The transportation of higher-temperature medium puts greater needs about the construction, components and auxiliary program in the pump. Let's discuss the cooling specifications of various temperature variations and the corporation's applicable pump sort:
1. For media which has a temperature lessen than one hundred twenty°C, there is often 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 quality when about 90°C); and DFCZ popular 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 may be used as much as two hundred°C; only CQB regular magnetic pump use temperature does not exceed one hundred°C. It's truly worth mentioning the medium that is easy to crystallize or has particles ought to be Geared up having a sealing area flushing line (developed by having an interface).
2. For mediums earlier mentioned 120°C and under three hundred°C, a cooling chamber shall be offered around the pump deal with. The sealing chamber shall also be linked to the coolant (with double mechanical seal), in the event the coolant is not really allowed to penetrate in the medium. It ought to be taken right after cooling its have medium (may be recognized by very simple heat exchanger).
3. For prime temperature medium above 300°C, not merely the pump head section must be cooled, and also the suspension bearing chamber need to be equipped by using a cooling process. The pump structure is generally in the form of a central guidance. The mechanical seal is if possible a metallic bellows type, but the read more value is substantial ( The cost is much more than ten times that of a normal machine seal).