The transportation of superior-temperature medium puts bigger prerequisites to the construction, materials and auxiliary procedure on the pump. Let's look at the cooling demands of different temperature improvements and the business's relevant pump variety:
1. For media by using a temperature reduce than a hundred and twenty°C, there is normally no special cooling technique, and also the medium by itself is used for lubrication and cooling. For example DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (protection amount of shielded motor should exceed H grade when around 90°C); and DFCZ prevalent kind and IH chemical pump can use temperature to undertake suspension structure The upper Restrict is 140°C ~ one hundred sixty°C; IHF lining fluorine pump can be employed as much as click here two hundred°C; only CQB everyday magnetic pump use temperature will not exceed a hundred°C. It is value mentioning which the medium that is straightforward to crystallize or has particles should be Outfitted that has a sealing surface flushing line (created by having an interface).
two. For mediums above a hundred and twenty°C and beneath 300°C, a cooling chamber shall be furnished on the pump include. The sealing chamber shall also be linked to the coolant (with double mechanical seal), if the coolant is not really 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 assistance. The mechanical seal is preferably a metal bellows kind, but the value is large ( The value is over 10 instances that of a standard machine seal).