4-circuit-protection valve, M22 x 1,5, max. 10 bar, Po21: 7 bar, Po22: 7 bar, Po23: 7.3 bar, Po24: 7 bar, Pc21: 4.5 bar, Pc22: 4.5 bar, Pc23: 4.5 bar, Pc24: 4.5 bar 6.6505