Screenshot of a news article describing a domestic check valve
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Who would have thought that the one-way valve mentioned in the news broadcast is of German origin and has a lifespan of only 1–3 hours, while domestic versions can last for a year, at a price that is only 1/9 of that of the German ones? The most crucial question is: are there any devices willing to use something with a lifespan of only 1–3 hours?
There are many issues such as product selection and individual cases; after all, it’s a central news outlet, so an objective analysis should be conducted before broadcasting
I’m also very skeptical about this. The problem is it’s so expensive, and its lifespan is only 3 hours – tell me, who can afford it? Was it 1 to 3 years turned into hours for them? Years would be more reliable
Do I need to replace it every 1 to 3 hours? Kids’ diapers don’t need to be changed that often either
This post was last edited by Dulong Lu on 2016-12-9 at 17:45. I have encountered this situation, which prevents the device from operating for extended periods of time. The main reason is the lack of attention abroad, with conventional valves being sold at high prices. In China, development is carried out through cooperation, with specialized research and development tailored to specific operating conditions. It’s still prejudice and profit causing trouble.