I-FYS uhlobo lokugqwala olumelana namaphampu angaphansi kwamanzi ame mpo amaphampu amaphakathi esiteji esisodwa asetshenziselwa ukuthutha uketshezi olubolayo olungaqukethe izinhlayiya eziqinile futhi akulula ukucwebezela.Ikakhulukazi isetshenziselwa ukuthutha imidiya eyonakalisayo eqinile.
Le futha yakhiwe yabheka phezulu, nomzimba wayo nesigxivizo sayo sicwiliswa oketshezini endaweni encane yaphansi futhi akukho ukuvuza ku-shaft seal, ukuze ifaneleke ukuthutha uketshezi olubolayo phakathi kuka--5℃~105℃.Izoqalwa njengokwenye isiqondiso esikhonjiswe epompo.Ungalokothi uyiqhube ngokuhlehla.Lapho uqala, umzimba wepompo kufanele ucwiliswe oketshezini.