... -15psiFlow Characteristics: Linear, Equal-percentage, Quick-openPneumatic control valves are intended for general utility service in pressure, flow ... for many work situation up to scratch 6 leak standard ,soft sealing structure valve core ... percentage6.31016254063100160250400690900144019602560Nominal Pressure(Mpa)1.6,2.5,4.0,6.4,10Travel (mm)16254060100130Diaphragm effective ...