The standard defines mounting and connecting dimensions as well as requirements for safety valves. The safety valve serves the purpose to avoid that a certain pressure is exceeded in rail equipment with inner over-pressure.
DIN 5589:1990 history
2024DIN 5589:2024-01 Compressed air equipment for rail vehicles - Safety valves with normal and solid stroke for compressed air systems / Note: Date of issue 2023-11-24*Intended as replacement for DIN 5589 (2008-09).
2008DIN 5589:2008-09 Compressed air equipment for rail vehicles - Safety valves with normal and solid stroke - Mounting and connecting dimensions, requirements
2008DIN 5589:2008 Compressed air equipment for rail vehicles - Safety valves with normal and solid stroke - Mounting and connecting dimensions, requirements
1990DIN 5589:1990 Compressed air equipment for rail vehicles; safety valves; mounting and connecting dimensions, requirements