Válvulas de bola NAB C95800
Las válvulas de bola de níquel-aluminio-bronce de JST poseen una excelente resistencia a la corrosión, siendo un sustituto adecuado y mucho más barato que el monel para muchas aplicaciones con agua de mar. Las válvulas de bola de Níquel Aluminio Bronce están compuestas principalmente de níquel y ferromanganeso. Con una excelente resistencia a la corrosión, las válvulas de bola de Níquel Aluminio Bronce actúan como un material importante para hélices marinas, bombas, válvulas y elementos de fijación submarinos, siendo ampliamente utilizadas en la desalinización de agua de mar y en la industria petroquímica.
Descripción
Why Use NAB Aluminum Ball Valves?
- The advantages of NAB ball valves are significant. These types of industrial valve are particularly suitable for seawater service, where the corrosion properties, especially their resistance to chloride pitting, are excellent. The technology for producing castings of consistent quality is well known, and there is little need for the extensive non-destructive testing that is required for 6Mo, duplex, and super duplex steels.
- Mechanically, this hand ball valve is comparable to other popular corrosion-resistant alloys, but in order to take full advantage of these properties, specially defined pressure-temperature ratings must be used. Excellent occlusal and wear properties help to ensure the longevity and good performance of NAB ball valves.
- The limitations of this type of hand operated valve are that it should not be used in a sulphide environment and its flow limits must be considered. Competing cast iron and steel valves require some form of protection to compete and even then the quality and durability of this protection determines longevity. Stainless steel valves are subject to severe crevice corrosion and pitting in seawater, and 6Mo, duplex and super duplex stainless steel valves are limited to a temperature of 20 ℃ and a maximum chlorine content in seawater service. The cost of the more exotic higher alloys becomes a key factor and requires a special justification.
Application of NAB C95800 Bronze Ball Valves
- Ocean engineering
- Industria petroquímica
- Coal chemical industry
- Pharmacy
- Pulp & Paper making industry
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