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Building a Vacuum Filling System: Valves & Fine Leaks
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[QUOTE="Adi Wijaya, post: 5455672, member: 592165"] I'm building a vacuum filling system for charging liquid inside heat pipe. I am using 1/8 inch stainless steel tubing for system connecting construction and swagelok ball valve 1/8 inch for regulating the pump down flow from heat pipe to vacuum pump. The fluid regulate with micro metering valve. The goal of my vacuum pressure around 0.1 pascal but until now I could not reach that level due to many fine leaks. Unfortunately my ball valve could not stand for the vacuum condition because there is no o ring inside the valve. Also I using 1/8 inch tee swagelok for connecting three stainless steel tubing and this could be source of the leaks. Question What valve should I use for this application which still affordable with my budget How can I minimize the fine leaks so when I turn off the vacuum pump the vacuum pressure still stable for hours so I could have enough time for injecting the fluid? Thanks a lot [/QUOTE]
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Building a Vacuum Filling System: Valves & Fine Leaks
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