Standard valves are supplied in three material variants; in heat-resistant carbon steel 1.0619 (WCB), in corrosion-resistant stainless steel 1.4408 (CF8M) and in low temperature steel 1.1138 (LCB). In addition, W.T.A. processes practically all materials that can be casting, malleable and weldable materials. Nickel-based alloys are mainly used as special materials.
The most frequently used materials are Hastelloy, Incoloy, Inconel and Monel; however, Titanium or pure Nickel also form part of the range that can be delivered. Steel and stainless steel valves are very frequently also equipped with bellows made of high-quality materials such as e.g. Hastelloy. Finishing the plug seat area by reinforcement with special materials is possible in exactly the same manner.
High-quality bellows sealed globe valves with a multiple safety advantage are W.T.A.’s main product. Their main features are a mature construction principle and long service life and they are absolutely leak-proof to the atmosphere. The safety advantage is based on structural solutions developed from practical experience that have been developed and proved to be repeatedly successful in serial applications.
Many other types of valves that are also manufactured using the above mentioned aspects complete the W.T.A. product range.
The most frequently used materials are Hastelloy, Incoloy, Inconel and Monel; however, Titanium or pure Nickel also form part of the range that can be delivered. Steel and stainless steel valves are very frequently also equipped with bellows made of high-quality materials such as e.g. Hastelloy. Finishing the plug seat area by reinforcement with special materials is possible in exactly the same manner.
High-quality bellows sealed globe valves with a multiple safety advantage are W.T.A.’s main product. Their main features are a mature construction principle and long service life and they are absolutely leak-proof to the atmosphere. The safety advantage is based on structural solutions developed from practical experience that have been developed and proved to be repeatedly successful in serial applications.
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