4M300

A: Yes. It offers two models: single - solenoid control (spring - return) and double - solenoid control (double - coil memory function) to meet different control requirements.

A: No. The spool is made of self - lubricating materials, and the internal structure requires no maintenance.

A: We support OEM/ODM services. Special voltages (such as 48VDC), explosion - proof ratings (Ex d IIB), or interface materials (stainless steel) can be customized.

A: The interface size of 4M310 is usually G1/4. The interface size of 4M320 - 08 is G1/4, and that of 4M320 - 10 is G3/8. If the system pipeline is thin and the flow requirement is low, 4M310 can be selected. If the system pipeline is thick and a large flow is required, 4M320 - 10 is more suitable. 4M320 - 08 is between the two. You can determine the specific model comprehensively based on actual pneumatic pipeline dimensions, required flow, and system pressure.

A: The selection of the rated voltage depends on the on - site power supply situation. If the equipment uses DC power supply with a voltage of 12V or 24V, the corresponding 12VDC or 24VDC solenoid valve should be selected. If it uses AC power supply with common working voltages of 110VAC or 220VAC, the corresponding solenoid valve should be chosen. At the same time, the electrical compatibility and safety of the equipment need to be considered to ensure that the voltage of the selected solenoid valve matches the entire electrical system, avoiding damage to the solenoid valve or failure to work properly due to voltage mismatch.

A: The installation surface should be flat and clean to ensure a tight fit between the solenoid valve and the installation surface and prevent leakage. During installation, align the oil ports and screw holes accurately according to the product manual, and use appropriate tools to tighten the screws to avoid over - tightening and damaging the threads. When connecting the pneumatic pipelines, ensure that the pipelines are firmly connected and well - sealed. For solenoid valves with manual devices, check whether the operation of the manual device is smooth during installation and commissioning for subsequent maintenance and emergency response.

A: There may be several reasons. First, the air source pressure is insufficient. The 4M300 series solenoid valves have a specific working pressure range. If the air source pressure is lower than the minimum starting pressure, the valve cannot operate normally. The air source system needs to be checked to ensure that the pressure is within the specified range. Second, the inside of the solenoid valve may be blocked by impurities. Although the inner hole is processed by a special process, when the air source is not clean, impurities entering the valve will affect the movement of the spool. In this case, the air source needs to be filtered and the solenoid valve cleaned. Third, there may be electrical connection problems, such as loose wiring, poor contact, or unstable voltage. The electrical circuit needs to be checked to ensure a firm connection and stable voltage within the rated voltage range of the solenoid valve.

A: Although the 4M300 series solenoid valves adopt a lubrication - free design with relatively low maintenance requirements, regular inspection and maintenance are still recommended. Regularly check whether there is leakage at the pneumatic connection parts. If there is leakage, tighten or replace the seals in a timely manner. Check whether the solenoid valve operates normally through manual operation (if there is a manual device) and power - on testing. Clean or replace the filter element of the air source filter every once in a while to ensure the cleanliness of the air source and prevent impurities from entering the solenoid valve and affecting its performance and lifespan.

A: The 4M300 series solenoid valves have a relatively long service life under normal use due to the special process of the inner hole. Under suitable working conditions, such as appropriate pressure and temperature ranges and a clean air source, its service life can reach tens of thousands of cycles or even longer. To extend the service life, ensure that the working environment meets the requirements and avoid using it under excessively high or low temperatures and pressures. Keep the air source clean and maintain the air source filtration device regularly. Follow the operation specifications strictly during installation and use to avoid damage to the valve due to improper operation. At the same time, conduct regular inspections and maintenance of the solenoid valve to discover and solve potential problems in a timely manner. In addition, GXR has a professional technical team that can provide comprehensive technical support and after - sales services. Please feel free to contact us if you encounter any problems.