Klempnern
RIEGLER 104811-229.01-1,2 Sicherheitsventil, Messing, G 1/2, Ansprechdruck 1,2 bar, 1Stk
For compressed air and non-toxic, non-flammable gases, cannot be used for liquids due to free blow-off, not suitable for steam. These valves are TÜV approved and have a TÜV type test number.
https://www.spardeingeld.de/klempnern/riegler-104811-229-01-1-2-sicherheitsventil-messing-g-oid11281416483.html