The transportation of superior-temperature medium places greater needs about the construction, components and auxiliary technique on the pump. Let's speak about the cooling specifications of different temperature changes and the company's relevant pump form:
1. For media using a temperature reduce than a hundred and twenty°C, there will likely be no Exclusive cooling technique, as well as the medium itself is useful for lubrication and cooling. For example DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (safety level of shielded motor should really exceed H quality when more than ninety°C); and DFCZ widespread type and IH chemical pump can use temperature to undertake suspension construction The higher limit is 140°C ~ one hundred sixty°C; IHF lining fluorine pump can be used nearly 200°C; only CQB ordinary magnetic pump use temperature won't axial flow pump exceed 100°C. It is actually value mentioning that the medium that is a snap to crystallize or includes particles need to be Outfitted with a sealing surface area flushing line (designed using an interface).
two. For mediums previously mentioned a hundred and twenty°C and beneath three hundred°C, a cooling chamber shall be supplied about the pump include. The sealing chamber shall also be linked to the coolant (with double mechanical seal), when the coolant is just not permitted to penetrate in to the medium. It ought to be taken after cooling its possess medium (can be realized by uncomplicated warmth exchanger).
3. For prime temperature medium higher than 300°C, not just the pump head aspect needs to be cooled, but in addition the suspension bearing chamber need to be equipped using a cooling process. The pump composition is generally in the form of a central aid. The mechanical seal is ideally a steel bellows style, but the price is higher ( The value is in excess of ten times that of a normal machine seal).