NYP Serise Internal Gear Pump

Brief Introduction
NYP serise internal gear pump is a kind of new positive displacement pump and is designed according to the requirements of the different fields, like petroleum, chemical industry, paint, medicine, foodstuff, and so on. It transfer all kinds of mediums with different viscosity for it has special structure and different pump materials.
Proper medium temperature:-10℃～200℃(about NYP0.78& NYP2.3:-10℃～80℃)
Proper medium viscosity:1.0cSt～300,000cSt(about NYP0.78 & NYP2.3,1.0cSt～10000cSt)
Type of structure(As gigure)
（1）Work principle
Driving gear （outside rotor）with internal tooth drives the internal rotor and turns in same direction in the full closed pump body.The pump casing and crescent of the front cover separate the inlet from the outlet. When it turns, negative pressure is formed at the suction port, then liquid be suctioned and be took to the outlet by rotor and be impelled from the discharge port as the gears mesh. The transportation of liquid finished.
（2）Structure Feature
As figure,The pumps are mainly composed of internal rotor, outside rotor, shaft, pump casing, front cover, seal, bearing etc.
The pump adopts packing seal or mechanical seal. When the delivered medium is high temperature, high viscosity or strong corrosion, packing seal should be adopted.
If the delivered medium is easy crystallization, we can design the heat preservation jacket on pump casing and front cover in order to melt the medium by steam when working. The pump can be fitted with the safty valve.
The pump set is composed of the pump, motor and baseplate.
The driving way is belt wheel driving or coupling driwing.
Advantages
Steady delivery without pulsation, little vibration and noise.
2) Outstanding self-priming abitity.
3) The pump can deliver the varied corrosion mediums if the proper material of parts selected.In addition ,the working temperature can reach 200℃.
4) The same rotary direction of internal rotor and outside rotor results in little wear and long operation life .
5) The pump's flow capacity can be changed through adjusting the speed.
6) It's specially suited to deliver high visc medium. ign the heat preservation jacket on pump casing and front cover in order to melt the medium by steam when working. The pump can be fitted with the safty valve.

Model Explanation

Performance Parameters