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Anhui Lile Intelligent Equipment Technology Co., Ltd
Installation and Maintenance of Sanitary Internal Thread Electric Three way Ball Valve
Date: 2025-12-19Read: 3
Sanitary grade internal thread electric three-way ball valve is a key equipment in hygiene sensitive industries such as food and pharmaceuticals, used for precise control of fluid distribution and flow direction. Proper installation and maintenance not only ensure efficient operation of valves, but also extend their service life. This article will provide a detailed introduction to installation steps, maintenance points, and common precautions to help you achieve optimal performance of your equipment.
1、 Detailed installation steps
1. Preparation before installation
pipe cleaningThoroughly clean the interior of the pipeline, remove impurities such as welding slag and oil stains, and avoid damaging the sealing surface of the valve. Use compressed air or water to flush the pipeline to ensure there is no residue.
Valve inspectionConfirm the integrity of the valve, including the valve body, seals, and electric actuator. Check if the valve stem and ball are flexible and free of jamming.
Environmental AssessmentChoose an installation location that is easy to operate and observe, ensuring there is enough space around for maintenance. Avoid environments with high vibration or humidity to prevent affecting the function of the actuator.
2. Installation operation process
Alignment and fixationAlign the valve with the pipeline to ensure a tight internal thread connection. Use a wrench to evenly tighten the threads to avoid deformation caused by excessive force. For flange connections, it is necessary to make the flange faces parallel and tighten the bolts symmetrically.
Installation of electric actuatorInstall the actuator upright with the driving device facing upwards, ensuring a secure connection with the valve stem. When connecting the power cord, strictly follow the wiring diagram and ensure proper grounding protection.
sealing testAfter introducing the medium, check if there is any leakage at the valve stem and connection. Soap water can be used as an auxiliary test to ensure that the sealing performance meets the standard.
3. Debugging and Verification
Manual operation testFirstly, manually rotate the valve stem to verify whether the valve switch is flexible and free of obstruction.
Electric function testAfter connecting the power supply, operate the actuator to test the valve opening and closing action. Confirm that the sealing surface is isolated from the medium to prevent erosion when the valve is in the fully open or fully closed position.
Performance verificationCheck if the valve flow control is accurate, such as the T-shaped or L-shaped distribution function of the three-way valve, to ensure compliance with system requirements.
2、 Maintenance points and cycles
1. Daily maintenance
Cleaning and maintenanceRegularly wipe the surface of the valve and maintain a hygienic polishing treatment (Ra ≤ 0.4 μ m). When cleaning the interior, avoid using corrosive cleaning agents.
Sealing inspectionCheck the sealing gasket and valve seat quarterly, and replace aging components (such as PTFE material). Lubricate the valve stem and moving parts to prevent jamming.
Electrical maintenanceCheck if the wiring terminals are loose and if the actuator runs smoothly. Test the grounding resistance to ensure safety.
2. Regular in-depth maintenance
annual inspectionEvery year, conduct a comprehensive inspection of the valve body and valve cover to identify cracks or deformations. Test the limit switch and over torque protection function.
Performance calibrationRegularly conduct valve tests, such as sealing tests and flow control verification, to ensure performance meets industry standards.
Component replacementAccording to the frequency of use, replace vulnerable parts such as sealing rings and packing groups every 2-3 years to avoid sudden failures.
3、 Precautions and common questions
1. Installation precautions
Prohibit throttling useValves should not be used as throttling valves to avoid damaging the valve seat and sealing surface.
pipe supportEnsure that the pipeline can withstand the weight of the valve, and install support brackets if necessary to prevent the pipeline from sagging.
safe operationBefore maintenance, turn off the medium and relieve pressure to avoid the risk of high-pressure fluid splashing.
2. Maintain common issues
Leakage handlingIf a leak is found, immediately check the sealing gasket and valve stem connection, and replace the components if necessary.
Actuator malfunctionIf the valve cannot be operated electrically, check the power and wiring issues, or inspect the internal components of the actuator.
Impurities influenceRegularly clean the interior of the valve body to prevent particle accumulation from damaging the sealing surface.
4、 Summary and Suggestions
The installation and maintenance of sanitary grade internal thread electric three-way ball valves must strictly follow the specifications, from pipeline cleaning to actuator debugging, every link is related to equipment reliability. Suggest developing a maintenance cycle list and reminding to inspect key components quarterly or annually. Through preventive maintenance, the failure rate can be significantly reduced, ensuring the hygiene and efficiency of the production process. If you need further information on the maintenance details of specific models, you can consult for customized solutions.