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Asahi/America plastic valves provide a dependable and economical way to handle corrosive chemicals, including sulfuric and hydrofluoric acid, nitric acid, oxidizing chemicals, caustics, solvents, halogens, and various other hostile fluids. They perform at temperatures up to 250ºF, pressures up to 230 psi, and flows up to 18,500 gpm. All valves meet or exceed ANSI Class 6 shut-off.
Understanding the benefits and limitations of both advanced plastics and metals is essential to making an informed choice in valve materials. For services up to 250ºF and pressures up to 230 psi, plastic valves outperform metal with respect to corrosion, abrasion and freeze resistance, and lower installed cost. Over 70% of all industrial valve applications fall within these ranges. In high pressure, high temperature applications, metals are your only choice. For all other process lines, from wet chlorine, plating solutions, and acid wastes to demineralized water, plastic valve and piping materials are your best solution. Knowing the compatibility of the process material with the valve materials of construction, which include body, seat, seals, gaskets, diaphragms, discs, plugs,balls, packings and trims – non-wetted as well as wetted parts – impacts the valve's life and performance and contributes to its overall cost. In this catalog we have made every attempt to provide you with information which will allow you to make the right selection. The advantages of using plastics are constantly being discovered. Over the past few years, there has been a dramatic increase in the application of plastic valves and piping systems in areas where metal valves were thought to be the only solution. Even the most corrosion resistant metals are still susceptible to galvanic and electrolytic corrosion, resulting in scale build-up which reduces flow rates and increases pressure drop. Asahi/America is actively trying to educate end users to upgrade to plastic systems. To learn more about our family of corrosion resistant plastic valves please click on the appropriate link.
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