NYP series bitumen gear pumps are mainly composed of internal rotor, outside rotor, shaft, pump body, front cover,bracket, seal, bearing etc. We adopting packing seal or mechanical seal in the pumps' seal. When the handling medium is high temperature, high viscosity or strong corrosion, packing seal is adopted. When the handling medium easy become crystal, We can design the heat preservation jacket in pump body and front cover in order to melt the medium with steam when working. The pump can be also fitted with the safety valve. The pump set is composed of the pump, motor and base plate. The driving way is belt wheel driving or coupling driving. It is a kind of new positive displacement pump that's designed according to the different fields' requirements of petroleum, chemical industry, paint, grease, pharmacy, foodstuff, and so on. It's widely applyed to pumping a variety of mediums with different property and viscosity because of special structure and selected different pump's materials.