... /2 way, NC,with flow adjust screw, use with steam, water and air 2.FACTORY SALE Steam magnetic valves for steam ... ,water,air ,gas 1/4", 2/2 way, NC, direct action, ... by our own factory. used in sewing/ironing/pressing machine,steam boiler, textile machine etc.ZCQ-01B Port Size:Female G 1/4 ...