BK-8-7A, V-7, E900-11000022, P50973-1/R431002831

Introduction

In the industrial operation field, the stability and durability of core components directly determine the efficiency of equipment operation, production safety, and long-term operational costs. Whether it is drilling rigs (ZJ-45, ZJ-40, ZJ70, ZJ70D), boilers (WNS 0.5-1.0-Y/Q, WNS), water pumps, or power transmission systems, each component plays an irreplaceable role. This document focuses on the full range of industrial parts including BK-8-7A Semicircle retaining ring, Shuttle valve V-7, gear E900-11000022, Driller valve reset P50973-1/R431002831, and more than 50 other core components. We aim to provide targeted product solutions for professional users in oil drilling, industrial boiler operation, mechanical equipment maintenance, and other fields, solving the pain points of difficult component matching, poor compatibility, and short service life, while ensuring that each product meets industrial-grade quality standards and adapts to harsh working environments.

Core Purpose

This full series of industrial parts is mainly designed to match and replace the core components of drilling equipment (ZJ-45, ZJ-40, ZJ70, ZJ70D), industrial boilers (WNS 0.5-1.0-Y/Q, WNS), water pumps (1W5644), power take-off (PTO 5000950002), and other industrial equipment. It is committed to solving the key needs of target users: 1) High-precision matching of components to avoid operation failures caused by incompatible models; 2) Strong wear resistance and corrosion resistance to adapt to high-pressure, high-temperature, and dusty industrial environments; 3) Easy installation and maintenance to reduce equipment downtime and maintenance costs; 4) Stable performance to ensure long-term continuous operation of equipment. The product covers retaining rings, valves, gears, bearings, seals, and other categories, providing one-stop component supply solutions for equipment maintenance, overhaul, and spare parts replacement.

Product Overview

Product Range

Our product line covers more than 50 types of industrial core components, including but not limited to: Semicircle retaining ring (BK-8-7A), Shuttle valve (V-7), Gear (E900-11000022), Driller valve reset (P50973-1/R431002831), Boiler pressure gauge three-way cock (X14S-16T DN15), High pressure ball valve (YQ2-32H NPT1-1/2″), Nut (DQ70 M16 4.10.11.010), Explosion-proof conductor radio (Fuda FD-BYJ 24V 50W), Stud bolt (532610432Q), O-ring (5300100243, 5300100076, 530301011250070000), Brake belt (zj-45 106.04.50.19), Water pump (1W5644), PTO (5000950002), Punching cylinder (YG100), Bearing (20615-1 inboard, 450102091090, Thrust Radial Ball Bearings 4500300019), Valve plate (VA20-Y44044/VA20-PB44), Two-position three-way air control reversing valve (3801950001), Output shaft (P2400364AA), Load Guy Adjuster (Z04220000001AA), Piston wear ring (3in 60201-02-01j-15), Gear hub (515911), Bidirectional linker body (ZJ70 PSZ65-1/4″-M22X1.5), Eccentric wheel bearing (430129150464777019), Cross head (AH1001010401), Starter (207-1549 right CATC27), Tee (ZJ70D 9705218093 R1-M36×2-NPT1/4), Anti-collision ring valve (512704070200050601), Fitting (JB1883-77.5), Foot Control Throttle Device (TMR7-6L-F), Faucet (F200-7DH), Faucet flushing pipe packing (SL-120), Link pin (P2001386AA), PCB REGULATOR CARDS (NOWA/NFCB.DS3800NOWA1K1K/ DS3800NFCB 1U1U), Medium pressure water loss meter (ZNS-2), Oil pump gear assembly (AH100101061200), Pulley (ZJ45 101.04.07 forging), Thickener slurry cup (8040D10-SP1 08-0045), Guide belt (W24-09-302), Pneumatic control valve (ZJ-40 PSZ75A DG18V), Rear oil seal bushing (3006237), Grease nozzle (4B4550), O-type sealing ring (DQ70BSC M0146405.7 464×5.7), Fuel injector (4W7019), Friction disc (W36-07-912), Boiler coupling (WNS L8Z/2), Quad valve (A35-AA4-MB53-MA53*3-Y12), Filter element (6L4714), Connecting rod (M06 W1 5262052), Cover plate liner (B15017 / B15017TL1). All products are produced in strict accordance with industrial standards, with 100% model matching rate and 99.8% pass rate after factory inspection.

Function Description

Key Component Functions

• Valve Series (V-7, P50973-1/R431002831, YQ2-32H, 3801950001, VA20-Y44044/VA20-PB44): Shuttle valve V-7 realizes two-way fluid control, with a response time of ≤0.05s, ensuring rapid switching of fluid paths; Driller valve reset P50973-1/R431002831 is specially designed for drilling rigs, with a reset accuracy of ±0.02mm, effectively avoiding valve jamming; High pressure ball valve YQ2-32H NPT1-1/2″ can withstand a maximum pressure of 32MPa, suitable for high-pressure fluid transmission systems; Two-position three-way air control reversing valve 3801950001 adopts pneumatic control, with a service life of more than 100,000 cycles, ensuring stable operation of air circuits.

• Bearing & Seal Series (20615-1, 450102091090, 5300100243, 3006237): Inboard bearing 20615-1 has a rated load of 28.5kN, with a friction coefficient of ≤0.0015, reducing energy loss during operation; O-ring 5300100243 is made of nitrile rubber, with a temperature resistance range of -40℃ to 120℃ and a compression set of ≤15%, ensuring good sealing performance in harsh environments; Rear oil seal bushing 3006237 adopts wear-resistant alloy material, with a service life of more than 8,000 working hours.

• Gear & Transmission Series (E900-11000022, 515911, AH100101061200): Gear E900-11000022 is made of 40Cr alloy steel, after carburizing and quenching treatment, the hardness reaches HRC58-62, with a tooth surface wear resistance increased by 30% compared with ordinary gears; Oil pump gear assembly AH100101061200 has a gear accuracy of GB 6级, ensuring stable oil supply, with a flow rate error of ≤±2%.

• Special Components (BK-8-7A, ZJ-45 brake belt, 1W5644, 207-1549): BK-8-7A Semicircle retaining ring is used for axial positioning of rotating components, with a tensile strength of ≥800MPa, ensuring no deformation during high-speed operation; ZJ-45 brake belt 106.04.50.19 has a friction coefficient of 0.45, with a braking distance of ≤0.5m under rated load, ensuring safe braking of drilling rigs; Water pump 1W5644 has a head of 50m and a flow rate of 15m³/h, suitable for industrial water supply and boiler water circulation; Starter 207-1549 (right) CATC27 is compatible with CAT C27 engines, with a starting current of 24V and a starting success rate of 99.9% in low-temperature environments (-20℃).

Structural Features

Overall Structural Advantages

All products adopt industrial-grade structural design, combining precision manufacturing technology to ensure stability and durability. The key structural features are as follows:

1. High-Strength Material Selection: Most mechanical components (gears, studs, cross heads) are made of 40Cr, 45# steel, or alloy steel, after heat treatment (carburizing, quenching, tempering), the tensile strength is ≥700MPa, and the impact toughness is ≥60J/cm², which can withstand high load and impact in industrial operations.

2. Precision Machining: Adopt CNC machining technology, with a machining accuracy of ±0.01mm, ensuring the matching accuracy between components. For example, the gear tooth profile error is ≤0.02mm, and the bearing inner and outer diameter tolerance is in line with GB/T 307.1-2015 standard, avoiding operation failures caused by poor matching.

3. Sealing & Corrosion Resistance Design: Sealing components (O-rings, oil seal bushings, packing) adopt nitrile rubber, fluorine rubber, or polytetrafluoroethylene materials, which have good oil resistance, corrosion resistance, and high-temperature resistance. The surface of metal components is treated with galvanizing, chrome plating, or spray painting, with a corrosion resistance grade of ≥C4 (in accordance with ISO 12944-2 standard), extending the service life in humid and corrosive environments.

4. Easy Installation & Disassembly: The structural design is optimized to match the original equipment interface, without modifying the equipment, and can be installed and disassembled with standard tools. For example, the stud bolt 532610432Q adopts a hexagonal head design, which is easy to tighten; the foot control throttle device TMR7-6L-F has a modular structure, which is convenient for maintenance and replacement.

Applicable Working Conditions

This series of industrial parts is widely applicable to various harsh industrial working conditions, and the specific applicable scenarios are as follows:

1. Oil Drilling Industry

Suitable for ZJ-45, ZJ-40, ZJ70, ZJ70D drilling rigs, including components such as driller valve reset P50973-1/R431002831, brake belt 106.04.50.19, cross head AH1001010401, and bidirectional linker body ZJ70 PSZ65-1/4″-M22X1.5. It can adapt to high-temperature (≤150℃), high-pressure (≤35MPa), dusty, and vibrating working environments at drilling sites, ensuring the continuous operation of drilling rigs.

2. Industrial Boiler System

Matching WNS 0.5-1.0-Y/Q, WNS boilers, including pressure gauge three-way cock X14S-16T DN15, boiler coupling L8Z/2, and medium pressure water loss meter ZNS-2. It can work stably under high temperature (≤200℃) and high pressure (≤1.0MPa), with good sealing performance and pressure resistance, ensuring the safe operation of the boiler system.

3. Mechanical Equipment & Power Transmission

Applicable to water pumps (1W5644), PTO (5000950002), punching cylinders (YG100), and other equipment, including gears E900-11000022, bearings 450102091090, and output shafts P2400364AA. It can adapt to long-term continuous operation, high-speed rotation (≤3000r/min), and heavy load working conditions, with low noise and low energy consumption.

4. Other Industrial Fields

Including mining, chemical, and construction machinery, suitable for components such as explosion-proof conductor radio Fuda FD-BYJ 24V 50W, two-position three-way air control reversing valve 3801950001, and filter element 6L4714, which can adapt to flammable, explosive, and corrosive working environments, meeting the special needs of different industries.

Maintenance & Care Suggestions

Proper maintenance and care can effectively extend the service life of the components, reduce maintenance costs, and ensure the stable operation of the equipment. The following are targeted maintenance suggestions:

1. Daily Inspection

Check the connection status of components (stud bolts, link pins) every 24 working hours, and tighten them in time if there is looseness; check the sealing performance of O-rings, oil seals, and packing, and replace them immediately if there is oil leakage or air leakage; check the surface wear of gears, bearings, and friction discs, and record the wear degree.

2. Regular Lubrication

Lubricate bearings, gears, and other rotating components every 500 working hours. Use industrial-grade lubricating oil (such as 46# anti-wear hydraulic oil) that meets the standard, and the lubricating oil temperature should be controlled between 40℃ and 80℃; the grease nozzle 4B4550 should be cleaned regularly to ensure smooth lubricating oil injection.

3. Regular Replacement

According to the service life of the components, replace them regularly: O-rings and packing should be replaced every 1000-1500 working hours; bearings and friction discs should be replaced every 8000-10000 working hours; gears and valve plates should be replaced every 15000-20000 working hours. For components working in harsh environments, the replacement cycle should be shortened by 30%.

4. Storage Requirements

Unused components should be stored in a dry, ventilated, and clean warehouse, avoiding moisture, corrosion, and collision; sealing components should be stored in a cool environment, avoiding direct sunlight, and the storage temperature should be controlled between 0℃ and 25℃; metal components should be coated with anti-rust oil to prevent rust.

We supply the following spare parts:

On-Site Fault Maintenance Cases

The following are 3 real on-site fault cases, providing practical maintenance reference for users, helping to quickly solve component-related faults and reduce equipment downtime:

Case 1: Drilling Rig Brake Failure

Fault Phenomenon: ZJ-45 drilling rig brake system fails during operation, the braking distance is significantly longer, and the brake is weak. Fault Cause: After inspection, the ZJ-45 brake belt 106.04.50.19 is severely worn, the friction coefficient is reduced, and the brake lining is cracked. Maintenance Solution: Replace the brake belt with a new ZJ-45 106.04.50.19 brake belt, adjust the brake clearance to 0.3-0.5mm, and test run. Result: The braking distance returns to ≤0.5m, and the brake performance is restored to the standard, ensuring the safe operation of the drilling rig. Key Tip: Regularly check the wear degree of the brake belt, and replace it in time when the wear amount exceeds 3mm.

Case 2: Boiler Water Leakage

Fault Phenomenon: WNS 0.5-1.0-Y/Q boiler has water leakage at the pressure gauge connection, and the pressure gauge reading is unstable. Fault Cause: The pressure gauge three-way cock X14S-16T DN15 is worn, the sealing surface is damaged, and the sealing performance is lost. Maintenance Solution: Replace the three-way cock with a new X14S-16T DN15, apply high-temperature resistant sealant on the sealing surface, and tighten it according to the specified torque (15-20N·m). Result: The water leakage is completely solved, the pressure gauge reading is stable, and the boiler operates normally. Key Tip: Check the sealing performance of the three-way cock every month, and clean the valve core regularly to avoid blockage.

Case 3: Water Pump Abnormal Noise

Fault Phenomenon: 1W5644 water pump produces abnormal noise during operation, and the flow rate decreases. Fault Cause: The inboard bearing 20615-1 is worn, the clearance exceeds 0.05mm, and the bearing is stuck. Maintenance Solution: Disassemble the water pump, replace the 20615-1 inboard bearing, add 46# anti-wear hydraulic oil, and check the coaxiality of the pump shaft. Result: The abnormal noise disappears, the flow rate returns to 15m³/h, and the water pump operates stably. Key Tip: Regularly check the bearing temperature (not exceeding 80℃) and lubrication status, and replace the bearing in time if there is abnormal noise.

Frequently Asked Questions (FAQ)

Procurement Guide

We provide a full range of industrial parts including BK-8-7A, V-7, E900-11000022, P50973-1/R431002831, covering all the models listed in this document. All products are produced in strict accordance with international industrial standards (ISO, GB) and original equipment specifications, with high precision, strong compatibility, and stable performance. We can provide customized matching services according to your equipment model and working conditions, ensuring that each component can perfectly adapt to your equipment. Whether you need spare parts replacement, equipment maintenance, or batch procurement, we can provide high-quality products and professional technical support. To ensure that you get the most suitable components, please provide the following information when purchasing: 1) Equipment model and specification; 2) Component model or original part number; 3) Working environment (temperature, pressure, medium, etc.); 4) Purchase quantity and usage purpose. We will provide you with a competitive quotation and detailed product parameters, and provide technical guidance for installation and maintenance to help you solve equipment operation problems and reduce production costs.

Conclusion

This series of industrial parts, including BK-8-7A Semicircle retaining ring, Shuttle valve V-7, gear E900-11000022, and more than 50 other core components, is committed to providing high-quality, high-compatibility, and durable solutions for users in oil drilling, industrial boiler, and mechanical equipment fields. With high-strength material selection, precision machining, and optimized structural design, the products can adapt to various harsh working conditions, solve the pain points of difficult component matching, short service life, and high maintenance costs, and help users improve equipment operation efficiency and reduce production risks. We adhere to the principle of "quality first, customer-oriented", and provide one-stop procurement and technical support services. Whether you need a single component or batch procurement, we are your reliable partner for industrial parts supply.

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