الصمامات الكروية NAB C95800

الوصف

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
• Petrochemical industry
• Coal chemical industry
• Pharmacy
• Pulp & Paper making industry