The USP of the NARVA vacuum tubes are the new and highly robust glass-metal connectors
The glass is not subjected to tensile stresses
This makes the tubes much less susceptible to fracture
Effortless absorption of strong axial and shear forces
Patented protection for this NARVA solution
In accordance with EN 12975-2, this structure is resistant to both cavitation impacts[AR1] as well as the impact of temperature variations caused by cold water straight from the stagnation state