1. The application range is not the same. The using and marketing of power station valves are not wider than normal valves due to complex structure, complicated design and expensive price.
2. The using environment is not the same. The power station valve is used under poor working conditions for reasonable structure and good sealing. At the same time, it has multiple functions for high temperature and high pressure. Normal valves have simple structure and more applied to one-way working conditions.
3. There are huge gap between power station valves and normal valves for some reasons. Such as, a power station valve is hard to widely spread and apply, and its price is high, technology complicated and demands not fixed.
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