Keystone CompoSeal Resilient Seated Butterfly Valve

Light weight construction results in lower cost and simplified installation.;No extra pipe support needed when installed in plastic or GRP piping.;Disc in high engineered composite material provides excellent corrosion resistance.;All fasteners in stainless steel 316 as standard.;Bubble tight shut-off in both directions, in accordance with EN 12266-1 leakrate A.;Pressure range up to PN 16 at elevated temperature.;Valve can be used in high line velocity applications up to 12 m/sec.;Spindle and primary valve seals are not influenced by the flange bolting force or pipe flange type.;High Kv (Cv) value.;No need for flange gaskets.;Primary stem sealing exceeds the pressure rating of the valve and prevents leakage through the shaft area to atmosphere.