Air Water Oil Solenoid Valve 2-way normally closed/open Pipe size:3/8" ~ 2" ... certificates Gas/ Water /Oil Electric Solenoid Valve1. 2/2-way normally closed, 3/8", 3/4", 1", 1ΒΌ",1 ... /220V, 50/60Hz, DC 12/24V7.Material of solenoid valve:Seals:NBR , VITON or EPDM, body: Stainless steel ... SS304;8.Brass series solenoid valve with CE TUV, ISO9001 approvement. 2 Way 2 Position Stainless Steel Gas|Water| ...