... drive,leak-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 ... (except for the freezing) 6. Working way: continuous working 7. Apply the media of: acid and alkali, salt, organic ...