4-circuit-protection valve, M16 x 1,5, M22 x 1,5, max. 20 bar, Po21: 8 bar, Po22: 8 bar, Po23: 8.3 bar, Po24: 8 bar, Pc21: 5.5 bar, Pc22: 5.5 bar, Pc23: 5.5 bar, Pc24: 5.5 bar 4.64458