The impeller of billet compressor consists of hub, blade and cover. The cover of the submerged pump impeller and the rear cover are divided. The cover on the inlet side of the impeller is called
the front cover, and the cover on the other side is called the rear cover. According to the closed type impeller form, it can be divided into the following three:
Closed Impeller of billet turbo compressor wheel:
There are cover plates on both sides of the impeller, and there are 4-6 blades between the cover plates. The blade whose bending direction is opposite to the rotation direction of the pump is
called backward curved blade. Generally, the blades of the impeller are all curved blades. This closed type impeller is highly efficient and most used, and is suitable for pumping clean liquids
that do not contain solid particles and fibers. Closed impellers of billet compressor wheel are available in single and double suction versions. The double suction impeller of billet compressor
wheel has a larger flow rate than the single suction impeller.
Open Impeller of Billet Compressor Wheel:
There are no cover plates on both sides of the impeller, and the blades are connected together through the shaft holes. The open impeller of the billet compressor wheel has a simple structure and
is easy to manufacture, but has low efficiency and is suitable for conveying liquids containing more solid suspended matter or fibers.
Semi-open Impeller of Billet Compressor Wheel:
This type of impeller has only a rear cover plate. It can pump liquids that are easy to precipitate or contain solid suspended solids. The efficiency is between the open impeller and the closed
impeller.
If you want to know more types of china roll former, please visit our website.