I want to learn on-site about the use of valves in polysilicon equipment
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I work in the field of ultra-durable ball valves. We are now entering the polysilicon industry, so I would like to go to the polysilicon production sites to learn more, to observe and understand how valves are used in those facilities. Is there anyone who could allow me to visit your company for such purposes? ?
The main problem in the production of polycrystalline gauge valves is that they start to stick and fail to operate properly after being used for a while
Is it caused by a particle in the system?
Reply to 2# wskpl8166: It’s the reset spring of the valve that’s faulty; the valve seat getting stuck is what causes the valve to malfunction
I work in the valve industry; we can communicate via Q1633729017
The lining of the feeding tray valves used in the synthesis process is made of silicon carbide; after being in use for a while, this lining wears out severely, resulting in the valves not being able to close properly and causing leaks. It is recommended that the person in question consider not only the valves themselves but also the properties of the medium being processed. Otherwise, even if the valves are made to be highly wear-resistant, it will be pointless. Our disc valves cost hundreds of thousands of dollars, yet they still last no more than 2 years, and those are even imported ones. . . .
The main issues are blockages, high temperatures, as well as the hardness of silicon powder – all caused by complex operating conditions! ! Also, nowadays polysilicon companies generally do not allow visitors to tour their facilities.
Anyway, the main components that get damaged in polysilicon plants are the valves used in the synthesis process; disc valves mainly fail to close properly or leak when closed, while cut-off valves suffer from internal leakage
Bellows are prone to leakage points~~~~~~~~