PPG safety valve; set pressure 600 bar; 3/4" without TÜV certification. TÜV safety valves permanently set and sealed, DN 20-25. Material: stainless steel; thread: G 3/4"; response pressure [bar]: 600. Blow-off capacity [m³/h]: 1,002 Materials: Body: brass, seal: Viton Temperature range: -25°C to max. +180°C Media: compressed air and other non-toxic, non-flammable gases, free blow-off Note: These valves are type-tested and can only be supplied with a fixed setting.