The transportation of superior-temperature medium puts greater prerequisites to the construction, supplies and auxiliary procedure on the pump. Let's take a look at the cooling demands of different temperature improvements and the business's relevant pump variety:
one. For media by using a temperature lower than one hundred twenty°C, there is generally no Distinctive cooling program, as well as medium by itself is useful for lubrication and cooling. Including DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (security degree of shielded motor really should exceed H grade when in excess of ninety°C); and DFCZ frequent style and IH chemical pump can use temperature to adopt suspension framework The higher limit is one hundred forty°C ~ a hundred and sixty°C; IHF lining fluorine pump can be utilized as many as 200°C; only CQB regular magnetic pump use temperature would not exceed 100°C. It truly is worth mentioning the medium that is easy to crystallize or includes particles need to be equipped by using a sealing area flushing line (designed with the interface).
two. For mediums higher than 120°C and read more under three hundred°C, a cooling chamber shall be provided within the pump protect. The sealing chamber shall even be linked to the coolant (with double mechanical seal), when the coolant isn't allowed to penetrate to the medium. It ought to be taken just after cooling its own medium (could be recognized by uncomplicated warmth exchanger).
three. For top temperature medium above 300°C, not just the pump head element should be cooled, and also the suspension bearing chamber need to be Geared up with a cooling system. The pump structure is generally in the form of a central assistance. The mechanical seal is preferably a metal bellows kind, but the price is higher ( The value is over 10 occasions that of a normal machine seal).