Iyo duplex sefa inoumbwa nesefa silinda, chivharo chivharo, vharafu, sefa bag net, pressure geji uye zvimwe zvinhu, uye michina inogadzirwa nesimbi isina tsvina. Iyo pombi yekubatanidza yehuviri sefa inotora nzira yemubatanidzwa kana yekusungirira, uye mavharuvhu ekupinda nekubuda anovhurwa nekuvharwa nemavharuvhu maviri-matatu ebhora. Iwo maviri ega silinda mafirita akaunganidzwa pane imwe base yemuchina, uye hapana chikonzero chekumira kana uchichenesa sefa kuti ive nechokwadi chekushanda kwayo. Iyo isiri-yega yekugadzira mutsara yekusefa mudziyo. Iyo yekusefa yehuviri sefa, pamusoro pekushandisa Stainless simbi sefa element, inogona zvakare kushandisa muzinga wehuchi degreased fiber donje, inogona kusefa kunze size 1 μ Zvimedu zviri pamusoro.

Iyo yekushanda musimboti weiyo duplex sefa: Iyo yekumisikidzwa inopombwa mune yega yega yakavharwa sefa kamuri yesefa, uye pasi pekuita kwekumanikidza kwekushanda, inoburitswa kuburikidza nesefa yekubuda. Iyo sefa inosara inosiiwa mufuremu kuti igadzire keke resefa, nekudaro inowana kupatsanurwa kwakasimba-mvura. Iyo filtrate inoyerera ichipinda mubhegi resefa kuburikidza neparutivi inlet pombi yesefa casing. Iyo sefa bhegi pachayo inoiswa mune yakasimbiswa mesh basket, uye mvura inopinda neinodiwa yefineness level sefa bag kuti iwane inokwanisa kusefa. Zvimedu zvisina kuchena zvinopindirwa nebhegi resefa.