... Magnetic Drive DC Mini Gear Pump (DC brushless motor, outside controller) Introduction: 1. Using magnetic coupling drive without leakage, 316 L ... DC motor combination with smaller size, with built-in limit pressure valve, the flow rate can be realized without steps. 2 ... 4mm, "09" means 9mm, "13" means 13mmDimension (mm) ModelMax Head Pressure (Bar)Max Flow scope (ml/Min)Power (W)Voltage (V ...