The transportation of superior-temperature medium places better requirements on 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 variety:
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 degree of shielded motor should really exceed H quality when more than ninety°C); and DFCZ widespread 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 having a sealing floor flushing line (developed by having an interface).
2. For mediums earlier mentioned 120°C and underneath 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), once the coolant is not really permitted to penetrate in to the medium. It ought to be taken after cooling its very own medium (is usually realized by basic warmth exchanger).
3. For high temperature medium earlier mentioned three hundred°C, not just the pump head portion really should be cooled, but additionally the suspension bearing chamber really should be Geared up having a cooling technique. The pump composition is normally read more in the form of a central assist. The mechanical seal is if possible a metallic bellows type, but the value is substantial ( The cost is more than 10 occasions that of a standard device seal).