Nil-Cor - Model 300/310 and 310HD -Double-Offset Disc Butterfly Valves

The Nil-Cor Series 300HD / 310HD double-offset disc design allows the disc to move off the seat with a "camming" action, reducing break-away torque and seat wear. The 360° uninterrupted disc seal eliminates the leak path at the shaft hubs found onPTFEand rubber-lined valves. A strong Stainless Steel shaft encapsulated with graphite or fiberglass-reinforced vinyl ester resin eliminates corrosion and assures long trouble-free operation.