Menene 4-hanyar Solenoid Valve?

Bawul ɗin solenoid da ke ba da iska ga wannan mai kunnawa dole ne ya kasance yana da tashoshi huɗu: ɗaya don isar da iska (P), ɗaya don shaye-shaye (E), biyu don tashar jiragen ruwa na Silinda (wanda aka fi sani da A da B), ta yadda mai kunna pneumatic ya motsa ta hanyoyi daban-daban guda biyu. Ana buƙatar waɗannan bawuloli don nau'ikan silinda guda biyu{1} saboda a zahiri suna canza alkiblar iska daga shiga ƙasan mashigar silinda zuwa saman sauran tashar ruwa ta Silinda. Wannan yana taimakawa silinda don buɗewa da rufewa da sauri. Irin wannan bawul ɗin yana da amfani sosai lokacin da aka haɗa nau'ikan ruwa daban-daban tare da juna a cikin wani ƙayyadadden rabo.