Plast-O-Matic Valves has introduced Series S, a compact thermoplastic multiport selector valve for high-purity or corrosive environments. These valves are available in standard 2-way, 3-way, 4-way, and 5-way configurations with a variety of flow paths. Selector valves can be "stacked" in multiple combinations for manifold applications; they can also be custom drilled to provide unique flow paths for laboratory sampling, testing, custom mixing, and other multi-port uses. The selector valve is available manual or actuated, and is suitable for liquid applications to 125 PSI. Series S uses a machined PTFE rotor to direct flow to or from the selected port. Body material options include PVC, CPVC, PVDF, PTFE and natural polypropylene. There are no metal parts in the valves.