The transportation of significant-temperature medium places bigger demands on the structure, materials and auxiliary system of the pump. Let us look at the cooling necessities of various temperature adjustments and the business's applicable pump kind:
1. For media which has a temperature decreased than one hundred twenty°C, there is normally no Unique cooling system, as well as medium by itself is used for lubrication and cooling. Such as DFL (W) H chemical pump, DFL (W) PH shielding chemical pump (defense degree of shielded motor should exceed H quality when above ninety°C); and DFCZ prevalent sort and IH chemical pump can use temperature to undertake suspension framework The upper Restrict is 140°C ~ a hundred and sixty°C; IHF lining fluorine pump can be utilized up to two hundred°C; only website CQB normal magnetic pump use temperature would not exceed one hundred°C. It is value mentioning that the medium that is not hard to crystallize or includes particles should be Geared up having a sealing floor flushing line (developed by having an interface).
2. For mediums earlier mentioned 120°C and under three hundred°C, a cooling chamber shall be offered over the pump go over. 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 following cooling its individual medium (can be recognized by uncomplicated heat exchanger).
3. For prime temperature medium higher than 300°C, not merely the pump head aspect must be cooled, but in addition the suspension bearing chamber need to 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 cost is much more than ten occasions that of a normal device seal).