产品说明：
GDD型泵是管道式安装的立式单级清水离心泵，由于采用了低转速电机，大幅度降低了运行噪音及振动，延长 了轴承及其易损件的使用寿命。本型泵效率高，己获得中国节能产品称号。广泛应用于工农业给排水、自来水加压、高层建筑生活供水以及空调、暖气循环系统中冷冻水及暖水的输送。

输送介质：
稀释的、清洁的、不腐蚀的、不爆炸的清水及物理 化学性质类似水不含固体颗粒或纤维的液体。

性能及特点:
采用专门设计制造的低转速低噪声电动机驱动，电机和叶轮等转动部件作了平衡试验，特别适用於对环境噪音要求高的场 合。该型泵功率在30kW以下的泵的叶轮直接安装在电机加长轴上37kW以上的泵采用夹式联抽器与电机连接。拆开泵盖和叶轮 时不需拆卸吸进和排出管路即可更换密封和叶轮。出水口处于同一轴线上，而且口径相同，可以象阀门一样安装在管路上，安装方便简单。

APPLICATIONS
The type of GDD is the vertical single stage (single suction or double suction) inline centrifugal pumps for clean water. They are coupled with low speed motors, the low speed motor can decrease the operating noise and operating vibration, prolong the lifetime of the bearings and wear parts. This type of pumps are high efficiency pumps, it has obtained title of China energy-saving products.GDD pumps are widely used in industry and agriculture water supply and drainage, water boosting, water supply for high building, central air-conditioning, heating system circulation for cool water or hot water transportation.

APPLICATIONS
The low noise and low speed motors are designed specially, the rotor parts of the motor are balanced, such kind of pumps are suitable for the environment which requires low noise condition. If the power is lower than 30Kw, the impeller of pumps are assembled to the motor shaft, if the power is more than 37Kw, the pumps and motors are connected with clamp couplings. It doesn’t have to remove the inlet and outlet pipeline when dissembling the pump cover and impeller.The inlet and outlet are in the same axis and same diameter. It is like a valve assembling in the pipeline, easy installation.