The transportation of higher-temperature medium puts greater demands about the construction, resources and auxiliary technique in the pump. Let's discuss the cooling specifications of various temperature variations and the corporation's relevant pump variety:
1. For media with a temperature lower than a hundred and twenty°C, there is frequently no Specific cooling program, and also the medium alone is employed for lubrication and cooling. Including DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (protection volume of shielded motor need to exceed H grade when around 90°C); and DFCZ typical style and IH chemical pump can use temperature to adopt suspension structure The higher limit is a hundred and forty°C ~ 160°C; IHF lining fluorine pump can be employed approximately 200°C; only CQB standard magnetic pump use temperature will not exceed a hundred°C. It truly is well worth mentioning which 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 beneath 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 is just not permitted to penetrate in to the medium. It ought to be taken after cooling its very own medium (is usually realized by uncomplicated warmth exchanger).
3. For prime temperature medium earlier mentioned 300°C, not just the pump more info head aspect needs to be cooled, but in addition the suspension bearing chamber really should 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 worth is more than 10 instances that of a standard device seal).