How to operate hydraulic test fittings safely?

Julho 15, 2024Julho 15, 2024 por 爱金流体

How to operate hydraulic test fittings safely?

Hydraulic test fittings are essential components in hydraulic systems, widely utilized in fields such as construction machinery, industrial equipment, aerospace, automotive manufacturing, and oil and gas.

Their primary role is to measure and monitor system pressure, ensuring stable operation and safety. However, improper use or poor maintenance can lead to system failures and potentially severe safety incidents.

Therefore, mastering the safe operation guidelines for pressure measuring joints is crucial. This paper delves into the correct operation and maintenance practices for pressure measurement joints to ensure their safety and reliability in practical applications.

1. Basic structure and operation principle of pressure-measuring connectors

A pressure measuring fitting typically comprises a body, seals, and connecting components. Its function is to detect pressure fluctuations within a hydraulic system, delivering real-time data that allows operators to monitor and adjust the system’s performance accordingly. Hydraulic test fittings are engineered for optimal tightness and stability in high-pressure environments, effectively preventing fluid leaks and potential system failures.

2. Basic principles of safe operation

2.1 Knowledge of equipment

Before operating a pressure measuring fitting, it’s essential to thoroughly understand its structure, working principles, and operating instructions. Familiarize yourself with the equipment’s performance parameters, including maximum working pressure, temperature range, and suitable media. This knowledge ensures that the equipment operates within its design limits, preventing any operational issues.

2.2 Wear appropriate protective equipment

Always utilize suitable protective equipment, such as gloves, goggles, and protective clothing, when operating pressure-measuring fittings. This gear is crucial for preventing injuries from high-pressure fluid leaks and ensures operator safety.

2.3 Checking the status of equipment

Before operation, thoroughly inspect the condition of the pressure measuring fitting to ensure there are no signs of damage or wear. Pay special attention to the seals, which must be intact to prevent leaks. Additionally, check the connecting parts for tightness to ensure a secure and reliable connection.

3. Safe practices for installation and dismantling

3.1 Installation of hydraulic test fittings

-Selecting an Appropriate Location: Choose a suitable spot within the hydraulic system for installation to ensure the measurement point accurately reflects the system’s operating pressure.

– Cleaning Connecting Parts: Prior to installation, thoroughly clean both the pressure measuring fitting and the system’s connecting parts to remove any impurities or contaminants that might compromise the seal.

– Using the Right Tools: Employ the correct tools for installation and avoid applying excessive force to prevent damage to the fittings or connecting components. Adhere to the equipment manufacturer’s installation instructions to ensure proper setup.

3.2 Disassembly of hydraulic test fittings

– Pressure Relief: Before removing the pressure measurement fitting, ensure that the system is fully depressurized to eliminate any residual pressure and prevent injuries from fluid discharge.

– Equipment Protection: During disassembly, carefully protect the pressure measurement fittings and connecting parts from impacts and damage. After removal, store the connectors properly to prevent contamination and damage.

4. Safety precautions in operation

Monitoring System Pressure: During operation, continuously monitor the system pressure in real-time to ensure it remains within a safe range. Avoid overpressure conditions to prevent damage to the pressure measuring fitting and the hydraulic system.

Avoiding Sudden Pressure Changes: Prevent sudden pressure changes during operation to avoid shocks to the pressure measuring fitting and the hydraulic system. Adjust the system pressure gradually to ensure a smooth transition.

Compliance with Operating Procedures: Adhere strictly to the operating procedures and avoid unauthorized actions. If any abnormal conditions arise during operation, stop immediately, identify the cause, and address it to ensure system safety.

5. Safe practices for maintenance and upkeep

5.1 Regular inspection and maintenance

– Inspection of seals: Regularly inspect the seals of the pressure measuring joints, and replace them in time if they are found to be aged or damaged. Select high-performance sealing materials to improve the sealing effect and service life.

– Cleaning the equipment: Clean the pressure measurement fitting regularly to prevent dust, impurities and corrosive substances from entering the inside of the fitting. Use appropriate cleaning agents and tools to ensure that both the inside and outside of the fitting are kept clean.

5.2 Lubrication and fastening

– Lubrication: For pressure-measuring fittings that require frequent operation, lubricate regularly to reduce wear and operating resistance. Select a suitable lubricant and avoid lubricants that are harmful to the sealing material.

– TIGHTENING: Periodically check the tightness of the joints to ensure that they are securely connected. For loose joints, tighten them with appropriate tools to prevent leakage and system instability.

5.3 RAM

– Maintenance records: Detailed records of each maintenance and servicing, including inspection items, problems found and treatment measures. Through the maintenance records, the history of equipment use can be traced, potential problems can be found and dealt with in a timely manner.

– File management: Establish a file management system for the pressure measuring joints, keep the technical data, operation instructions and maintenance records of the equipment, etc., so as to facilitate the daily management and maintenance.

6. Emergency response measures

Regular Inspection and Maintenance:

Seal Inspection: Regularly examine the seals of pressure measuring joints and promptly replace any that are aged or damaged. Use high-performance sealing materials to enhance sealing effectiveness and extend service life.
Equipment Cleaning: Routinely clean the pressure measuring fitting to prevent dust, impurities, and corrosive substances from entering. Use appropriate cleaning agents and tools to ensure both the interior and exterior of the fitting remain clean.

Lubrication and Fastening:

Lubrication: For pressure measuring fittings that require frequent operation, lubricate regularly to minimize wear and operational resistance. Choose a suitable lubricant and avoid those that could harm the sealing material.
Tightening: Periodically check the tightness of the joints to ensure secure connections. Use appropriate tools to tighten any loose joints, preventing leaks and system instability.

Record and Maintenance (RAM):

Maintenance Records: Keep detailed records of each maintenance session, including inspection items, identified issues, and corrective actions taken. These records help trace the equipment’s usage history and identify potential problems early.
File Management: Establish a file management system for pressure measuring joints, maintaining technical data, operation instructions, and maintenance records. This system facilitates daily management and maintenance activities.

7. Case studies

Case 1: Safe Operation of hydraulic test fittings in a Chemical Plant

In a chemical plant, numerous hydraulic test fittings were utilized within the hydraulic system. An incident occurred when an operator failed to perform the necessary pressure relief operation, resulting in a high-pressure liquid spray during disassembly and causing injury.

Following an investigation, the chemical plant developed detailed operating procedures and provided comprehensive training to the operators. These measures significantly improved the operational safety of the pressure measuring joints and prevented similar incidents from occurring.

Case 2: Maintenance of pressure-measuring fittings at a manufacturing company

A manufacturing company employed high-pressure hydraulic test fittings in its hydraulic press equipment. Due to neglect in timely maintenance and repair, the seals of the pressure-measuring fittings deteriorated and became damaged, leading to system leaks.

To address the issue, the company took the following actions: replaced all deteriorated seals with high-performance sealing materials; regularly inspected and cleaned the pressure-measuring fittings to ensure optimal condition; and trained operators to enhance their maintenance and operation skills. These measures effectively resolved the leakage problem and improved both the operational efficiency and safety of the equipment.

Hydraulic test fittings are crucial components in hydraulic systems, and their safe operation and maintenance are directly linked to the stability and safety of the system. By understanding the equipment’s structure, wearing appropriate protective gear, checking the equipment’s condition, installing and removing it correctly, monitoring system pressure, avoiding sudden pressure changes, adhering to operating procedures, conducting regular inspections and maintenance, maintaining thorough records and files, and implementing emergency response measures, you can ensure the safety and reliability of pressure-testing fittings in practical applications.

Real-world case studies demonstrate that following scientific operation and maintenance protocols not only enhances the service life and performance of pressure measuring joints but also effectively prevents safety incidents. Therefore, attention to the safe operation specifications of pressure measuring joints is essential for ensuring the stable operation of hydraulic systems and the safety of operators.

Common problems and solutions during pressure testing

Julho 11, 2024Julho 11, 2024 por 爱金流体

fabricante do acoplamento de verificação de pressão

Common problems and solutions during pressure testing

Pressure testing is essential for ensuring the proper operation and safety of hydraulic systems and equipment. It helps detect weaknesses, verify design pressures, and identify potential leaks within the system.

However, various issues may arise during pressure testing. If these problems are not addressed promptly and effectively, they can affect test results and even jeopardize system safety.

This article provides an in-depth analysis of common problems encountered during pressure testing and offers practical solutions. We will also discuss these issues through real-world examples. By offering detailed analysis and discussion, this article aims to provide practical guidance to ensure the stability and safety of hydraulic systems.

1. Common problems during pressure testing

1.1 Leakage

Leaks are among the most common issues encountered during pressure testing. They can occur at system connections, seals, or along piping. The causes of leaks are varied and may include deteriorated seals, improper installation, or defective materials.

**Solutions:**

Inspection and Replacement of Seals: Regularly inspect the condition of seals. Any seals that are deteriorated or damaged should be promptly replaced to prevent potential leakage.

Correct Installation: Ensure that all connections and piping are installed correctly, using appropriate methods and tools. Proper tightening and sealing of each component are essential to prevent leaks.

Material Selection: Choose materials that are corrosion-resistant and capable of withstanding high pressures. Selecting the right materials for the system’s working environment enhances the overall reliability of the system.

By implementing these solutions, the likelihood of leaks can be significantly reduced, ensuring the integrity and safety of the hydraulic system during pressure testing.

1.2 Pressure fluctuations

Pressure fluctuation refers to unstable pressure during testing, which can be caused by poor system design, unstable pressure sources, or equipment failure.

**Solutions:**

Optimized System Design: Ensure that the system is well-designed to prevent sudden changes in pressure. A robust design minimizes the likelihood of pressure fluctuations and significantly reduces associated problems.

Stable Pressure Source: Utilize a reliable pressure source that can provide continuous and stable pressure, ensuring the system operates normally and efficiently.

Equipment Maintenance: Conduct regular inspections and maintenance of pressure source equipment. Timely identification and resolution of potential issues are crucial to maintaining optimal working conditions and preventing pressure instability.

Implementing these solutions will help stabilize pressure during testing, ensuring the system’s reliability and accuracy.

1.3 Inaccurate meter readings

During pressure testing, inaccurate meter readings can compromise the accuracy of the test results. This issue may arise due to improper calibration of the gauge, incorrect mounting position, or gauge malfunction.

**Solutions:**

Periodic Calibration of Meters: Calibrate the meters at regular intervals to maintain accurate readings and ensure the reliability of the test data.

Select an Appropriate Mounting Location: Install the meter in a suitable location that minimizes vibration and interference, which can affect the accuracy of the readings.

Replacement of Malfunctioning Meters: Promptly replace any malfunctioning meters to maintain the accuracy and integrity of the test results.

By addressing these factors, the accuracy of meter readings can be ensured, thereby enhancing the reliability of the pressure test outcomes.

1.4 Temperature effects

Temperature variations can significantly impact pressure test results, particularly in extreme high or low-temperature environments. These fluctuations can cause materials to expand or contract, affecting the system’s sealing and pressure stability.

**Solutions:**

Selection of Temperature-Resistant Materials: Choose materials that are resistant to temperature changes based on the system’s working environment. This ensures that the system maintains stable performance under extreme temperature conditions.

Implement Temperature Compensation Mechanism: Introduce a temperature compensation mechanism during testing to minimize the impact of temperature fluctuations on the results. This helps ensure the accuracy and reliability of the pressure tests.

By addressing temperature-related issues, the stability and accuracy of pressure test results can be significantly improved.

1.5 Connectivity issues

Connection problems are a common challenge during pressure testing, often caused by mismatched fitting types, improper installation, or loose connections.

**Solutions:**

Selecting the Appropriate Fitting Type: Choose fittings that are compatible with the system design and suitable for the working environment to ensure proper matching with the rest of the system.

Correct Installation of Fittings: Follow standard methods and procedures for installing fittings to ensure a secure and reliable connection.

Regular Inspection and Tightening: Conduct periodic inspections of connection points and promptly tighten any loose parts to maintain a solid and dependable connection.

By addressing these connection issues, the reliability and effectiveness of pressure testing can be significantly enhanced.

2. Solutions for pressure testing

2.1 Development of a Detailed Test Plan

Before conducting a pressure test, it is crucial to develop a comprehensive test plan that outlines the purpose, scope, methodology, steps, and expected outcomes. A detailed test plan helps clarify the objectives and ensures that the testing process is systematic and organized.

2.2 Use of High-Quality Test Equipment

Using high-quality test equipment is essential for obtaining accurate and reliable results. Select certified and calibrated equipment, and ensure that it is in optimal working condition before use.

2.3 Training and Education

Provide thorough training and education for operators to equip them with the necessary knowledge and skills for pressure testing. Training should cover the use of test equipment, execution of test procedures, and identification and resolution of common issues.

2.4 Recording and Analysis

During the pressure test, meticulously record all data and results, including pressure, temperature, time, and environmental conditions. Analyzing this data helps identify potential problems and implement timely corrective measures.

2.5 Development of Contingency Plans

Develop a comprehensive contingency plan to address any emergencies that may arise during the testing process. The plan should include procedures for handling leaks, equipment failures, and safety measures to ensure the testing process remains safe and efficient.

By implementing these strategies, the reliability and accuracy of pressure testing can be significantly enhanced, ensuring the safe and effective operation of hydraulic systems.

3. Case Studies

Case 1: Pressure Testing in a Chemical Plant

During the pressure testing of a new piping system at a chemical plant, multiple leaks were detected. Upon investigation, it was determined that the primary causes of the leaks were aging seals and improper installation. To address these issues, the chemical plant implemented the following measures:

– Replaced all deteriorated seals with corrosion-resistant, high-performance sealing materials to enhance durability and reliability.

– Conducted a thorough inspection and tightening of all connections to ensure that the installation complied with relevant codes and standards.

– Provided comprehensive training to operators to enhance their installation and operational skills.

By taking these steps, the chemical plant effectively resolved the leakage issues and ensured the safety and stability of the piping system.

Case II: Pressure Testing in a Pharmaceutical Company

During a pressure test of the hydraulic system at a pharmaceutical company, significant pressure fluctuations were detected. Analysis revealed that these fluctuations were caused by an unstable pressure source and poor system design. To address these issues, the pharmaceutical company implemented the following measures:

– Replaced the existing pressure source with more stable equipment to ensure a continuous and stable pressure supply.

– Redesigned the hydraulic system, optimizing the piping layout and connections to enhance overall system stability.

– Introduced an automated control system to monitor and regulate pressure in real-time, ensuring consistent system pressure.

By implementing these measures, the pharmaceutical company successfully resolved the issue of pressure fluctuations, significantly improving the operational efficiency and stability of the hydraulic system.

Case IV: Pressure Testing at an Aerospace Company

During pressure testing of an aircraft hydraulic system at an aerospace company, significant effects of temperature variations on the test results were observed. Analysis determined that these temperature changes caused material expansion and contraction, which impacted the system’s sealing and pressure stability. To address this issue, the aerospace company implemented the following measures:

– Selected temperature-resistant materials suitable for both high and low-temperature environments to ensure stable performance despite temperature fluctuations.

– Introduced a temperature compensation mechanism during the testing process to adjust system parameters in real-time, ensuring the accuracy of the test results.

– Controlled the test environment to minimize the impact of temperature variations on the testing process.

By adopting these measures, the aerospace company successfully mitigated the issues caused by temperature variations, significantly enhancing the accuracy and reliability of the pressure tests.

Case V: Pressure Testing in a Shipping Company

During a pressure test of a ship’s hydraulic system at a shipping company, issues were identified at multiple joints. Inspection revealed that these problems were due to mismatched joint types and improper installation. To resolve these issues, the shipping company implemented the following measures:

– Selected appropriate fittings that were compatible with the system, ensuring they matched the rest of the hydraulic components.

– Reinstalled the connectors following correct methods and procedures to guarantee a secure and reliable connection.

– Conducted thorough inspections and tightened all connections to ensure system stability and safety.

By taking these steps, the shipping company successfully addressed the connection issues, ensuring the normal operation and reliability of the ship’s hydraulic system.

Pressure testing is a vital procedure for ensuring the proper functioning and safety of hydraulic systems and equipment. During testing, issues such as leaks, pressure fluctuations, inaccurate gauge readings, temperature effects, and connection problems can arise. These challenges can be effectively managed through the implementation of detailed test plans, the use of high-quality testing equipment, comprehensive operator training, meticulous recording and analysis of test data, and robust contingency plans. These measures ensure the accuracy and reliability of pressure tests.

Analyzing real-world cases demonstrates that scientific pressure testing methods and strategies not only address issues encountered during testing but also enhance the operational efficiency and safety of hydraulic systems. Therefore, focusing on the identification and resolution of problems during the pressure testing process is crucial for maintaining the stable operation of hydraulic systems.

Hydraulic Pressure Fittings Applied in Various Industries

Julho 5, 2024Julho 1, 2024 por 爱金流体

Hydraulic Pressure Fittings Applied in Various Industries

Pressure measuring fittings are essential hydraulic components. They monitor pressure in hydraulic systems to ensure safety and stability. These fittings are used in many industries, including construction, industrial equipment, aerospace, automotive manufacturing, and oil & gas. Each industry has different performance requirements.

The performance requirements for pressure measuring fittings differ across industries. Specific examples demonstrate the practical importance of these fittings.

In this article, we will explore how pressure-measuring fittings are used across various industries. We’ll analyze their key roles and impacts through specific case studies.

1. In the field of construction machinery

In the construction machinery industry, pressure measuring fittings are indispensable components. Equipment such as excavators, bulldozers, and loaders must endure harsh environments for extended periods, demanding highly reliable hydraulic systems.

Pressure measuring fittings play a critical role by continuously monitoring hydraulic system pressure in real time. This real-time monitoring ensures that the equipment operates within the optimal pressure range, thereby enhancing reliability, preventing system failures, and maintaining peak performance and safety.

Excavators, bulldozers, loaders, and similar equipment often operate in harsh environments for prolonged periods. This demanding usage necessitates exceptional reliability in their hydraulic systems. To achieve this, pressure measuring fittings are employed to monitor the hydraulic system’s pressure in real time. These fittings ensure that the equipment operates within the optimal pressure range, thereby preventing potential system failures and maintaining peak performance and safety standards.

Case Study: Excavator Application

A leading construction machinery company incorporates high-performance pressure measuring fittings in the hydraulic systems of its excavators. Given that excavators are required to function in high-intensity work environments, the pressure resistance and durability of these fittings are crucial.

These pressure measuring fittings are crafted from the latest high-strength alloy materials and utilize advanced sealing technology. This design enables them to perform reliably for extended periods under high-pressure and high-temperature conditions, effectively preventing leaks and system failures.

Through regular maintenance and servicing, the company’s excavators have significantly enhanced their operational efficiency and safety. The robust construction of these fittings ensures that the hydraulic systems remain reliable, thereby optimizing performance and reducing downtime. This meticulous approach to equipment maintenance has contributed to the company’s reputation for producing durable and efficient machinery capable of withstanding the rigors of demanding construction environments.

2. Industrial Equipment Sector

Industrial equipment such as hydraulic presses, die casting machines, and injection molding machines heavily rely on pressure measuring fittings. These fittings ensure the systems operate smoothly under high pressure and high temperature conditions. They provide accurate pressure data, enabling operators to adjust system parameters in a timely manner. This real-time data optimizes equipment performance and ensures an efficient, stable production process.

Case Study: Hydraulic Press Application in a Manufacturing Company

A manufacturing company has implemented new high-pressure gauge fittings in its hydraulic press equipment. Precise pressure control is essential for hydraulic presses during production, making the accuracy and stability of these fittings crucial.

By utilizing high-performance pressure measuring fittings, the company has notably enhanced the quality of its hydraulic products. This improvement has led to a significant reduction in scrap rates and an increase in production efficiency. The reliable performance of these fittings ensures that the hydraulic presses maintain consistent pressure control, thereby optimizing the overall manufacturing process and ensuring high-quality output.

3. Automobile Manufacturing Sector

In the automotive manufacturing sector, hydraulic systems play a crucial role in braking, steering, and suspension systems. Pressure measuring fittings are essential for real-time pressure monitoring in these systems, ensuring the vehicle’s safety performance under various operating conditions.

Case Study: Braking System Application for an Automobile Manufacturer

A renowned automobile manufacturer has integrated intelligent pressure measurement fittings into the braking system of its latest models. These advanced fittings combine a pressure sensor with data transmission capabilities, allowing real-time pressure data to be sent to the vehicle’s electronic control system. This continuous data stream enables the system to dynamically adjust brake pressure, significantly enhancing braking performance and vehicle safety.

The manufacturer has also conducted extensive testing and validation to ensure these pressure-measuring fittings maintain optimal performance across different climatic conditions and driving environments. This rigorous testing ensures that the fittings provide consistent, reliable data, contributing to a safer and more dependable driving experience for consumers. By incorporating these intelligent fittings, the automaker has improved the overall safety and reliability of its vehicles, reinforcing its commitment to quality and innovation in automotive design.

4. Oil and Gas Sector

In the oil and gas industry, hydraulic systems must function in complex environments with significant pressure fluctuations and exposure to corrosive media. Pressure measuring fittings are critical in these systems for monitoring the pressure of pipelines and equipment, preventing safety incidents such as leaks and explosions.

Case Study: High-Pressure Pipeline Application in an Oilfield Project

An oilfield project implemented high-pressure gauge fittings within its pipeline system. These fittings, constructed from high-strength alloys and featuring multi-layer seals, are engineered to withstand high-pressure and highly corrosive environments over extended periods. Regular inspections and maintenance have enabled the project team to avert numerous potential leakage incidents, ensuring safe production and environmental compliance.

Additionally, these pressure measuring fittings are equipped with remote monitoring technology, allowing operators to observe real-time pressure changes in the pipeline from a central control room. This capability ensures that any abnormalities are quickly addressed, significantly enhancing production efficiency and safety management in the oilfield. The integration of these advanced fittings not only ensures the structural integrity of the pipeline system but also supports the overall safety and efficiency of the oilfield operations.

5. Building Construction Sector

In the building construction sector, large mechanical equipment such as tower cranes and concrete pump trucks rely on stable hydraulic systems for optimal performance. Pressure measuring fittings are crucial in these hydraulic systems to ensure stability and safety during construction activities5.

Case Study: Tower Crane Application for a Construction Company

A construction company has integrated high-precision pressure measurement fittings into the hydraulic systems of its tower cranes. During construction, tower cranes frequently lift heavy loads, demanding extremely stringent pressure requirements for their hydraulic systems. By employing high-performance pressure measuring fittings, the company has significantly enhanced construction efficiency and safety in large-scale projects.

These advanced pressure measuring fittings feature the latest self-locking design, ensuring that the fittings remain secure under high pressure and vibration. This innovation greatly improves the reliability and operational safety of construction equipment, enabling the tower cranes to function seamlessly in demanding environments. Consequently, the construction company has achieved higher productivity and reduced risks, reinforcing the importance of utilizing top-tier pressure measuring fittings in critical construction machinery.

6. Agricultural Machinery Sector

In the agricultural machinery sector, equipment such as tractors, harvesters, and planters rely heavily on hydraulic systems. Pressure measuring fittings are essential for monitoring and controlling these hydraulic systems, ensuring the machines’ reliability and efficiency in various farming operations.

Case Study: Harvester Application for an Agricultural Machinery Company

An agricultural machinery company has implemented a new type of pressure measuring connector in the hydraulic system of its latest harvester model. These advanced fittings allow operators to monitor the hydraulic system’s status in real time, enabling timely adjustments and maintenance. As a result, the harvester performs reliably in field operations, reducing mechanical failures and enhancing harvesting efficiency.

These pressure measuring fittings feature an anti-fouling design that effectively prevents soil and impurities from entering the system. This design keeps the hydraulic system clean and functioning properly, ultimately improving the efficiency and service life of the agricultural machinery.

By adopting these innovative fittings, the company has ensured that its harvesters deliver optimal performance, contributing to more productive and efficient farming operations.

7. Mining Sector

The mining industry is highly demanding, and hydraulic systems are crucial for the performance of mining equipment. Pressure measuring fittings are essential for monitoring the hydraulic systems in this sector, ensuring stable operation under high loads, high pressures, and harsh environmental conditions.

Case Study: Hydraulic Drilling Rig Application for a Mining Company

A mining company has integrated high-performance pressure measuring couplings into the hydraulic systems of its drilling rigs. These couplings are made with special wear-resistant materials and a multi-layer sealing structure, allowing them to operate reliably for extended periods under high-pressure and high-vibration conditions.

Through regular maintenance and real-time monitoring, the company’s hydraulic drilling rigs perform exceptionally well in deep well drilling and ore extraction. This significantly boosts both efficiency and safety. The use of these advanced pressure measuring couplings not only extends the lifespan of the equipment but also reduces downtime caused by equipment failures, thereby improving overall productivity at the mine. By leveraging these robust fittings, the mining company ensures that its drilling operations are more efficient, reliable, and productive.

The case studies above clearly illustrate the application of pressure measuring fittings across various industrial fields, highlighting their critical role in ensuring the stable operation and safety of hydraulic systems. These fittings help enterprises improve productivity, reduce maintenance costs, and enhance safety.

As technology continues to advance, the performance and functionality of pressure measuring fittings are also improving. This progress will lead to their application and promotion in even more fields in the future, making significant contributions to industrial development and technological progress.

By integrating these advanced fittings, industries can look forward to more efficient, reliable, and safe hydraulic systems, driving further innovation and growth.

Pressure Measuring Fittings in Hydraulic Systems: Types, Applications, and Best Practices

Junho 25, 2024Junho 25, 2024 por 爱金流体

we offer test hose&couplings just as minimess

Pressure Measuring Fittings in Hydraulic Systems: Types, Applications, and Best Practices

Hydraulic systems are essential in modern industry, playing a crucial role in fields such as construction machinery, industrial equipment, aerospace, and automotive manufacturing.

At the heart of these systems lies the pressure measuring fitting, which is critical for measuring and monitoring system pressure to ensure stability and safety.

In this comprehensive guide, we will explore the various types of pressure measuring fittings, their application scenarios, selection criteria, installation and maintenance procedures, and real-world case studies demonstrating their importance in hydraulic systems.

Pressure measuring fittings come in various designs tailored for specific applications, each with unique features:

1. Quick couplings

·Characteristics: Designed for rapid connection and disconnection.

·Applications: Used in hydraulic systems requiring frequent assembly and disassembly, enhancing efficiency through simple insertion and removal.

2. Threaded joints

·Characteristics: Secured by threaded connections, suitable for high-pressure environments.

·Applications: Common in systems needing robust connections that can withstand high pressure and vibration.

3. Push-in fittings

·Characteristics: Connect via a simple push-in operation.

·Applications: Ideal for low and medium pressure systems, though caution is needed in high-pressure environments.

4. Flanged joints

·Characteristics: Provide high-strength connections.

·Applications: Used in heavy machinery and high-pressure pipelines due to their strong connections and excellent seismic.

5. Welded joints

·Characteristics: Connected by welding, suitable for high-pressure and high-temperature conditions.

·Applications: Preferred in environments demanding high connection strength, despite more complex installation and maintenance.

When selecting a pressure measurement fitting, a number of factors need to be thoroughly evaluated to ensure optimum performance and long-lasting reliability in a particular application. The main factors to consider include the following:

1. Pressure range

According to the working pressure of the hydraulic system, select the coupling that can withstand the corresponding pressure. Over-pressurization can lead to damage to the couplings and even safety accidents.

When choosing, you need to carefully check the maximum working pressure of the hydraulic system and the rated pressure of the pressure measurement joints to ensure that the joints can withstand the working pressure of the system.

2. Temperature range

Hydraulic systems may operate in high or low temperature environments, requiring the selection of fittings with good temperature resistance.

Pressure gauge fittings made of different materials have different performance in different temperature ranges, and you need to choose the right fittings according to the operating temperature of the hydraulic system.

3. Media type

According to the medium used in the hydraulic system (such as oil, water, etc.) to select the appropriate joint material to prevent corrosion and media leakage.

Different media have different requirements for pressure measurement joint materials, such as oil-based hydraulic media suitable for the use of metal joints, while water-based hydraulic media may require the use of corrosion-resistant materials.

4. Connectivity

According to the design and installation requirements of the system to choose the appropriate connection, such as quick couplings, threaded fittings or push-in fittings. The selection needs to take into account the connection method and operating habits of the hydraulic system to ensure that the fitting is easy to install and use.

In order to ensure that the gauge fitting will operate consistently and efficiently in the hydraulic system for a long period of time, proper installation methods and a systematic maintenance program are essential. Below are some detailed recommendations:

1. Installation steps

– Ensure that the hydraulic system is fully pressurized before installation.

– Select the appropriate installation tool according to the type of fitting.

– Ensure that fittings are clean and free of foreign matter where they connect to the system.

– Install the fitting correctly according to the product instructions to ensure a good seal.

– Pressure test after installation to ensure that the joints are leak-free.

2. Maintenance methods

– Regularly check the sealing of the joints and replace the seals when leaks are detected.

– Clean fittings regularly to prevent dust and contaminants from entering the system.

– Regularly lubricate frequently used joints to ensure smooth operation.

– When used under high pressure or in harsh environments, periodically check the fittings for wear and replace damaged fittings in a timely manner.

In the hydraulic system, the pressure measuring fitting is not only widely used, but also plays a vital role. Through the following case studies of several practical applications, we can have a clearer understanding of the key role and significant results of the pressure measurement joints in various industries.

#Construction machinery

A major construction machinery company has introduced a new type of pressure measurement joint in its excavator hydraulic system. Made with high-precision sensors and durable materials, the connector provides excellent measurement accuracy and durability.

By using this pressure fitting, the company monitors the hydraulic system pressure in real time to ensure that the equipment operates within the optimal pressure range, improving efficiency and safety.

In addition, the corrosion and pressure resistance of the couplings significantly reduces maintenance costs, extends service life, and improves overall productivity.

#Oil and gas

In the oil and gas industry, a large oilfield project has adopted a high-pressure and corrosion-resistant pressure measuring fitting to monitor the pressure of high-pressure pipelines. The application of this pressure fitting effectively prevents safety incidents such as pipeline leaks and explosions, and improves the safety and productivity of the project.

Installed at key pipeline nodes, these couplings transmit real-time pressure data to the monitoring center, helping operators adjust system parameters in a timely manner to prevent potential hazards.

#Industrial equipment

An industrial equipment manufacturing company has installed a variety of pressure measurement fittings in its hydraulic presses to monitor the pressure of the equipment’s hydraulic system.

Through accurate pressure monitoring and data analysis, the company identified and resolved potential problems in the hydraulic system and made timely adjustments, significantly improving the equipment’s operational stability and service life.

The real-time data provided by the pressure measurement couplings supports predictive maintenance, reduces equipment failure rates and downtime, and improves overall productivity.

Pressure gauge fittings play a vital role in hydraulic systems, and their proper selection, installation and maintenance are the keys to ensuring the safe and stable operation of hydraulic systems. By understanding the different types of pressure measuring fittings and their application scenarios, and mastering the selection and maintenance methods, the operating efficiency and safety of the hydraulic system can be effectively enhanced.

We hope this article can help you better understand the basics and practical application scenarios of pressure measuring fittings, as well as grasp the key methods of selection and maintenance. We hope this information will be helpful to hydraulic system engineers and technicians in their work to enhance the performance and reliability of hydraulic systems. If you have any questions or need further guidance, please feel free to contact a professional.

qual a diferença dos acoplamentos de teste hidráulico no mercado?

27 de setembro de 2021Julho 2, 2021 por 爱金流体

Acoplamento de ponto de teste hidráulico IKIN FLUID

3 principais fabricantes na China

fornecedor de acessórios de teste hidráulico

SGS aprovado

qual é a estrutura do ponto de teste de pressão no mercado?

Embora o ponto de teste de pressão pareça pequeno e desnecessário, o sistema de teste hidráulico será muito mais conveniente com ele.

1. função do ponto de teste de pressão

O ponto de teste de pressão é usado principalmente para medir a pressão do sistema de fluido e há uma válvula autovedante em seu interior.

Quando usado sozinho, devido à ação da mola, o vazamento do meio do sistema pode ser interrompido.

A válvula autovedante pode ser aberta após ser conectada à mangueira de medição com dedal ou sensor de pressão, e os parâmetros de pressão do sistema podem ser exibidos pelo medidor de pressão ou testador, que é usado para detecção de pressão do sistema, depuração do sistema e diagnóstico de falha de sistema de fluido de alta ou baixa pressão.

Quando colocados em uma posição especial, os adaptadores de ponto de teste também podem ser usados para amostragem do meio do sistema hidráulico, alívio da pressão do sistema e exaustão do sistema.

2. Classificação dos pontos de teste de pressão no mercado

Como o conector do ponto de teste de pressão é especialmente projetado para medição de pressão e amostragem de fluido de alta / baixa taxa de fluxo, o projeto considerou totalmente sua faixa de pressão.

E de acordo com diferentes âmbitos de uso, pontos de teste de diferentes tipos e potências foram projetados, e esses conectores também desempenham um papel insubstituível no trabalho.

De acordo com a estrutura interna diferente, a estrutura do ponto de teste de pressão pode ser dividida em vedação esférica, vedação de pistão e vedação em cone.

2.1 Estrutura de vedação esférica

O acoplamento de teste de pressão de vedação esférica é composto principalmente de uma esfera de aço e uma mola.

O impulso é gerado pela pré-compressão da mola, de modo que a esfera de aço é pressionada contra a superfície de contato do corpo da válvula para obter a vedação.

Características da estrutura do selo esférico: estrutura simples, selo mecânico, não é fácil de envelhecer e tem boa estabilidade.

Outra característica: a precisão de usinagem da superfície de contato do corpo da válvula deve ser alta, a esfera de aço e o corpo da válvula estão em contato com a linha e o efeito de vedação é médio.

Estrutura interna do ponto de teste de pressão com vedação esférica

2.2 Estrutura de vedação do pistão

O adaptador do ponto de teste de pressão da vedação do pistão é composto principalmente de um pistão, um O-ring e uma mola. O anel de vedação está na ranhura do pistão.

Aderir ao cone de vedação (vedação radial) ou superfície plana (vedação axial) através do impulso de pré-compressão da mola.

2.3 Estrutura de vedação do cone

O acoplamento de teste de pressão do selo cônico é composto por um núcleo de válvula cônica, um selo cônico e uma mola.

A vedação cônica e o núcleo cônico da válvula são firmemente presos à superfície cônica de contato do corpo da válvula sob o impulso de pré-compressão da mola.

Estrutura interna do teste de pressão selado por cone

Características da vedação cônica: o núcleo cônico da válvula e a vedação cônica trabalham juntos, a vedação é por contato superficial, o efeito de vedação é melhor e o gás e o líquido são universais;

A mola está integrada no corpo da válvula e não é fácil de soltar; mas a precisão de processamento do corpo da válvula e do carretel é relativamente alta.

Como um equipamento comumente usado na indústria, os pontos de teste de pressão de fluido são conhecidos por sua ampla variedade prática e conexão e amostragem convenientes. Especialmente quando o fluido é usado sob alta pressão e taxa de fluxo, ele tem muitas vantagens e muitas conveniências.

Então, quais são suas vantagens:

Vantagem 1: A operação pode ser concluída manualmente sob alta pressão

Quando o fluido está sob alta pressão, se a operação for descuidada, a pressão mais alta pode facilmente fazer com que o líquido vaze, causando acidentes irreversíveis no processo e até mesmo fatais.

No entanto, o conector da mangueira de teste de pressão leva isso totalmente em consideração, de modo que o conector pode ser desconectado e fechado simplesmente usando ambas as mãos sob alta pressão.

Vantagem 2: Estrutura pequena

Como os locais de amostragem e teste de pressão geralmente não são fixos, o trabalho precisa ser feito de acordo com as condições e requisitos específicos.

Portanto, o formato compacto traz grande comodidade no transporte e operação da engenharia.

Depois, há a capacidade de se conectar facilmente com o medidor.

Devido ao seu propósito único, a conexão com o instrumento é totalmente considerada no projeto, de modo que a operação é fácil e a conexão é firme.

3. Resumo

Os adaptadores de ponto de teste são um componente muito pequeno no sistema hidráulico, mas desempenham um papel importante na depuração, teste e diagnóstico do sistema hidráulico.

Por meio do medidor de pressão ou sensor, vários testes de pressão podem ser concluídos sem desmontagem e montagem e vazamento zero.

O ajuste razoável das conexões do ponto de teste de pressão no sistema hidráulico traz muita conveniência para depuração, teste e diagnóstico.

Para garantir um bom efeito de aplicação, é realmente muito importante escolher um produto de alta qualidade e confiável.

A avaliação atual do ponto de teste de pressão é muito boa e o design do produto é excelente.

Ao mesmo tempo em que garante um grande fluxo de saída, ele também pode garantir padrões de triagem de qualidade rígidos, para que os produtos possam ter um melhor valor de uso.

A julgar pela situação atual, os acoplamentos de teste de pressão também são aplicados de forma flexível a vários sistemas de fluido.

No entanto, a fiação interna de diferentes sistemas de fluido e o tamanho dos conectores são diferentes, portanto, você precisa fazer o controle de fluxo com antecedência antes de comprar o ponto de teste de pressão correspondente.

Se o tamanho não for igual, também é problemático.

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Ikin Fluid participou da Bauma China 2020

30 de junho de 202129 de junho de 2021 por 爱金流体

Olhe para trás a 2020 Bauma China, Xangai

Em 27 de novembro, o Bauma China Shanghai 2020 de 4 dias terminou com sucesso.

Apesar do impacto da pandemia covid, bem como quatro dias consecutivos de chuvas, o entusiasmo da indústria de máquinas de construção ainda não pode ser interrompido.

As grandes empresas de máquinas para construção mostraram suas habilidades e a criatividade do evento dominou o público.

Os expositores mostraram uma surpresa mais agradável, com muitos pontos brilhantes.

O "Online Bauma Show" de Sany se torna um novo IP 23,5 bilhões de pedidos assinados!

A estreia do novo produto testemunhou a força do “Trinity Steel Corps”.

Novo caminhão bomba da série C10 com regulamentos abrangentes e a lança mais longa
A nova escavadeira grande de cem toneladas SY1250H
46 modelos dos equipamentos mais recentes da Sany, de guindastes de 25 a 800 toneladas
Rolo compactador não tripulado sem cabine
A primeira pavimentadora híbrida plug-in do mundo
As primeiras escavadeiras elétricas produzidas em massa do mundo e outras dezenas dos produtos mais modernos, tudo em pleno ataque, deslumbrando o público!

E a imagem abaixo mostra o acoplamento de teste da IKIN usado no sistema hidráulico de guindaste Sany na Exposição de Bauma.

A seguir está a filmagem ao vivo no estande da Sany. É o nosso IKIN acoplamento de teste hidráulico usado no guindaste Sany.

Ce IKIN FLUIDO são sérios na concepção e fabricação hidráulico teste apontars.

Fabricante de acoplamento de teste hidráulico em T na China

Quais são os problemas comuns de vazamento e as possíveis causas dos testes hidráulicos?

8 de março de 2021

Consulte Mais informação "

Convergência XCMG "Steel Corps" Cheia de "Sabedoria Chinesa"

O Grupo XCMG lançou o sistema de informação de serviço de peças de reposição digital global (XCMG-Global Service System, referido como X-GSS) ”.

Promova a transformação e atualização digital, inteligente e não tripulada.

Mais uma vez, o ponto de teste de verificação de pressão IKIN FLUID é usado no Estande da XCMG.

Zoomlion assinou mais de 9 bilhões de RMB no primeiro dia, o novo produto testemunhou o maior do mundo.

A plataforma aérea automotora de braço reto mais alta do mundo ZT68J da Zoomlion
A Zoomlion exibiu muitos produtos de “tecnologia negra”
Novos produtos de alta tecnologia da Zoomlion, todos demonstram fortes capacidades de P&D e inovação.

A figura a seguir mostra a aplicação dos pontos de teste de pressão IKIN, tirados no estande da Zoomlion:

Além disso, abaixo está o acoplamento de teste de pressão usado em muitas outras exibições de estandes de clientes.

Afetados pela epidemia, o número de clientes para participar do show do que no ano de 2018 diminuiu, mas muitos clientes ainda vêm para a festa.

As exposições profissionais, com um sentido de ciência e tecnologia cuidadosamente elaboradas pela IKIN, têm atraído a atenção de muitos clientes.

Estande da IKIN

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Fabricante da China
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especialize-se em acessórios de teste hidráulico
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o que fabricamos?

ponto de teste hidráulico

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mangueira de teste e acoplamento

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acessórios hidráulicos, personalizados para sistema de pressão

Encaixe de mangueira 90 ° e 45 °

conexões de mangueira microbore, com rosca fêmea ORFS

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teste de conexões de mangueira, conexão cônica de 24 °, com rosca macho

kit de teste de pressão

Contacte-nos, diga-nos as suas necessidades em teste hidráulico！

quais são os tipos de conexões de mangueiras hidráulicas e análise de falhas？

Setembro 6, 202129 de abril de 2021 por 爱金流体

Fabricante de encaixe de mangueira hidráulica com encaixe Banjo na China

3 principais fabricantes na China

fornecedor de mangueira de ponto de teste hidráulico

SGS aprovado

quais são os tipos de montagem de mangueira hidráulica e acessórios？

Com o rápido desenvolvimento do maquinário de construção da China, a confiabilidade dos conjuntos de mangueiras hidráulicas se tornou uma das questões mais preocupantes do setor.

O conjunto da mangueira hidráulica é um elemento básico no sistema de transmissão hidráulica. A qualidade da montagem da mangueira afeta diretamente o desempenho do sistema hidráulico e do motor principal. Parte da falha do conjunto da mangueira vem da estrutura do núcleo da junta.

O núcleo do conector da mangueira é dividido principalmente em duas partes, uma é a estrutura de conexão, principalmente com base nos padrões SAE, padrões ISO e padrões KES; A outra parte é a estrutura da parte de crimpagem (estrutura da cauda), que é combinada com o revestimento externo e as camadas de borracha interna e externa da mangueira para formar uma deformação de crimpagem confiável para atender ao desempenho do conjunto da mangueira.

Se a estrutura da peça de crimpagem do núcleo da junta não for razoável no projeto de diferentes tipos de mangueiras, problemas de qualidade do produto ocorrerão em grande medida.

Portanto, os tipos de núcleos de junta (projetados) selecionados para mangueiras em diferentes ambientes de trabalho também são diferentes e um projeto razoável pode evitar ou reduzir a ocorrência de falhas.

1. Tipos e características de conexões de mangueiras

Em toda a indústria de montagem de mangueiras, existem principalmente dois tipos de conexões confiáveis entre as juntas de mangueiras e mangueiras: juntas de mangueira de retenção total e juntas de mangueira removíveis.

A junta de crimpagem completa é um processo no qual o módulo de crimpagem de oito partes da máquina de crimpagem aperta uniformemente a junta da mangueira até certo ponto após a montagem do núcleo da junta, mangueira e revestimento externo, de modo que a junta da mangueira e a mangueira se tornem um todo .

O conector destacável da mangueira comprime a mangueira através do núcleo do conector com o cone externo e o núcleo do conector, de forma que a mangueira fique próxima ao cone interno da luva do conector, formando uma conexão com maior força de ligação.

1.1 Forma e características de crimpagem da mangueira

O tipo de retenção da mangueira depende principalmente do tipo de mangueira (ou do tamanho da borracha interna e externa) e do ambiente de pressão do conjunto da mangueira.

É principalmente dividido em três categorias: crimpagem de borracha sem descascar, crimpagem de borracha externa descascada e crimpagem com descascamento de borracha interna e externa.

As características de cada tipo são:

(1) Não descasca e não enruga: a borracha interna e externa da mangueira não precisa ser descascada e o produto pode ser engomado após a mangueira ser instalada. A tecnologia de processamento é simples.

Este tipo de crimpagem é frequentemente usado para mangueiras trançadas de fio de aço com camadas externas de borracha relativamente finas, como os padrões GB / T3683, EN853 e SAE.

(2) Decapagem e crimpagem: É necessário retirar a camada de borracha externa da mangueira até um certo comprimento (a camada de borracha externa é mais espessa), que é usada para fazer melhor contato da camada de reforço de fio de aço com a ranhura do dente de a jaqueta.

Quando a camisa encolhe e deforma sob força externa, ela entortará firmemente o fio de aço, evitando assim que a junta se solte quando submetida a impactos de alta pressão.

Este tipo de crimpagem é principalmente aplicável a mangueiras enroladas com fio de aço, como os padrões GB / T10544, EN856 e SAE.

(3) Decapagem e crimpagem de borracha interna e externa: as camadas de borracha interna e externa precisam ser decapadas até um certo comprimento (a espessura da borracha interna e externa), a camada de fio de aço e a camada de borracha interna são extrudadas em uma onda forma, geralmente adequada para GB / T10544, EN856-R13, R15, etc. Especificações (32 ou mais incluindo 32) Mangueira em espiral de fio de aço de ultra-alta pressão.

1.2. Conector de mangueira de retenção

A junta de mangueira tipo retenção é composta principalmente de núcleo de junta, revestimento externo (a porca é uma parte opcional) e outras partes.

1) Materiais, tipos e características do núcleo da junta

Os materiais comumente usados para núcleos de junta são aços 20, 35 e 45. Para núcleos de junta retos, costumam ser usados aços 35 e 45, que apresentam forte resistência à deformação. Considerando a capacidade de fabricação de núcleos de junta de dobra, geralmente são usados 20 ou 35 aços.

Com a popularização da tecnologia de dobra a quente, os aços 35 e 45 também podem ser usados para núcleos de junta de cotovelo.

As características estruturais do núcleo da junta estão intimamente relacionadas com a forma de crimpagem da mangueira e, de acordo com a regularidade da estrutura, os tipos de núcleos da junta são aproximadamente divididos em: estrutura em ziguezague, estrutura retangular, estrutura de travamento interno, etc.

(1) O núcleo da junta da estrutura em dente de serra, comumente conhecido como tipo farpado, é composto principalmente de ranhuras em dente de serra e o ângulo entre a hipotenusa e o eixo geralmente não é superior a 20 °.

A parte superior da serrilhada é em forma de arco ou plana, e o plano e o lado curto da serrilha são cantos arredondados e lisos (0,2 ~ 0,5 mm) para evitar danos à camada de borracha interna da mangueira durante a montagem e a crimpagem.

O núcleo da junta desta estrutura tem forte vedação e resistência à tração, e é usado principalmente para mangueiras de borracha enroladas com fio de aço.

(2) Núcleo de junta de estrutura retangular: composto principalmente por várias ranhuras retangulares, 5 ~ 7 corpos de ranhura formam uma ranhura de vedação e a profundidade da ranhura é geralmente 0,3 ~ 0,6 mm.

A superfície de transição entre o topo da ranhura e a parte inferior da ranhura é geralmente lisa com cantos arredondados, com um raio de 0,1 mm ~ 0,3 mm.

Evite danos à camada de borracha interna da mangueira durante a montagem e a crimpagem. A estrutura geral é simples, com bom desempenho de vedação, mas baixa resistência ao arrancamento. Esta estrutura é frequentemente usada para mangueiras de resina, mangueiras trançadas de fio de aço e outros tipos de mangueiras.

Com a popularização da tecnologia de dobra a quente, os aços 35 e 45 também podem ser usados para núcleos de junta de cotovelo.

Com o rápido desenvolvimento do maquinário de construção da China, a confiabilidade dos conjuntos de mangueiras hidráulicas se tornou uma das questões mais preocupantes do setor.

Se a estrutura da peça de crimpagem do núcleo da junta não for razoável no projeto de diferentes tipos de mangueiras, problemas de qualidade do produto ocorrerão em grande medida.

Com o rápido desenvolvimento do maquinário de construção da China, a confiabilidade dos conjuntos de mangueiras hidráulicas se tornou uma das questões mais preocupantes do setor.

Se a estrutura da peça de crimpagem do núcleo da junta não for razoável no projeto de diferentes tipos de mangueiras, problemas de qualidade do produto ocorrerão em grande medida.

(3) Núcleo da junta da estrutura de travamento interno, também conhecido como estrutura anti-pull-out.

Este tipo de estrutura é especialmente projetada para evitar que a mangueira seja puxada para fora da junta da mangueira, e a estanqueidade é garantida pela estrutura retangular.

Portanto, o núcleo de junta da estrutura de travamento interna é, na verdade, uma combinação da estrutura anti-pull-out e da estrutura retangular.

Este tipo de junta possui as características de alta confiabilidade e longa vida útil. É usado principalmente para mangueira de enrolamento de fio de aço de ultra-alta pressão e grande diâmetro e conjunto de mangueira de enrolamento de fio de aço dinâmico sob condições de trabalho adversas.

2) Material da capa externa, tipo e características

O material da camisa externa é geralmente de aço e a boa deformação plástica do material é usada para fazer o tubo de borracha extrudada do dente da camisa externa e o encaixe de vedação do núcleo da junta.

Existem também muitos tipos de capas externas, principalmente para diferentes núcleos de junta, diferentes ambientes de trabalho, diferentes condições de trabalho específicas e diferentes formas estruturais exigidas.

Normalmente, o lado interno da jaqueta é feito de algumas ranhuras ou serrilhados. Existem ranhuras quadradas, trapézios, ziguezagues, etc., que precisam ser usados em conjunto com diferentes tipos de núcleos de junta.

Os tipos de estrutura comumente usados de capas externas são divididos aproximadamente nos três tipos a seguir:

(1) Revestimento com ranhura dentária em forma de onda. A superfície externa da jaqueta ondulada é principalmente um cilindro liso, e o ângulo entre a hipotenusa do dente interno e o eixo é de 25 ° ~ 45 °.

O lado radial e a hipotenusa são conectados por cantos arredondados de 0,2 ~ 0,5 mm, geralmente compostos por 3 ~ 5 dentes internos. Principalmente adequado para conjuntos de mangueiras de média e baixa pressão sem descasque, como tubos de resina e mangueiras trançadas de fio de aço; Pode ser usado em conjunto com estrutura dente de serra e núcleo de junta de estrutura retangular, com fraca resistência ao arrancamento e tecnologia de processamento simples.

(2) Capa com ranhura dentária trapezoidal. A superfície externa é um cilindro liso e a interna é uma ranhura com um certo número de dentes trapezoidais.

O ângulo entre a hipotenusa e o eixo é de 25 ° ~ 45 °, e cada serrilha é uma ranhura retangular. O topo da serrilha é um plano com uma largura de 1 a 2 mm, e os cantos agudos são transicionados por um canto arredondado de 0,2 mm.

Pode ser usado em conjunto com um núcleo de junta de estrutura retangular para formar uma resistência ao pull-out eficaz, adequada para decapagem de tubos trançados de média e alta pressão e tubos de enrolamento.

(3) Cobertura alveolar composta. A superfície externa é uma ranhura em forma de T correspondente ao deslocamento interno do dente, e a superfície interna é uma ranhura com um certo número de dentes trapezoidais bilaterais.

É adequado para uso com o núcleo de junta da estrutura de travamento interno e é usado para montagem de mangueira de ultra-alta pressão e grande taxa de fluxo.

Com o desenvolvimento gradual de máquinas de construção em grande escala, o sistema hidráulico também está em constante desenvolvimento na direção de alta pressão, e a aplicação desta forma estrutural está se tornando cada vez mais extensa.

2. Seleção da quantidade de crimpagem da junta

De acordo com os diferentes tipos de mangueiras e tipos de junta, a quantidade de crimpagem apropriada também é um fator chave para garantir que a montagem da mangueira esteja livre de problemas.

A quantidade de crimpagem afeta diretamente o desempenho da vedação, a resistência à tração e a vida útil.

Geralmente, ao avaliar a qualidade da deformação de crimpagem, verifique se a lacuna entre a superfície do dente interna da luva externa e a ranhura do dente do núcleo da junta é preenchida pelo tubo de borracha.

Somente quando a deformação é satisfeita, a resistência à tração e o desempenho de vedação podem ser garantidos.

De um modo geral, a quantidade de crimpagem da mangueira de borracha interna, como borracha nitrílica, deve fazer a compressão da camada de borracha interna (40% ~ 45% para mangueira trançada de fio de aço, 50% ~ 55% para mangueira enrolada de fio de aço de quatro e seis camadas); A quantidade de crimpagem do tubo de resina e da mangueira de PTFE garante que a quantidade de compressão da camada de borracha interna seja de 25% a 30%.

No caso de garantir a vedação, quanto menor for a retenção na fonte, melhor. Por meio de cálculo e verificação, um determinado montante de retenção é selecionado.

3. Conclusão

O artigo discute os tipos de núcleos de junta e tampas externas usados na montagem da mangueira de retenção.

Quando a crimpagem da mangueira apresenta problemas de qualidade e os tipos de falhas.

Analisou as razões e como usar uma configuração de crimpagem razoável e juntas de crimpagem, a fim de evitar o problema de baixo desempenho da montagem da mangueira causado pela estrutura de crimpagem irracional da mangueira.

Melhorar e controlar efetivamente a confiabilidade da montagem da mangueira e também fornecer um forte suporte para o rápido desenvolvimento de várias máquinas de engenharia hidráulica.

Ikin Fluid

—— Top 3 fabricantes na China, especializados em ponto de teste hidráulico

ponto de teste hidráulico

conexão do medidor de pressão

mangueira de teste e acoplamento

acessórios hidráulicos personalizados