Solenoid Valves: Practical Solutions for Common Operational Problems
Solenoid valves are ideal for use in industrial equipment because they eliminate the need for an engineer to operate the components manually. In simple terms, the solenoid valve is electrically-operated, promoting optimal control of fluid without manual labour. Unfortunately, the valve can fail unexpectedly, compromising the associated system. When this happens, you should hire an experienced contractor for troubleshooting and valve repairs. However, if the problem is not complex, you might be able to handle the malfunction. Here are simple solutions for some of the common solenoid valve issues.
Complete Valve Failure
If your solenoid valve stops operating, you should check the electrical supply. In most cases, this issue can be attributed to the lack of power. You can use a voltmeter to check the power. It should match the required energy levels for the function of the solenoid. You should also examine the solenoid coil for opened and shorted circuits. If the problem is in these electrical elements, you will need to correct the power supply. In other cases, the valve might fail to work if the fluid pressure does not match with the valve ratings. You can resolve the problem by adjusting the pressure or replacing your valve with a more suitable alternative.
Sluggish Solenoid Valve
You should disassemble your solenoid valve for examination if the component is sluggish in operation. This process is also beneficial if your valve is inoperative and the electrical supply and fluid pressure levels are optimal. After disassembly, you should clean out any extraneous matter. Ensure that the plunger in the assembly can move freely without binding, and you should remove obstructions or clogs from the bleed holes or orifices. You should also check the diaphragm in the system for tears; replace this component is damaged. Additionally, you should check the unit for broken springs and replace as necessary.
External Valve Leakage
If there is external leakage of fluid from the solenoid valve, you should determine the source of the flow. Leaks at the sleeve flanges or in the joints between the cover and body are not uncommon. If this is the case in your assembly, you should make sure that the sleeve and screws are torqued correctly, according to the manufacturer's specifications. If the leakage is not resolved, you will need to replace sealing components such as the diaphragm and the flange O-ring. You should note that the damage of the O-rings can also cause external leakages at the speed control device. Replace these faulty parts to restore the functionality of the valve.
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