High-ammonia pump
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DGF46-50*7 high-pressure ammonia water pump: A packing seal has been used all along, but it can only hold for a short time before leaking. (Ammonia water contains tar) Is there any way to handle it better?
The filler itself needs to leak. Does your pump packing have a water seal? If not, consider adding a water seal ring and filling it with water
Let’s see if it’s possible to upgrade it to a mechanical seal!
There will inevitably be leaks with packing; it’s better to see if the conditions can be changed to use a mechanical seal
Should a filler be prepared? Can the material be optimized, or should another type of filler be used for sealing?
Add another layer of packing; during testing, allow a slight amount of leakage to occur as this serves a cooling purpose. If there is no leakage, the packing will quickly burn out due to the high temperatures
This should be changed to a mechanical seal; the technical modification is very simple
The specification for packing seals allows 6 drops per hour; if there is no leakage at all, the packing will burn out, and this is a matter related to selection.
Hello, sea friend! The DGF46-50*7 is a multi-stage centrifugal pump; it is recommended that you contact the manufacturer to have a mechanical seal installed instead. Or order another pump with a mechanical seal, and have the manufacturer make modifications to it; this is likely to involve issues related to the pump shaft and the seal gland. The modified one is used as a spare; the original manufacturer should be more cooperative, as you should understand. I hope this can help you. If you have any questions regarding gear pumps, screw pumps, rotor pumps, or Roots pumps, feel free to contact me – let’s learn from each other! ! !