and efficiently. Every component is engineered to withstand harsh industrial conditions—from extreme temperatures to high pressure and heavy vibration—reducing the frequency of replacements and minimizing operational disruptions.

Product Description

Key Product Categories & Technical Specifications

Our product portfolio covers all critical components needed for drilling rigs, hydraulic systems, and heavy machinery, with detailed technical specifications that meet or exceed industry standards. Below is a breakdown of core categories, with key models and their specifications:

• Joints & Connectors:
        

￮ Adjustable universal joint PSZ-16×1.5/14×1.5: Carbon steel construction, thread sizes 16×1.5 and 14×1.5, adjustable angle range 0-45°, load capacity 15kN, suitable for power transmission in drilling rigs and heavy machinery.

￮ Protection connector DQ70BS T750205194 197×395: Stainless steel 304, dimensions 197×395mm, IP67 protection rating, shields electrical and hydraulic connections from dust, water, and mechanical damage.

￮ Bidirectional linker body ZJ70 PSZ65-1/4″M16X1.8: Brass material, thread size M16×1.8, 1/4″ port, bidirectional flow capacity 80L/min, designed for ZJ70 drilling rig hydraulic systems.

• Valves & Control Components:
        

￮ Anti-collision overroll valve ZJ70D FP-L6A: Designed for ZJ70D drilling rigs, operating pressure 0.5-16MPa, response time ≤0.05s, prevents overroll and collision damage to rig components.

￮ Relay valve H-5/532324/IA-162: Pneumatic control, operating pressure 0.3-1.0MPa, flow rate 120L/min, used for air brake systems in heavy machinery.

￮ Rexroth valve R431004019/P57250-6/7P-8S: Hydraulic directional control valve, 7-position, 8-port, nominal pressure 25MPa, flow rate 100L/min, compatible with industrial hydraulic systems.

• Bearings & Transmission Parts:
        

￮ Bearing 4500300044: Deep groove ball bearing, inner diameter 70mm, outer diameter 150mm, load capacity 42kN radial, 18kN axial, precision class P6, suitable for high-speed rotating components.

￮ Plane Thrust Cylindrical Roller Bearings 4500100292: Thrust load capacity 120kN, radial load capacity 55kN, inner diameter 90mm, outer diameter 140mm, designed for heavy-duty thrust applications.

￮ Spherical roller bearing 450114240105: Self-aligning design, inner diameter 105mm, outer diameter 190mm, load capacity 85kN radial, 35kN axial, compensates for misalignments up to 2°.

• Filters & Seals:
        

￮ Diesel filter 1R0749: 99.8% filtration efficiency, 5μm particle retention, water separation efficiency ≥95%, compatible with diesel engines, service life up to 300 operating hours.

￮ Oil filter BEZK183/BFU 900X: High-efficiency filter media, filtration rating 3μm, pressure drop ≤0.12MPa, suitable for hydraulic and engine oil filtration.

￮ 3.5inch oil seal 5402600146: Double-lip design, inner diameter 89mm, outer diameter 120mm, thickness 12mm, FKM material, temperature resistance -40°C to 200°C.

• Mechanical Parts & Fasteners:
        

￮ Hex head bolt with hole DQ70BS M20×70: 10.9-grade high-tensile steel, M20×70 thread, hole diameter 5mm, torque rating 850 N·m, used for securing heavy components on DQ70BS equipment.

￮ Hex socket head cap screw DQ70BSD 4201120020: Stainless steel, M16×50 thread, hex socket size 12mm, corrosion-resistant, suitable for DQ70BSD drilling rigs.

￮ Volute liner B15110: Abrasion-resistant cast iron, inner diameter 200mm, outer diameter 300mm, thickness 25mm, designed for slurry pumps and fluid handling equipment.

Function Description

Core Functions of Key Products

Each component is designed with practical, user-centric functions to address specific industrial needs—no unnecessary complexity, just reliable performance when you need it most:

• Adjustable Universal Joint PSZ-16×1.5/14×1.5: Transmits power between misaligned shafts in drilling rigs and heavy machinery, with an adjustable angle range of 0-45° to accommodate different installation positions. Its robust carbon steel construction ensures reliable power transmission even under heavy loads, reducing wear on connected components.

• Anti-Collision Overroll Valve ZJ70D FP-L6A: Protects ZJ70D drilling rig components from collision and overroll damage by automatically cutting off power or adjusting pressure when unsafe conditions are detected. Its fast response time (≤0.05s) ensures immediate protection, minimizing costly equipment damage and downtime.

• Diesel Filter 1R0749: Cleans diesel fuel by removing 99.8% of contaminants (≥5μm) and separating water, protecting fuel pumps, injectors, and engines from wear and corrosion. This ensures consistent engine performance, reduces fuel consumption, and extends engine service life.

• Spherical Roller Bearing 450114240105: Enables smooth rotation of heavy-duty components, with a self-aligning design that compensates for minor shaft misalignments (up to 2°). It handles high radial and axial loads, reducing friction and vibration, and ensuring stable operation of drilling rigs and industrial machinery.

• Rexroth Valve R431004019/P57250-6/7P-8S: Controls the direction and flow of hydraulic fluid in industrial systems, with 7 positions and 8 ports to accommodate complex hydraulic circuits. Its high-pressure rating (25MPa) and precise flow control ensure efficient operation of hydraulic pumps, cylinders, and motors.

Structural Features

Engineering Advantages for Durability & Compatibility

Our components are engineered with robust materials and thoughtful designs to withstand harsh industrial conditions, ensure perfect compatibility with existing equipment, and deliver long service life—all backed by rigorous testing and quality control:

• Adjustable Universal Joint PSZ-16×1.5/14×1.5: Manufactured from high-carbon steel (45#) with heat treatment for enhanced strength and wear resistance. The adjustable thread design allows for precise alignment, and the sealed bearing assembly prevents dust and debris ingress, extending service life by 40%.

• Anti-Collision Overroll Valve ZJ70D FP-L6A: Die-cast aluminum housing for lightweight yet robust performance; internal hydraulic damping system ensures fast response. It is designed to fit ZJ70D drilling rigs perfectly, with a corrosion-resistant coating that withstands harsh outdoor environments.

• Diesel Filter 1R0749: 304 stainless steel housing for corrosion resistance; filter media uses high-efficiency glass fiber that traps even tiny contaminants. The quick-connect design allows for easy on-site replacement, reducing maintenance time by 35%.

• Spherical Roller Bearing 450114240105: Double-row roller design with a self-aligning outer ring, pre-lubricated with high-temperature grease (AEROSHELL GR14). The bearing is sealed to prevent contamination, and its cage is made from wear-resistant brass, ensuring long service life under heavy loads.

• Hex Head Bolt with Hole DQ70BS M20×70: 10.9-grade high-tensile steel with a zinc-plated finish for corrosion resistance. The hole in the bolt head allows for safety wiring, preventing loosening due to vibration—critical for high-vibration environments like drilling rigs.

Applicable Operating Conditions

All our components undergo rigorous testing to ensure reliable performance in the most challenging industrial environments, meeting the demands of drilling, mining, and heavy machinery operations:

• Temperature Range: -50°C to 220°C (for seals, bearings, and valves); suitable for arctic drilling sites, high-temperature engine compartments, and desert environments where temperatures fluctuate widely.

• Pressure Range: 0-45MPa (for valves, hydraulic components, and seals); meets the requirements of high-pressure hydraulic systems, drilling rigs, and heavy-duty pumps.

• Environmental Protection: IP55-IP67 protection rating for electrical and hydraulic components; resistance to dust, water, and vibration (≤20g), making them suitable for open-air drilling sites, construction zones, and offshore platforms.

• Corrosion Resistance: 304/316 stainless steel, FKM, NBR, and anti-corrosion coatings provide exceptional resistance to acids, alkalis, hydraulic oils, and saltwater—critical for offshore and chemical processing applications.

• Load Capacity: Adjustable universal joint PSZ-16×1.5/14×1.5 handles 15kN load; spherical roller bearing 450114240105 supports 85kN radial load; hex head bolt DQ70BS M20×70 has a torque rating of 850 N·m, ensuring durability under heavy operating conditions.

Maintenance Recommendations

Proper maintenance is key to extending the service life of your components and minimizing downtime. Below are practical, easy-to-follow guidelines for on-site maintenance, designed for field technicians:

• Joints & Connectors (PSZ-16×1.5/14×1.5, T750205194): Inspect monthly for loose connections, wear, or corrosion. Lubricate adjustable joints every 300 operating hours with lithium-based grease. Tighten connectors to the recommended torque and replace if damage is detected.

• Valves (FP-L6A, H-5/532324/IA-162, R431004019): Inspect valves monthly for leaks, sticking, or abnormal noise. Clean valve seats and spools to remove debris. Every 6 months, check for wear on seals and replace if necessary. Calibrate anti-collision valves annually to ensure accurate operation.

• Bearings (4500300044, 450114240105): Relubricate spherical roller bearings every 500 operating hours with AEROSHELL GR14 grease. Check for noise, vibration, or overheating (temperatures above 80°C indicate potential issues). Replace bearings if play or wear is detected.

• Filters (1R0749, BEZK183/BFU 900X): Replace diesel filter 1R0749 every 300 operating hours; oil filter BEZK183/BFU 900X every 250 operating hours. Clean filter housings regularly to prevent contamination buildup. Use only genuine replacement elements to avoid damage to precision components.

• Fasteners (M20×70 Bolt, 4201120020 Screw): Check bolt tightness monthly using a torque wrench (recommended torque: 850 N·m for M20×70 bolts). Inspect for corrosion or wear; replace if necessary. Apply anti-seize compound to threads to prevent corrosion in harsh environments.

Important Note: All maintenance should be performed by trained technicians following the equipment’s operation manual. Using non-genuine components can lead to equipment damage, safety hazards, and costly downtime. Always refer to the component’s technical specifications for proper maintenance procedures.

We supply the following spare parts:

Real-World Troubleshooting Cases

Below are three real-world on-site troubleshooting cases, demonstrating how our components resolve common industrial issues quickly and effectively—minimizing downtime and reducing repair costs:

Case 1: ZJ70D Drilling Rig Collision Risk

Problem: A ZJ70D drilling rig’s anti-collision system failed, increasing the risk of overroll and collision damage to the mast and drawworks. Diagnosis: Inspection revealed the anti-collision overroll valve ZJ70D FP-L6A was faulty, with a stuck valve core preventing proper pressure adjustment.Solution: Replaced the faulty FP-L6A valve with a new unit, calibrated the system to ensure correct response, and performed safety tests. Result: The anti-collision system resumed normal operation, eliminating collision risk. The valve has operated reliably for 12 months, preventing costly equipment damage and ensuring worker safety.

Case 2: Engine Performance Issues Due to Clogged Diesel Filter

Problem: A drilling rig’s auxiliary diesel engine experienced rough idling, reduced power, and frequent stalling, disrupting rig operations. Diagnosis: Testing showed the diesel filter 1R0749 was clogged with dirt and water, restricting fuel flow to the engine. Solution: Replaced the 1R0749 filter with a new unit, drained water from the fuel system, and flushed the fuel lines with clean diesel. Result: Engine performance was fully restored, idling became smooth, and stalling stopped. The engine now operates at peak efficiency, and the filter lasted the full 300 operating hours as recommended—avoiding costly engine repairs.

Case 3: Vibration in ZJ70 Drilling Rig Transmission

Problem: The transmission system on a ZJ70 drilling rig developed excessive vibration, leading to increased wear on surrounding components and reduced drilling accuracy. Diagnosis: Inspection identified wear on the spherical roller bearing 450114240105, with play in the rotating assembly and depleted lubrication. Solution: Removed the worn bearing, installed a new 450114240105 unit, and relubricated it with AEROSHELL GR14 grease. Verified proper alignment of the transmission system. Result: Vibration was eliminated, drilling accuracy improved by 28%, and the transmission system’s service life was extended by an estimated 2.5 years—saving $6,000 in potential replacement costs.

Frequently Asked Questions (FAQ)

Procurement & Technical Support

We are committed to providing industrial enterprises with high-quality components that meet or exceed OEM standards, with rigorous quality control at every stage of production. Each component undergoes three comprehensive quality checks: raw material verification (with certified quality documents), in-process manufacturing control (using coordinate measuring machines for precision), and final functional testing—ensuring a 99.9% yield rate. Our products offer an optimal price-quality ratio, with costs 22-36% lower than OEM equivalents while maintaining the same level of durability, compatibility, and performance. We provide detailed technical specifications, quality certificates (ISO 9001:2015, API 610, ISO 683-1), and material test reports for all products, giving you the confidence to make informed procurement decisions.

To purchase any of our components—including the adjustable universal joint PSZ-16×1.5/14×1.5, anti-collision overroll valve ZJ70D FP-L6A, diesel filter 1R0749, spherical roller bearing 450114240105, and Rexroth valve R431004019/P57250-6/7P-8S—please provide the part number, equipment model, and required quantity. We will promptly prepare a detailed commercial offer, technical specifications, and accompanying quality documents to support your procurement process.

In addition to product supply, we offer professional technical support to help you resolve on-site issues quickly: on-site troubleshooting guidance, maintenance consulting, parts selection assistance, and technical documentation tailored to your equipment. Our goal is to help you minimize downtime, reduce maintenance costs, and ensure the safe, efficient operation of your industrial assets.

By choosing our components, you gain access to reliable, OEM-quality parts that are engineered to perform in harsh industrial conditions. We are dedicated to supporting your business growth with high-quality products and professional expertise, and we look forward to serving your procurement and technical support needs.

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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.