1. Collect the liquid and send it to the next level

2. Realize energy conversion and convert speed energy head into pressure energy head

Spiral shape (low loss, high efficiency)

Ring shape (easy to process with geometric dimensions and excellent surface quality, suitable for multi-stage pumps)

Closed impeller, clean water pump

Semi-open impeller containing solid particles

Open impeller, containing more solid particles

Double suction impeller, suitable for multi-stage

Back-curved blade less than 90 degrees (commonly used)

Radial blade equal to 90 degrees

Forward curved blades greater than 90 degrees

filler

shaft

stuffing box

Gland

Liquid sealing ring

Main seals: moving ring, static ring

Auxiliary seals: O-ring, V-ring

Pressing parts: spring, push ring

Transmission parts: spring seat, key, pin, fixing screw