The transportation of large-temperature medium puts larger demands about the framework, resources and auxiliary technique on the pump. Let's discuss the cooling specifications of different temperature variations and the corporation's relevant pump variety:
1. For media with a temperature lessen than a hundred and twenty°C, there is often no Particular cooling method, and the medium alone is employed for lubrication and cooling. Like DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (protection standard of shielded motor need to exceed H grade when about 90°C); and DFCZ common style and IH chemical pump can use temperature to adopt suspension structure The higher limit 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 using a sealing area flushing line (created having an interface).
2. For mediums earlier mentioned 120°C and underneath three hundred°C, a cooling chamber shall be presented on the pump protect. The sealing chamber shall even be connected to the coolant (with double mechanical seal), once 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 higher than 300°C, not merely the pump head section must be cooled, but in addition the suspension bearing chamber need to be equipped using a mixed flow pump 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 worth is more than 10 occasions that of a traditional machine seal).