The transportation of significant-temperature medium places bigger requirements around the structure, materials and auxiliary system of the pump. Let us look at the cooling necessities of different temperature adjustments and the organization's applicable pump style:
one. For media by using a temperature reduced 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 grade when more than ninety°C); and DFCZ frequent 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. It is actually well worth mentioning which the medium that is not hard to crystallize or includes particles should be Outfitted with a sealing floor flushing line (developed by having an interface).
2. For mediums previously mentioned a hundred and twenty°C and under three hundred°C, a cooling chamber shall be offered to the pump go over. The sealing chamber shall even be linked to the coolant (with double mechanical seal), once the coolant will not be allowed to penetrate to the medium. It ought to be taken following cooling its individual medium (can be recognized by uncomplicated heat 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 really should be equipped using a cooling technique. The pump composition is generally in the form of a central assist. The mechanical seal is read more if possible a metallic bellows type, but the price is large ( The cost is much more than 10 occasions that of a normal device seal).