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 connection to Hena 202 | 302, For manual opening and closing of gas ballast pipe, Customer benefits, For pumping larger quantities of water vapor
Don't worry we won't leave you in a vacuum