The transportation of higher-temperature medium places higher specifications around 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 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 useful for lubrication and cooling. For example DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (safety level of shielded motor should really exceed H grade when over ninety°C); and DFCZ frequent sort and IH chemical pump can use temperature to adopt suspension framework The upper Restrict is 140°C ~ a hundred and sixty°C; IHF lining fluorine pump can be utilized as much as 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 should be Outfitted having a sealing floor flushing line (developed by having an interface).
2. For mediums previously mentioned 120°C and under three hundred°C, a cooling chamber shall be offered over the pump include. The sealing chamber shall even be linked to the coolant (with double mechanical seal), once the coolant will not be allowed to penetrate to the medium. It ought to be taken following cooling its possess medium (can be recognized by uncomplicated heat exchanger).
3. For prime temperature medium higher than 300°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 technique. The pump composition is generally in the form of a central assist. The mechanical seal is ideally a metallic bellows kind, but the more info value is substantial ( The worth is more than 10 occasions that of a standard device seal).