Lianlai Hydraulic shares the experience of using Haidafos cartridge valves

In the operation and design of hydraulic systems, cartridge valves, as one of the key hydraulic components, play a crucial role. Hydfors cartridge valves have become an important choice for construction machinery, industrial automation, injection molding machinery, metallurgical equipment and various hydraulic stations due to their high reliability, flexibility and wide adaptability.

Kunshan Lianlai Hydraulic Machinery Co., Ltd. has accumulated rich practical experience in hydraulic system integration and the design and manufacture of hydraulic valve blocks over the years. Through a large number of project applications, it has a deep understanding of the performance and usage methods of Haidafos cartridge valves. This article will combine practical application cases to share the experience and insights of Kunshan Lianlai Hydraulic Machinery Co., Ltd. when using Haidefus cartridge valves, in order to provide references for users in selection, installation, commissioning and maintenance.

I. Main Advantages of Haidafosi Cartridge Valves

Among the numerous engineering practices of Kunshan Lianlai Hydraulic Machinery Co., LTD., Haidefus cartridge valves have demonstrated the following significant advantages:

High reliability

The internal structure of the cartridge valve is precise and the material hardness is high, which can maintain stable operation under complex working conditions of high pressure, large flow and high frequency.

Rich in functions

Haidafos cartridge valves are complete in variety, including check valves, relief valves, pressure reducing valves, sequence valves, logic valves, flow control valves, etc., which can meet the requirements of different systems.

Compact structure

The cartridge design enables the valve to be directly installed within the valve block, effectively reducing the connection of external pipelines, lowering the risk of leakage, and enhancing the overall compactness of the system.

Easy to maintain

During the operation of the system, cartridge valves are easy to replace, have high maintenance efficiency, and significantly reduce equipment downtime.

The system has strong adaptability

It can be flexibly configured in different hydraulic valve blocks and is highly compatible with the hydraulic control system independently designed by Kunshan Lianlai Hydraulic Machinery Co., LTD.

Ii. Typical Application Scenarios of Hydefos Cartridge Valves

According to the application experience of Kunshan Lianlai Hydraulic Machinery Co., LTD., Haidafos cartridge valves perform particularly outstandingly in the following fields:

Construction machinery

It is used for excavators, loaders, cranes, etc., to ensure precise movements and improve work efficiency.

Injection molding machinery

The cartridge valve controls the mold closing, mold locking, ejection and other links, ensuring the stability and reliability of the production process.

Metallurgical equipment

Under high-temperature, high-pressure and high-intensity working conditions, cartridge valves can maintain long-term stable operation.

Industrial automation production line

Through precise flow and pressure control, efficient collaboration of automated equipment is achieved.

Hydraulic station system

In complex hydraulic stations, cartridge valves can simplify the system structure, enhance the integration and safety of the oil circuit.

Iii. Sharing of Experience in Using Hydefos Cartridge Valves

1. Insights from the selection stage

In practical applications, whether the selection is correct directly determines the operational effect of the cartridge valve. The experience summarized by Kunshan Lianlai Hydraulic Machinery Co., Ltd. is:

Clarify functional requirements: Do you need to control flow, pressure or direction? Select the corresponding valve type according to the application.

Calculate system parameters: Accurately grasp the working pressure and flow range to ensure that the valve specifications match the system.

Combining valve block design: The compatibility of the valve block oil circuit with the cartridge valve is extremely crucial. Advance planning can avoid installation conflicts.

2. Insights from the installation stage

Maintain cleanliness: Cartridge valves have high requirements for the cleanliness of hydraulic oil. Before installation, the oil circuit and valve block must be thoroughly cleaned.

Confirm the direction: Especially for check valves and logic valves, incorrect direction will cause the system to fail to operate normally.

Moderate torque: When installing, lock it according to the specified torque to avoid leakage due to excessive looseness or damage to the valve body due to excessive tightness.

3. Insights from the debugging stage

Gradually increase pressure: During system debugging, start from low pressure and gradually increase to the working pressure to ensure smooth valve operation.

Monitor temperature rise: Observe the changes in oil temperature and valve body temperature during operation to avoid affecting the sensitivity of action due to abnormal oil viscosity.

Functional verification: Verify each key action link one by one to ensure that the cartridge valve meets the design expectations.

4. Insights gained during the usage and maintenance phase

Regular inspection: Check the wear of the valve core and the sensitivity of opening and closing to avoid delayed action due to wear.

Keep the oil clean: It is recommended to be equipped with a high-efficiency oil filter to prevent particles from entering the valve core and causing jamming.

Timely replacement: When the valve experiences faults such as leakage or unresponsive operation, it should be replaced promptly to prevent the fault from escalating.

Iv. Common Problems and Solutions

During the customer service process of Kunshan Lianlai Hydraulic Machinery Co., LTD., common problems with Haidafos cartridge valves and their solutions include:

The valve is not responsive

Possible causes: Oil contamination, valve core wear or spring fatigue.

Solution: Replace the filter element, clean the valve body, and replace damaged parts if necessary.

Abnormal pressure relief in the system

Possible causes: Improper adjustment of the relief valve or failure of the seal.

Solution: Readjust the pressure, inspect and replace the seals.

Insufficient traffic

Possible causes: The valve core is stuck or the oil viscosity is too high.

Solution: Check the operation of the valve core and adjust the oil temperature reasonably.

Noise and Vibration

Possible causes: Flow mismatch or unreasonable design of the valve block oil circuit.

Solution: Recheck the compatibility between the valve and the valve block, and optimize the valve block design if necessary.

V. Advantageous Services of Kunshan Lianlai Hydraulic Machinery Co., LTD

As a provider of hydraulic system solutions, Kunshan Lianlai Hydraulic Machinery Co., Ltd. has the following service advantages in the application of Hydefos cartridge valves:

Professional selection guidance

Based on the actual working conditions of the customer, we provide targeted selection suggestions to ensure a high degree of compatibility between the product and the system.

Valve block matching design

High-precision hydraulic valve blocks can be designed and processed according to customer requirements, enabling the functions of cartridge valves to be fully exerted.

Full technical support

From installation, commissioning to usage and maintenance, the company offers comprehensive technical services to help customers solve practical problems.

Perfect quality control

Strictly control the raw materials and process flow to ensure the reliability of each hydraulic system and cartridge valve application.

Rich application experience

The company serves multiple industries including construction machinery, injection molding machinery, metallurgical equipment, machine tools and industrial automation, with rich experience and the ability to quickly match customer demands.

With its outstanding performance and wide applicability, Haidafos cartridge valves have become one of the core components in the hydraulic industry. However, to fully leverage its advantages, strict control must be exercised in every link, including selection, installation, commissioning and maintenance.

Kunshan Lianlai Hydraulic Machinery Co., Ltd. has accumulated rich usage experience through long-term practice and shares these insights with a wide range of users, aiming to help more enterprises achieve efficient, safe and stable operation in the application of hydraulic systems. In the future, Lianlai Hydraulic will continue to create greater value for customers with its professional technical strength and high-quality services.