Duplex Steel Valves

Duplex steel valves are very strong and resistant to corrosion products manufactured from duplex stainless steel which has both the austenitic and the ferritic microstructures of stainless steel. This combination makes it possible to achieve high mechanical properties, improved corrosion performance and high durability in aggressive environments especially where chloride is present. Duplex steel valves are employed where the operation of the valves is critical and the conditions are severe such as in the oil and gas industry, chemical processing, marine and desalination industries. These valves are specifically designed for safe and effective regulation of fluid in several operations, and they are highly effective and long lasting.

Advantages of Duplex Steel Valves

These flexible Duplex Steel Valves offer numerous benefits for industrial applications.  

•  High Strength: Duplex steel valves are highly tensile and yield strength and hence can be used in high pressure systems.
•  Corrosion Resistance: They offer very good resistance to corrosion such as pitting, crevice corrosion, and chloride induced stress corrosion cracking.
•  Temperature Tolerance: These valves are effective in both low and high temperatures, including cryogenic and elevated temperature applications.
•  Fatigue Resistance: The material used in the manufacturing of the duplex steel valves also shows high fatigue strength which guarantees the valves performance under cyclic or dynamic loads.
•  Longer Service Life: Due to their high strength and resistance to corrosion, the use of duplex steel valves results in longer service life, thus reducing the costs of maintenance and replacement.
•  Cost-Effective: This makes it possible to use thinner sections of the valve while maintaining high strength and corrosion resistance, thus cutting on the cost of the material used.
•  Resistance to Erosion: Another type of valve material is the duplex steel valves and these valves are very much resistant to erosion, and therefore can be used in handling abrasive fluids.
•  Excellent Mechanical Properties: Together with high strength, hardness and non-sensitivity to crack formation they provide reliable performance in critical applications.

Duplex Steel Valves offer several advantages that make them suitable for industrial and commercial applications.

Common Applications of Duplex Steel Valves

Due to its excellent features, Duplex Steel Valves are preferred for various industrial applications.

•  Oil and Gas Industry: Duplex steel valves are used in the upstream, midstream, and downstream industries where they are subjected to high pressure and high temperature fluids and corrosive atmosphere such as in sour gas.
•  Chemical Processing: These valves are used in chemical plants to regulate the flow of aggressive chemicals, acids, and caustics; they are, therefore, designed to withstand corrosion and wear.
•  Marine Industry: The application of the duplex steel valves is commonly used in the seawater system, desalination plant, and marine vessels where the resistance to the corrosion of the saltwater is important.
•  Water Treatment: These valves are applied in water treatment plants particularly in handling of either brackish or saline water and are designed to provide consistent performance in corrosive conditions.
•  Desalination Plants: Desalination systems use duplex steel valves because of the ability of this material to withstand corrosion by saline water in the long run.
•  Pulp and Paper Industry: In the pulp and paper industries, the corrosive liquids and chemicals are handled by the duplex steel valves for a continuous and smooth operation.
•  Power Generation: These valves are applied in nuclear, geothermal and fossil fuel power stations where they regulate the flow of fluids in conditions of high pressure and high temperatures.
• Petrochemical Industry: Duplex steel valves are quite popular in the refinery and petrochemical industries because of the resistance of the materials to corrosive process fluids and high temperatures.
• Food and Beverage Industry: In the processing plants, the duplex steel valves are used for the handling of fluids like acids and cleaning agents, and this makes the system both hygienically acceptable and resistant to corrosion.
• Mining Industry: Duplex steel valves are applied in mining industries especially in handling abrasive slurry and corrosive fluids in the course of mineral processing.
• Firefighting Systems: These valves are commonly used in fire protection systems especially those that are used in areas that are likely to be exposed to some harsh conditions such as the offshore oil rig and chemical industries.

Duplex Steel Valves are applied across various industries due to their valuable features, which make them versatile.