Resin pump NYP is speical for heavy oil, or high viscosity oil. Also can be work as a normal oil supplying pump. Resin Pump NYP High Viscosity Internal Gear Pump NYP series internal gear pump is for high viscosity oil. This pump is widely used in petroleum, foodstuff, medicine and othe chemical industries. Viscosity reaches 300,000CST, and the temperature reaches 200°C Working Principle:Internal ...