SIS SMS 2597-1970 Fittings for piping.Gate valves of cast iron with non-rising stem.Sealing srfaces and wedge of Cu-alloy resistant to sea water.Nominal gauge pressure 10,6,4 and 2,5 kgf/cm2
1970SIS SMS 2597-1970 Fittings for piping.Gate valves of cast iron with non-rising stem.Sealing srfaces and wedge of Cu-alloy resistant to sea water.Nominal gauge pressure 10,6,4 and 2,5 kgf/cm2