Overflowing means oil in water this can be because of several reasons they are as follows;
1. Temperature of the oil. Temp should not be high else water will evaporate and due to this interface will break and purifier start overflowing.
2. size of the gravity disc If the size of the gravity disc is more the oil will leak to the waterside.
3. high throughout is the fuel taken in the purifier is capacity is more in the oil may leak to the water side.
4. Operating water level in Tank low or operating water filter chock .The operating water is used for closing and opening of the the bowl by discharge slide and operating slide. If the operating water is not there , than the bowl will not be closed by closing water than sludge port will be opened slighlty thus oil can leak to water side due to disturbance in the oil -water interface.
5. Sealing water is not present in purifier. As Marine fuel oil normally contains a small amount of water it is necessary to prime the bowl each time that it is run,otherwise the oil will pass over the water outlet side as waste
6. Seal ring is damaged.The bowl is kept closed by the discharge slide, which seals against a seal ring in the bowl hood.if this gets damaged no sealing will be there and sludge port will be opened slighlty thus oil can leak to water side due to disturbance in the oil water interface.
7. By mistake if bowl opening water is feeded.
8. The o ring is not sealing properly that was near to the plug and nozzle.The oring is present in discharge and operating slide. The o ring doest allow the operating water to leak from the operating and discharge slide . If the water leaks than the slide will not open and close properly thus leakage.
Action to be taken ;
1. Check inlet pressure of the fuel oil it should not be high.
2. Adjust back pressure valve. If you give too much fuel throughout then Water particle will not come in contact with the plate but if increased furthur throughout oil may leak to water side for that reason there was the back pressure valve with which we can maintain the throughout.
3. Temperature adjust according to nomogram if new bunker has different density need to change using nomogram diagram.
4. If still overflowing bowl needs to be opened up clean bowl, change all o ring and Seal ring, drain nozzle, check vertical shaft height and then box up.
1. Temperature of the oil. Temp should not be high else water will evaporate and due to this interface will break and purifier start overflowing.
2. size of the gravity disc If the size of the gravity disc is more the oil will leak to the waterside.
3. high throughout is the fuel taken in the purifier is capacity is more in the oil may leak to the water side.
4. Operating water level in Tank low or operating water filter chock .The operating water is used for closing and opening of the the bowl by discharge slide and operating slide. If the operating water is not there , than the bowl will not be closed by closing water than sludge port will be opened slighlty thus oil can leak to water side due to disturbance in the oil -water interface.
5. Sealing water is not present in purifier. As Marine fuel oil normally contains a small amount of water it is necessary to prime the bowl each time that it is run,otherwise the oil will pass over the water outlet side as waste
6. Seal ring is damaged.The bowl is kept closed by the discharge slide, which seals against a seal ring in the bowl hood.if this gets damaged no sealing will be there and sludge port will be opened slighlty thus oil can leak to water side due to disturbance in the oil water interface.
7. By mistake if bowl opening water is feeded.
8. The o ring is not sealing properly that was near to the plug and nozzle.The oring is present in discharge and operating slide. The o ring doest allow the operating water to leak from the operating and discharge slide . If the water leaks than the slide will not open and close properly thus leakage.
Action to be taken ;
1. Check inlet pressure of the fuel oil it should not be high.
2. Adjust back pressure valve. If you give too much fuel throughout then Water particle will not come in contact with the plate but if increased furthur throughout oil may leak to water side for that reason there was the back pressure valve with which we can maintain the throughout.
3. Temperature adjust according to nomogram if new bunker has different density need to change using nomogram diagram.
4. If still overflowing bowl needs to be opened up clean bowl, change all o ring and Seal ring, drain nozzle, check vertical shaft height and then box up.
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