The Corrosion Chronicle: Valves

Need to Improve the Reliability of Your Valves?

Valves of many different types and sizes are used as critical components to manage fluid flow in process equipment. Corrosion due to aggressive chemical environments can cause problems such as reduced reliability, increased safety risks, leaks, and contamination of the process fluid. In many cases corrosion of metal valves is caused by the removal of the passive surface oxide layer after exposure to acidic and/or chlorinated compounds and can commonly appear as pitting. Different metal alloys will reform the passive surface oxide layer at varying rates which impacts the overall corrosion resistance of the valve. Use of exotic alloys in the manufacture of valves to reduce corrosion is limited due to the cost and lead-time required to obtain these specialized parts. Tantalum metal has proven to rapidly reform a surface oxide layer in even the most aggressive hot acid environments. By applying a tantalum surface layer using our unique Tantaline® treatment, the super corrosion resistance of tantalum is now a more affordable option for valves.

Tantaline® Treated OEM Parts: Valves

At Tantaline CVD we link up with leading OEMs and fabricators to supply us with standard stainless steel base parts. These base applications are then converted into the most corrosion resistant products commercially available.

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How Is Tantaline® Treatment Superior to Tantalum Cladding?

Tantalum surface treatment have been developed in an effort to benefit from the extraordinary acid resistant properties of tantalum metal while reducing the costs compared to solid tantalum. Tantalum's acid resistant properties and inertness are extraordinary. The industry has made attempts at developing a number of acid resistant tantalum coating technologies to offer the right balance of performance and price. To date, Tantaline® treatment has proven to be the ultimate solution.

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