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Question:

What does the stem material VTA mean?

What does the stem material VTA mean?

Answer:

Valve stem: the valve stem is not only moving parts, force components, but also seals when the valve is opened and closed.
Jul 19, 2017
At the same time, it is subjected to the impact and corrosion of the medium, and it also causes friction with the packing. Therefore, in selecting the stem material, it must be guaranteed that it has sufficient strength at the prescribed temperature, good impact toughness, scratch resistance, corrosion resistance.
Jul 19, 2017
The valve stem is a vulnerable part, and the mechanical performance and heat treatment performance of the material should be paid attention to when selecting.
Jul 19, 2017

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