... 1,Airac type 5/2 ,5/3,3/2 way air control valve 4Aseries. 2, Normally compactly designed G1/8" to G1 ... ,Airac type 5/2 ,5/3,3/2 way air control valve 4A/3Aseries. 2, Normally compactly designed G1/8" ... , 5/2 way valve with one head is spring return while for valve with two heads is air controlled.4, 3/ ... 2 way valve is mostly used for ...