The transportation of superior-temperature medium places bigger requirements on the composition, materials and auxiliary procedure of your pump. Let us look at the cooling demands of different temperature adjustments and the organization's applicable pump style:
one. For media by using a temperature decreased than one hundred twenty°C, there is frequently no Specific cooling program, and also the medium alone is employed for lubrication and cooling. For example DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (protection volume of shielded motor really should exceed H grade when over ninety°C); and DFCZ frequent type and IH chemical pump can use temperature to undertake suspension structure The higher Restrict is one hundred forty°C ~ 160°C; IHF lining fluorine pump can be employed approximately 200°C; only CQB standard magnetic pump use temperature will not exceed a hundred°C. It truly is really worth mentioning which the medium that is straightforward to crystallize or contains particles really should be equipped that has a sealing surface flushing line (intended with the interface).
two. For mediums over a hundred and twenty°C and below three hundred°C, a cooling chamber shall be provided about the pump cover. The sealing chamber shall also be linked to the coolant (with double mechanical seal), when the coolant is just not 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 prime click here temperature medium earlier mentioned three hundred°C, not just the pump head aspect needs to be cooled, but in addition the suspension bearing chamber need to be equipped using a cooling process. The pump composition is generally in the form of a central guidance. The mechanical seal is if possible a metal bellows kind, but the value is significant ( The value is in excess of ten times that of a normal machine seal).