Gas ballast valves, manual

For connection to Hena 26 | 61 | 101, For manual opening and closing of gas ballast pipe, Customer benefit: Closed gas ballast enables ultimate vacuum of 0.3 hPa

For replacement of the standard gas ballast valve, Enables connection of inert gas, Customer benefit: Longer pump life time due to inertization

For replacement of the standard gas ballast valve, Enables connection of inert gas, Customer benefit: Longer pump life time due to inertization

For connection to Hena 202 | 302, For manual opening and closing of gas ballast pipe, Customer benefits: For pumping larger quantities of water vapor