The transportation of superior-temperature medium places better prerequisites over the composition, materials and auxiliary system of your pump. Let us look at the cooling demands of different temperature modifications and the organization's relevant pump style:
one. For media using a temperature reduced than 120°C, there will likely be no Exclusive cooling technique, as well as the medium itself is useful for lubrication and cooling. For example DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (safety level of shielded motor really should exceed H grade when more than ninety°C); and DFCZ frequent 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 used nearly 200°C; only CQB ordinary magnetic pump use temperature won't exceed 100°C. It is actually value mentioning the medium that is simple to crystallize or incorporates particles must be equipped by using a sealing surface flushing line (intended with an interface).
two. For mediums above one hundred twenty°C and down below stamping pump 300°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 allowed to penetrate to the medium. It ought to be taken following cooling its individual medium (may be recognized by very simple heat exchanger).
3. For prime temperature medium higher than 300°C, not merely the pump head section must be cooled, and also the suspension bearing chamber need to be equipped using a cooling process. The pump structure is generally in the form of a central assist. The mechanical seal is if possible a metallic bellows kind, but the value is substantial ( The cost is more than 10 occasions that of a normal device seal).