1. Check whether the power supply voltage matches the allowable voltage of the solenoid coil. This can be found on the label on the side of the coil.

2. Ensure that the medium pressure passing through the solenoid valve does not exceed the maximum pressure rating of the valve. Pilot operated solenoid valves and auxiliary lift solenoid valves also have a minimum pressure rating that the valve must meet in order to operate properly. The valve's pressure rating can be found on the ID disk located on top of the armature tube and is usually measured in bar.

3. Ensure that the medium is compatible with the structural materials and sealing materials of the valve.

4. Check whether the medium and ambient temperatures are within the minimum and maximum temperature ratings of the solenoid valve. The effect of connected or nearby equipment on these temperatures should also be considered before installation.

5. The solenoid valve should be installed so that the inlet (usually labeled port 1) is connected to the upstream flow and the outlet (usually labeled port 2) is connected to the downstream. Some solenoid valves are also marked with arrows on the valve body to indicate the direction in which the medium should flow.

6. Ideally, the armature tube should be facing upward when installing the solenoid valve. This should reduce the risk of any sediment in the media falling into the tubes and restricting armature movement.

7. If the medium contains sediment or particles, a filter should be installed upstream of the solenoid valve to prevent contamination of the valve components. Impurities that enter the valve can damage internal components and cause the valve to malfunction.

Maintain the solenoid valve:

1. Maintaining your solenoid valve is critical to ensuring it continues to operate at optimal levels. Valve components should be inspected regularly to check for wear.

2. To check the components of the valve, isolate the valve from voltage and fluid. Remove the top nut, ID plate, coil and armature tube. Check pipes and valve bodies for sediment, debris or corrosion. Check that the armature/spring assembly moves freely within the tube. Check seals and O-rings for contamination or wear.

3. For pilot-operated and auxiliary lift-type solenoid valves, also remove the upper valve body and check the diaphragm for debris, tears or deformation.

4. You should be able to remove a small amount of debris as long as you are careful not to damage the components further.

5. Damaged or worn parts should be replaced.

Solenoid valve failure prevention:

1. Applying incorrect voltage to the coil will cause it to fail and may cause the coil to burn out. Power surges or spikes can also damage coils. A burned coil cannot be repaired and needs to be replaced. Always check that the power supply matches the coil voltage and frequency shown on the coil label. It is also recommended to incorporate surge protection into the system.

2. Contact with water or other liquids can also damage the coil and cause it to malfunction. If equipped with a suitable DIN connector, the coil has a protection rating of 65, but if the valve is located outdoors or in wet conditions, suitable protection should be used. Some solenoid valves are equipped with armature tube O-rings to help prevent water from getting between the coil and armature tube. These should be checked regularly and replaced if damaged or worn.

3. Sediments or other particles entering the valve may cause coil failure. If particles are allowed to enter the armature tube, they may restrict the movement of the armature. The coil will continue to try to move the armature, but due to the restriction, will eventually overheat. To prevent impurities from entering the valve, an upstream filter should be installed in the system. It is also recommended to install the valve with the coil and armature positioned vertically as this reduces the risk of sediment falling into the tube.

4. Burnt out or damaged electromagnetic coils should be replaced

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