Hi,
Just adding 0.02 EUR: when planning to pump the line it may be worthwhile
inspecting and cleaning/re-greasing the O-ring embedded into the vacuum valve.
Attach the valve adapter to a supply line of dry nitrogen gas to break the vacuum
(avoiding moisture). When at ambient pressure, unscrew the valve screw all the
way to inspect (cracks? rubber gotten old?), clean & re-grease the O-ring
and valve seat. Now reassemble and pump.
Best regards
Bert
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Spin-Doc
Magnetic resonance equipment, service, training & more
Dr. rer. nat. Bert Heise
Owner, applications scientist
Kiefernweg 13
58239 Schwerte
Germany
Mail: bert.heise_at_spin-doc.net
Phone: +49-171-5135315
Representing MestreLab, Stelar & Barthel HF
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Received on Thu Jul 11 2024 - 02:06:52 MST