In straight-way form, with separate deaeration and aeration lug, PN 10, DN 40 - 150
Deaeration from +2.0 up to +60 mbar (DV/ZU) resp.
from +60 up to +500 mbar (DV/ZU-F),
Aeration from -3.5 up to -50 mbar
Pressure and Vacuum Relief Valve, weight-loaded, 1.0619/1.4408
Pressure and Vacuum Relief Valve, spring-loaded, 1.0619/1.4408