The transportation of higher-temperature medium places increased needs within the structure, elements and auxiliary technique in the pump. Let us mention the cooling needs of various temperature alterations and the organization's relevant pump sort:
one. For media by using a temperature reduce than a hundred and twenty°C, there will likely be no Specific cooling method, as well as medium itself is employed for lubrication and cooling. Like DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (security degree of shielded motor should really exceed H grade when about 90°C); and DFCZ widespread type and IH chemical pump can use temperature to adopt suspension composition The upper limit is a hundred and forty°C ~ 160°C; IHF lining fluorine pump can be utilized nearly 200°C; only CQB standard magnetic pump use temperature does not exceed one hundred°C. It can be really worth mentioning the medium that is not hard to crystallize or includes particles really should be equipped using a sealing floor flushing line (built with the interface).
2. For mediums earlier mentioned a hundred and twenty°C and beneath 300°C, a cooling chamber shall be furnished on the pump go over. The sealing chamber shall also be linked to the coolant (with double mechanical seal), in the event the coolant is not allowed to penetrate in to the medium. It should be taken immediately after cooling its have medium (may be realized by basic warmth exchanger).
three. For top temperature medium higher than three hundred°C, not only the pump head component has to be cooled, and also the suspension bearing chamber really should be Geared up which has a cooling system. The pump structure is generally in the form of a central support. The mechanical seal is preferably a metal bellows type, but the price is higher ( The price double suction pump is over 10 occasions that of a normal machine seal).