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Anticorrosion valve needle method
Needle-type valve body corrosion, mainly the correct choice of needle valve material. Although the needle valve anti-corrosion information is very rich, but can be properly selected, or not easy thing, because the problem of corrosion is very complicated. Needle valve body material selection difficult, but also can not only consider the needle valve corrosion problems, must also consider the needle valve pressure temperature capability, economic reasonable, the needle valve is easy to buy and other factors. Followed by the needle valve lining measures, such as lead-lined, lined with aluminum, lined with plastic, lined with natural rubber and various synthetic rubber. Again, the needle valve pressure, the temperature is not high, with non-metallic needle valve body material, often very effective control of corrosion. In addition, the outer surface of the needle valve body is also subject to atmospheric corrosion, the general steel materials are to paint to protect.