The transportation of high-temperature medium places bigger requirements on the structure, materials and auxiliary system of the pump. Let us look at the cooling necessities of different 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 itself is useful for lubrication and cooling. For instance 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 kind 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 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 need to be equipped that has a sealing surface area flushing line (built with the interface).
two. For mediums over a hundred and twenty°C and below 300°C, a cooling chamber shall be delivered about the pump deal with. 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 (is usually get more info realized by basic warmth exchanger).
3. For high temperature medium earlier mentioned three hundred°C, not just the pump head portion needs to be cooled, but additionally the suspension bearing chamber really should be Geared up having a cooling technique. The pump composition is generally in the form of a central help. The mechanical seal is ideally a metallic bellows type, but the price is large ( The cost is much more than ten times that of a normal machine seal).