Catalog excerpts
Kontes replacement valves Hi-Vacuum Valves Not just a replacement, but an improvement! Internal Ace-Thred Eliminates the chance of m aterial getting into the valve. Hooded UHDPE Sure-Grip cap keeps thread area clean and provides a tight, reliable seal. Cap also disassembles for easy, thorough cleaning. Internal O-Rings Multiple internal FETFE O‑Rings provide tight seals. PTFE-encapsulated (Tef-Cap) O‑Rings provide an even better chemicalresistant, tight seal. The high vacuum valve/stopcock sizes and configurations listed here are a representation of our full offering. Please refer to our General Catalog or website for complete listings and information. Replacement valve plugs are available separately. 8194 Stopcock Easy Action, Glass Plug All-glass stopcock including plug, handle is Nylon. Supplied with FETFE O‑Rings. Pressures to 10-5 Torr attainable after baking. Kontes Bore Size, mm 0-4 0-8 8195 Stopcock Easy Action, Glass Plug All-glass stopcock including plug, handle is Nylon. Supplied with FETFE O‑Rings. Pressures to 10-5 Torr attainable after baking. Kontes Number 826460-0004 826460-0008 Kontes Bore Size, mm 0-4 0-8 Ace Bore Size, mm Each 0-5 96.96 0-10 123.83
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ACE GLASS • Hi-Vacuum Valves 8189 Stopcock High Vacuum, PTFE Plug, with Tef-Cap/O-Ring High vacuum stopcock with Tef-Cap/O‑Ring seals that eliminate exposure to corrosive materials. For use to at least 3.5 Kg/cm2 internal pressure. With variable openings from 0–3mm to 0–10mm. An ultimate vacuum of 10-7 can be realized with the standard three seals. Smooth acting valve permits fine adjustment of opening. Front ring seal makes a positive closure against a precisionformed heavy glass seat. Hooded handle is permanently attached to PTFE plug and is therefore not bakeable. O‑Rings are NOT...
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