The transportation of superior-temperature medium puts greater requirements over the framework, supplies and auxiliary program of the pump. Let us discuss the cooling prerequisites of different temperature changes and the corporation's applicable pump style:
1. For media with a temperature decrease than 120°C, there is frequently no Unique cooling process, as well as the medium alone is utilized for lubrication and cooling. Which include DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (safety volume of shielded motor ought to exceed H quality when over 90°C); and DFCZ popular sort and IH chemical pump can use temperature to undertake suspension structure The higher limit is one hundred forty°C ~ a hundred and sixty°C; IHF lining fluorine pump can be used approximately two hundred°C; only CQB normal magnetic pump use temperature won't exceed a hundred°C. It really is worthy of mentioning that the medium that is not difficult to crystallize or incorporates particles ought to be Outfitted get more info that has a sealing surface flushing line (created by having an interface).
two. For mediums above one hundred twenty°C and underneath three hundred°C, a cooling chamber shall be provided within the pump deal with. The sealing chamber shall even be linked to the coolant (with double mechanical seal), when the coolant just isn't permitted to penetrate into your medium. It ought to be taken following cooling its very own medium (might be understood by very simple heat exchanger).
3. For high temperature medium over 300°C, not merely the pump head portion ought to be cooled, but will also the suspension bearing chamber should be equipped having a cooling program. The pump framework is mostly in the form of a central help. The mechanical seal is ideally a steel bellows sort, but the cost is substantial ( The cost is a lot more than ten moments that of a standard device seal).