Flow Control Valve, Ball Valve, Check Valve,Slide Valve 1:Working Pressure:15Bar 2:Materials:Nickel-Plated ... line of valves contain the brass valve flow control with swiveling, flow control valves, ball valve, check valve, slide valve, etc.Valves In the field ... with NBR seals and a technopolymer control knob. They are suitable for regulating compressed air, water or mineral oil. Flow Control Valves