1. Range of adjustment empty: 0.7 ... 1.2 bar2. Range of adjustment 1/4 laden: 1.7±0.3 bar3. Range of adjustment 1/2 laden: 2.8 ... 3.5 bar4. Range of adjustment 3/4 laden: 4.1±0.3 bar5. Range of adjustment fully laden: Reservoir pressure6. Empty pre-set: 0.8 bar7. Port threads: M 22x1.5