Isihlungi sochungechunge lwe-SRFA sakhiwe ngezihlungi ezimbili zamabhodlela, i-2-position 3 -way directioal valve, by-pass valve, indicator and diffuser. Ilula ngesakhiwo futhi kulula ukuyisebenzisa. Ibekwe phezulu kwethangi; kukhona i-by-pass valve nenkomba yokungcola kuyo, yokuvikela ukuphepha kohlelo lwe-hydraulic. Isici salesi sihlungi sivumela ukusebenza okuqhubekayo ngisho nangesikhathi sokufaka into, evinjwe ukungcola. Lapho into yokuhlunga ivinjwe ukungcola okuholela ekutheni ingcindezi ifinyelele ku-0.35MPa inkomba izonikeza amasiginali. Ngalesi sikhathi, jikisa i-inoda ye-valve ohlangothini ukuze wenze enye ifilterwork bese ushintsha into.