... 2.Voltage:DC12,DC2,AC110,or AC220 integrated pump and lift valve made of regulating valve,check ... :Compose of modular check valve,manifold block and gear pump.Voltage of modular check valve : AC220V, AC110V ,DC24V ... ,or DC12VDisplacement of gear pump:GPY-3R: 3cc/rev;GPY-4R: 4cc/rev;GRY ... 5R: 11.5cc/rev.Feature 1,The gear pump with lift valve is applicable to single-circuit ...