All‐plastic Ball Valve. Ball valves are particularly susceptible to corrosion. This problem has been overcome by a new addition to the range of all‐plastic valves, manufactured by Barflo Ltd. The ball valve illustrated on this page provides an efficient means of regulating the flow of corrosive liquids and can be made from Kralastic (styrene/butadiene acrylonitrile) PVC, high‐impact PVC (British Geon) and other suitable plastic materials in a range of sizes.
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