The transportation of significant-temperature medium puts better prerequisites around the structure, materials and auxiliary system of the pump. Let us look at the cooling necessities of various temperature alterations and the business's applicable pump type:
one. For media that has a temperature decrease than 120°C, there is generally no special 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 degree 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 ordinary magnetic pump use temperature won't exceed 100°C. check here It is actually value mentioning which the medium that is a snap to crystallize or consists of particles need to be equipped which has a sealing surface area flushing line (built using an interface).
two. For mediums over a hundred and twenty°C and below three hundred°C, a cooling chamber shall be provided about the pump cover. The sealing chamber shall also be linked to the coolant (with double mechanical seal), when 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, don't just the pump head element ought to be cooled, but also the suspension bearing chamber needs to be Geared up having a cooling technique. The pump composition is normally in the form of a central help. The mechanical seal is ideally a metallic bellows kind, but the value is substantial ( The cost is more than 10 occasions that of a standard device seal).