... Steam,Oil goods Nominal Pressure:1.0mpa 1.6mpa silencer check valve,check valveFeature1,It is developed successor independtly.novelty structure,influent liquid ... linear seal,well non-return outcome,It can efficiently dimish and turn off noise3,Small volume.light weight,easy to ... install and maintainMain Parts MaterailBody:cast iron,ductile iron,cast steel, ...