NYP series high viscosity gear pump is a kind of internal gear oil pump, also belongs to a new type of positive displacement pump. It is especially suitable for conveying high viscosity liquids in different fields of petroleum, chemical, paint and medicine. The pump's inner gear and outer gear rotate in the same direction, low noise, low abrasion (anti-abrasion) and long service life. Moreover, due to the unique structure and selected materials, it is widely used in a variety of media with different properties and viscosities.