The transportation of substantial-temperature medium puts larger demands to the framework, resources and auxiliary process with the pump. Let's speak about the cooling needs of different temperature changes and the company's relevant pump form:
1. For media using a temperature reduce than 120°C, there will likely be no Exclusive cooling technique, as well as the medium itself is used for lubrication and cooling. Such as DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (defense amount of shielded motor ought to exceed H quality when above ninety°C); and DFCZ prevalent sort 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 can be employed around two hundred°C; only CQB common magnetic pump use temperature doesn't exceed a hundred°C. It really is worth mentioning the medium that is simple to crystallize or has particles needs 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 to the medium. It ought to be taken pipeline pump following cooling its individual medium (can be recognized by uncomplicated heat exchanger).
3. For prime temperature medium earlier mentioned three hundred°C, not just the pump head section must be cooled, and also the suspension bearing chamber need to be equipped by using a cooling procedure. The pump structure 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 cost is much more than ten occasions that of a normal device seal).