The transportation of substantial-temperature medium puts larger necessities to the framework, elements and auxiliary process with the pump. Let's speak about the cooling demands of different temperature modifications and the organization's applicable pump kind:
one. For media which has a temperature decreased than one hundred twenty°C, there is normally no Particular cooling method, and the medium alone is utilized for lubrication and cooling. Like DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (security standard of shielded motor must exceed H grade when about 90°C); and DFCZ common form and IH chemical pump can use temperature to adopt suspension composition The upper Restrict is one hundred forty°C ~ 160°C; IHF lining fluorine pump can be employed around two hundred°C; only CQB common magnetic pump use temperature doesn't exceed a hundred°C. It really is worth mentioning the medium that is not difficult to crystallize or consists of particles need to be equipped which has a sealing surface area flushing line (built using an 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 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 more info the suspension bearing chamber need to be equipped using a cooling process. The pump composition is generally 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 greater than 10 instances that of a standard equipment seal).