The transportation of significant-temperature medium places better prerequisites on the structure, materials and auxiliary method from the pump. Let us talk about the cooling prerequisites of different temperature alterations and the business's applicable pump kind:
one. For media that has a temperature decreased than one hundred twenty°C, there is normally no Unique cooling system, as well as medium by itself is utilized for lubrication and cooling. Such as DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (security standard of shielded motor must exceed H grade when about 90°C); and DFCZ common form and IH chemical pump can use temperature to adopt suspension composition The upper limit is one hundred forty°C ~ 160°C; IHF lining fluorine pump can be employed around two hundred°C; only CQB common magnetic pump use temperature doesn't exceed a hundred°C. It truly is worth mentioning the medium that is straightforward to crystallize or incorporates particles must be equipped that has a sealing surface flushing line (intended with the interface).
two. For mediums above one hundred twenty°C and below 300°C, a cooling chamber shall be delivered over the pump protect. 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 understood by simple heat exchanger).
three. For top temperature medium above 300°C, not click here simply the pump head part has to be cooled, and also the suspension bearing chamber should be Outfitted by using a cooling procedure. The pump structure is usually in the form of the central aid. The mechanical seal is if possible a metal bellows sort, but the cost is significant ( The worth is greater than 10 instances that of a standard device seal).