Leak-free valve
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Our equipment requires the use of leak-free valves. I have never used them before, so I am not familiar with their structure. I’ve also heard that there are no manufacturers in China for such valves – only in Japan. Is that true?
Leak-free valves don’t seem possible. Generally, valves that have packing glands can cause leakage of the medium, but diaphragm valves do not experience leaks at the valve stem. It might be better for the client to choose the appropriate type of valve first, and then consider the brand
It seems the poster is referring to the leakage grade of valves? It is a valve that meets American standards, with a leakage rating of grade 0. It seems that there’s no difference in its structure; only the material of the sealing surface varies! ! They are also divided into fire-resistant and non-fire-resistant types. The poster can just check American standard valves! ! This post was last edited by ad1q on 2007-12-3 14:20]
Cameroonian ball valves can achieve zero leakage; fully welded ball valves are American-made products
High-performance soft-sealed ball valves can also be manufactured by domestic manufacturers! Zero leakage can be achieved!
Premier Wen once inscribed: “Jiangnan Valves – leak-free.” ”What?
What does leakage refer to? Is it an external leak or an internal leak?
It should be like internal leakage; valves are not supposed to have external leakage
It is recommended to use either “ORBIT” or Boya valves; both options result in virtually no leakage.
Generally, soft-sealed valves can achieve leak-free operation, while only some metal-sealed valves are capable of zero leakage, such as triple-eccentric butterfly valves and certain types of globe valves.
I’ve also heard that there are magnetic valves that are indeed leak-free; I wonder if anyone has any information on this
I would like to know whether Boya valves are domestic or imported Why can’t I find any information about it?
Ordinary soft-sealed butterfly valves and ball valves can achieve zero leakage; it depends on what type of valve is needed