CZX型自吸裝置是根據射流原理，參考國外先進技術研制的新產品。CZX型自吸裝置是靠氣體的噴射而實現抽氣。裝置體積小，重量輕，使用方便，它可直接安裝在泵的機架上，與泵抽氣孔連接，使無自吸能力的泵具有自吸能力，自吸裝置能保證泵內充滿水時，自動啟動泵，並在泵啟動後，自動關閉自吸裝置。特別適合船用離心泵配套使用。

A based on the jet flow principle，the CZX Type self-suction device is the latest product developed in reference to the advanced technologies of other countries。The CZX Type self-suction device realizes the suction via the jet of gas。This device features in compact structure，light weight and easy operation。It can be directly installed on the pump frame and connected to the suction hole of the pump，so that the pump without self-suction device can perform self-suction。The self-suction can ensure automatic start of the pump when the pump is filled with water. The self-suction device is automatically closed after the pump is started。It is particularly suitable to the marine centrifugal pump.