... ,AC/DC9-24V,AC110V,AC120V,AC220V,AC230VValve body Material: Stainless steel (304, 316), Brass(Hpb58-3/59,Ni plated BarssValve End ... which can postpone the scaling time.16.Small volume, compact structure, small and exquisite outlooks, various assembling methods with manual control ... NBR o-ringsStem: brass or stainless steel Situable for/Applications:1.Air-warm valve.HVAC and fire works.2.IC card meters ...