It’s easy for the pump used to remove toluene and xylene from cars to run out of pressure; considering replacing it with another pump, do you have any good suggestions?
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Our company uses 80YG-60 pipeline pumps to transfer toluene and xylene; this process often leads to vacuum conditions that damage the 103-45 spring-type mechanical seal (which needs to be replaced 3 to 4 times per month). This seal features a soft surface against a hard surface. To address this issue, I am considering switching to a rotor pump, but such pumps do not meet the explosion-proof requirements. We urgently need to replace the pump – do any experts, experienced professionals, or seasoned technicians have any good suggestions?
Pumps with dynamic sealing or without sealing
A mechanical seal can be equipped with a 53 system to ensure the presence of a liquid film on the sealing surface
Without considering solving the issue of vacuum, no type of pump can meet the requirements.
A buffer tank is installed at the pump’s inlet, equipped with a level switch; the pump stops automatically when the liquid level drops! The volume of the tank should be 3-5 times the total volume of the inlet pipeline!
I also considered this issue; at that time I thought about changing the spring seal back to a bellows seal, and I’m not sure if that’s possible
Adding a buffer tank was also considered, but the height difference between the unloading height and the pump height does not permit it
Power-sealed pipeline pumps or self-priming pumps, sealless vertical pumps, right?