The transportation of large-temperature medium puts larger prerequisites on the composition, products and auxiliary system of the pump. Let us take a look at the cooling necessities of various temperature adjustments and the company's relevant pump style:
one. For media using a temperature reduced than 120°C, there will likely be 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 utilized up to two hundred°C; only CQB ordinary magnetic pump use temperature would not exceed one hundred°C. It axial flow pump is value mentioning that 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 120°C and under three hundred°C, a cooling chamber shall be offered over the pump go over. The sealing chamber shall even be connected to the coolant (with double mechanical seal), if the coolant is not allowed to penetrate in the medium. It should be taken soon after cooling its have medium (could be recognized by simple heat exchanger).
3. For top temperature medium above 300°C, not simply the pump head part has to be cooled, and also the suspension bearing chamber should be equipped by using a cooling procedure. The pump structure is usually in the form of the central guidance. The mechanical seal is if possible a metal bellows variety, but the cost is superior ( The price is greater than 10 moments that of a traditional equipment seal).