|  |  | VALVES Granville-Phillips Variable Leak Valves feature: - Gas flow continuously variable from above 300 Torr liters/sec to below 10E-10 Torr liter/sec
- Seals mass spectrometer leak tight
- Bakeable to 450° C
- Valve constructed entirely of low vapor pressure metals, insuring minimum contamination
- Useful with inlet pressure above 200 psi and below 10-10 Torr
- Repeatable control
One Inch Gold Seal, UHV Valve features: - Bakeable – open or closed
- Long Life – Sealing surfaces exhibit negligible deformation with use
- Ease of Maintenance – Gold seal may be easily replaced in the field
- Low Ultimate Pressure – Only specially processed Type 304 Stainless Steel and pure gold are in contact with the vacuum system
- Low Sealed Conductance – Less than 10-13 liter/sec
 Valves
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