Through the mutual engagement of the main and driven screws in the pump body, and the cooperation of the screw and the hole of the pump body, the twin screw pump forms a sealed cavity in the pump body. When the screw rotates, these sealed cavities continuously move forward. Push the liquid in the sealed cavity to the outlet to discharge, so as to achieve the purpose of pumping liquid.

3GB thermal insulation screw pump is a positive displacement pump. It has the advantages of simple structure, small volume, stable and reliable operation at high speed, small pressure pulsation, stable flow, low noise and high efficiency. The 3GB thermal screw pump is suitable for the lubrication of fuel oil, lubricating oil, hydraulic oil, heavy oil, asphalt and other similar oils.

YQB pump is a positive displacement vane pump with advanced structure. The curved surface of the stator is composed of composite curves. Both ends adopt mechanical seals. Each fixed and mating end surface adopts an "O" seal ring. The rotating parts adopt metal corresponding to non-metallic parts. It has the function of safe and reliable use and multi-purpose in one machine.

2BV Water Ring Vacuum Pump for air and water vapour pressure to breathe, 33mbar absolute pressure (97%), vacuum pump suction pressure when in 80mbar below the condition, long-term work connected with protecting tube cavitation erosion of pump injector, i.e., protecting atmosphere, inspiratory pressure can reach 10mbar, injector pump can be directly mounted in a compressor, the pressure, to 0.26 MPa (maximum absolute pressure).

FB Chemical Pump is applicable for the medium containing no solid particles with a medium temperature range of 0-120 degree censius and the inlet pressure not larger than 2kg/cm2.

YQB pump is a positive displacement vane pump with advanced structure. The curved surface of the stator is composed of composite curves. Both ends adopt mechanical seals. Each fixed and mating end surface adopts an "O" seal ring. The rotating parts adopt metal corresponding to non-metallic parts. , It has the function of safe and reliable use and multi-purpose in one machine.