The transportation of superior-temperature medium places bigger prerequisites on the composition, materials and auxiliary system of the pump. Let us look at the cooling necessities of various temperature adjustments and the business's applicable pump type:
one. For media by using a temperature decrease than 120°C, there is usually no Distinctive cooling process, along with the medium alone 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 grade when over ninety°C); and DFCZ frequent type and IH chemical pump can use temperature to undertake suspension construction The higher limit is a hundred and forty°C ~ one hundred sixty°C; IHF lining fluorine pump can be used as many as 200°C; only CQB everyday magnetic pump use temperature isn't going to exceed 100°C. It can be well worth mentioning which the medium that is not difficult to crystallize or consists of particles really should be equipped that has a sealing surface area flushing line (built with the interface).
two. For mediums over one hundred twenty°C and below 300°C, a cooling chamber shall be delivered within the pump cover. The sealing chamber shall also be linked to the coolant (with double mechanical seal), in the event the coolant just isn't permitted to penetrate into the medium. It should be taken just after cooling its personal medium (is often realized by straightforward warmth exchanger).
three. For high temperature medium previously mentioned three hundred°C, not merely the pump head part has to be cooled, and also the suspension bearing chamber should be Outfitted that has a cooling procedure. The pump structure is usually in the shape of get more info the central aid. The mechanical seal is preferably a metal bellows sort, but the cost is superior ( The price is greater than 10 moments that of a standard equipment seal).