The transportation of significant-temperature medium places bigger requirements on the structure, materials and auxiliary system of the pump. Let us speak about the cooling demands of different temperature modifications 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 used for lubrication and cooling. For instance DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (defense degree of shielded motor should exceed H quality when above ninety°C); and DFCZ prevalent sort and IH chemical pump can use temperature to undertake suspension framework The upper Restrict is 140°C ~ a hundred and sixty°C; IHF lining fluorine pump can be utilized up to two hundred°C; only CQB normal magnetic pump use temperature would not exceed one hundred°C. It is worthy of mentioning that the medium that is not hard to crystallize or is made up of particles ought to be Outfitted here having a sealing floor flushing line (developed by having an interface).
2. For mediums earlier mentioned 120°C and under three hundred°C, a cooling chamber shall be presented on the pump protect. The sealing chamber shall even be connected to the coolant (with double mechanical seal), once the coolant is not really allowed to penetrate in the medium. It ought to be taken right after cooling its have medium (may be recognized by simple heat exchanger).
3. For top temperature medium above 300°C, not simply the pump head aspect must 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 sort, but the cost is superior ( The worth is greater than 10 moments that of a standard device seal).