SolenoidZero Differential ...48171 Servo-Assisted 2/2-Way Diaphragm Valve, Type 0290, G 1, 24 V 50 Hz
Solenoid3/2-Way NC53969 Type 0331 Direct-Acting 3/2-Way Pivoted Armature Solenoid Valve, Flange 32 x 46 mm, 24 V DC