... -free Smooth, Pulseless Delivery Strong chemical resistance Magnetic Drive Micro Gear Pump ( AC motor, 220VAC / 380VAC) Product ... Introduction: 1. Using magnetic coupling drive without leakage, 316 stainless steel shell, PEK or PPS materials ... the flow can be realized without steps. 2. Widely used in medical machinery, fine chemicals, water treatment printing, cleaning, ...