... control valve 1.Material:Stainless steel 2.Driven:Pneumatic,Motor-driven,Manual 3.Madium:Water,Oil modulating control valveThis gate valve is ... Food procession, Chemical plant industry etc. it charges to open and close the gate in material conveying system. The max ... different requirement.- Direct pass gate, no jam, no slag, open and close flexible.- Short structure design, powerful support, save ...