EV310A, Direct-operated 3/2-way compact solenoid valves EV310A covers a wide range of small competitive, direct-operated 3/2-way solenoid valves for use within industrial applications, for example pilot valve applications. 3/2-way Direct-operated DN 1.2 - DN2 G 1/8" to G 1/4" Ambient temperature: +50°C Brass or stainless steel valve body NC (normally closed) and NO (normally open) versions