... 10Mpa DN:20-500mm Best price and quality. Pneumatic Diaphragm Steam Control Valve(150Lb, 300Lb, 600lb,900Lb,etc) Features:Top- ... 304 Gasket A3. 0Cr18Ni9 ,304 Diaphragm With nylon fabric nitrile rubber Springs 60Si2Mn Valve Stem 0Cr18Ni9, 2Cr13,304,316Ordering information ... , Downstream Pressure6. Body, Plug Material7. Input Signal8. With Accessories, Model instruction or not, so that we can help you ...