Rotary blower features:

体积小、风量大、噪声低、耗能省(回转式鼓风机采用运转压缩空气的原理，虽然体积小，但风量大、，静音运转是其他形式的风机无法比拟的。)

Small volume, large air volume, low noise and energy saving (Rotary blower adopts the principle of compressed air operation. Although it is small, it has large air volume and energy saving. Silent operation is incomparable to other types of fans.)

运转平稳，安装方便(小型机种运转时只要放置妥当则振动很小，不需要加装防振装置，安装方便。)

Stable operation and convenient installation (small models can operate with little vibration as long as they are properly placed, so there is no need to install anti vibration devices, which is convenient for installation.)

抗负荷变化，风量稳定(例如：污水处理曝气槽压力变化，则负荷变化，但风量随压力变化而变化甚微。)

Resistance to load change and stable air flow (for example, if the pressure of sewage treatment aeration tank changes, the load changes, but the air flow changes little with the pressure change.)

附有空气室，散气平稳(全部机种附有空气室，可防止空气脉动，散气平稳。)

Air chamber is attached to ensure stable air dispersion (All models are attached with air chamber to prevent air pulsation and ensure stable air dispersion.)

保养简单，故障少，寿命长(低转速，磨损小，寿命长。)

Simple maintenance, few faults, long service life (low speed, low wear, long service life)

回转式鼓风机缺点：

Disadvantages of rotary blower:

回转式风机系油润滑风机，日常使用需精心维护，特别是风机润滑系统的维护，鼓风机缺油使用会使风机严重损坏。

The rotary fan is an oil lubricated fan. Daily use requires careful maintenance, especially the maintenance of the fan lubrication system. The fan will be seriously damaged if the blower is used without oil.

回转式鼓风机是油润滑鼓风机，排出空气中会含有一定的油雾，增加水处理的技术难度，产生二次污染，尽管鼓风机厂家将回转式风机的油气分离罐（储气罐）不断的进行技术改进，但鼓风机压缩产生的高温使润滑油产生一定的蒸发是不可避免的。小型曝气鼓风机使用YH系列无油、低噪音水环式风机，它会让你的风机房更安静，空气更洁净，维护更简单。

The rotary blower is an oil lubricated blower, and the discharged air will contain a certain amount of oil mist, which will increase the technical difficulty of water treatment and cause secondary pollution. Although the blower manufacturer has continuously improved the technology of the oil and gas separation tank (gas tank) of the rotary blower, it is inevitable that the high temperature generated by the blower compression will cause certain evaporation of the lubricating oil. YH series oil-free and low-noise water ring fans are recommended for small aeration blowers, which will make your fan room quieter, the air cleaner and the maintenance simpler.