... 2.Voltage:DC12,DC2,AC110,or AC220 integrated pump and lift valve made of regulating valve, ... :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; ... Feature 1,The gear pump with lift valve is applicable to single-circuit and single-power hydraulic system. 2 ...