GDL型立式多级管道泵是根据本公司ISG型立式离心泵及DL型立式多级离心泵的优点而设计的。GDL型泵在结构上采用了立式、分段形式，泵的吸入口与排出口设计在下方成一字形，并采用了*水力模型。泵的轴向力采用水力平衡方法解决，残余轴向力由一个球轴承承受，因而运转平稳、低噪音、占地面积小、装修方便。外筒体用不锈钢制造，外型美观，特别适合于高层建筑多台泵并联使用，以减少单泵机组配带功率，简化电控设备。适用于高低层建筑的住宅、医院、旅馆、百货大楼、办公大楼等的消防、生活供水以及空调机组循环、冷却水输送等。
型号意义:
| GDL型立式多级管道泵主要性能参数表 |
| 型号 | 流量（m3/h） | 扬程（m） | 吸程（m） | 电机功率（kw） |
| 25GDL2-12*3 | 2 | 36 | 7.5 | 1.1 |
| 25GDL2-12*4 | 2 | 48 | 7.5 | 1.1 |
| 25GDL2-12*5 | 2 | 60 | 7.5 | 1.5 |
| 25GDL2-12*6 | 2 | 72 | 7.5 | 1.5 |
| 25GDL2-12*7 | 2 | 84 | 7.5 | 2.2 |
| 25GDL2-12*8 | 2 | 96 | 7.5 | 2.2 |
| 25GDL2-12*9 | 2 | 108 | 7.5 | 2.2 |
| 25GDL2-12*10 | 2 | 120 | 7.5 | 3 |
| 25GDL2-12*11 | 2 | 132 | 7.5 | 3 |
| 25GDL2-12*12 | 4 | 144 | 7.5 | 3 |
| 25GDL4-11*3 | 4 | 33 | 7.5 | 1.1 |
| 25GDL4-11*4 | 4 | 44 | 7.5 | 1.5 |
| 25GDL4-11*5 | 4 | 55 | 7.5 | 2.2 |
| 25GDL4-11*6 | 4 | 66 | 7.5 | 2.2 |
| 25GDL4-11*7 | 4 | 77 | 7.5 | 3 |
| 25GDL4-11*8 | 4 | 88 | 7.5 | 3 |
| 25GDL4-11*9 | 4 | 99 | 7.5 | 3 |
| 25GDL4-11*10 | 4 | 110 | 7.5 | 4 |
| 25GDL4-11*11 | 4 | 121 | 7.5 | 4 |
| 25GDL4-11*12 | 4 | 132 | 7.5 | 4 |
| 40GDL6-12*3 | 6 | 36 | 7.5 | 1.5 |
| 40GDL6-12*4 | 6 | 48 | 7.5 | 2.2 |
| 40GDL6-12*5 | 6 | 60 | 7.5 | 2.2 |
| 40GDL6-12*6 | 6 | 72 | 7.5 | 3 |
| 40GDL6-12*7 | 6 | 84 | 7.5 | 3 |
| 40GDL6-12*8 | 6 | 96 | 7.5 | 4 |
| 40GDL6-12*9 | 6 | 108 | 7.5 | 4 |
| 40GDL6-12*10 | 6 | 120 | 7.5 | 4 |
| 40GDL6-12*11 | 6 | 132 | 7.5 | 5.5 |
| 40GDL6-12*12 | 6 | 144 | 7.5 | 5.5 |
| 50GDL12-15*2 | 12 | 30 | 7 | 2.2 |
| 50GDL12-15*3 | 12 | 45 | 7 | 3 |
| 50GDL12-15*4 | 12 | 60 | 7 | 4 |
| 50GDL12-15*5 | 12 | 75 | 7 | 5.5 |
| 50GDL12-15*6 | 12 | 90 | 7 | 5.5 |
| 50GDL12-15*7 | 12 | 105 | 7 | 7.5 |
| 50GDL12-15*8 | 12 | 120 | 7 | 7.5 |
| 50GDL12-15*9 | 12 | 135 | 7 | 11 |
| 50GDL12-15*10 | 12 | 150 | 7 | 11 |
| 50GDL18-15*2 | 18 | 30 | 7 | 3 |
| 50GDL18-15*3 | 18 | 45 | 7 | 4 |
| 50GDL18-15*4 | 18 | 60 | 7 | 5.5 |
| 50GDL18-15*5 | 18 | 75 | 7 | 7.5 |
| 50GDL18-15*6 | 18 | 90 | 7 | 7.5 |
| 50GDL18-15*7 | 18 | 105 | 7 | 11 |
| 50GDL18-15*8 | 18 | 120 | 7 | 11 |
| 50GDL18-15*9 | 18 | 135 | 7 | 15 |
| 50GDL18-15*10 | 18 | 150 | 7 | 15 |
| 65GDL24-12*2 | 24 | 24 | 6 | 3 |
| 65GDL24-12*3 | 24 | 36 | 6 | 4 |
| 65GDL24-12*4 | 24 | 48 | 6 | 5.5 |
| 65GDL24-12*5 | 24 | 60 | 6 | 7.5 |
| 65GDL24-12*6 | 24 | 72 | 6 | 7.5 |
| 65GDL24-12*7 | 24 | 84 | 6 | 11 |
| 65GDL24-12*8 | 24 | 96 | 6 | 11 |
| 65GDL24-12*9 | 24 | 108 | 6 | 15 |
| 65GDL24-12*10 | 24 | 120 | 6 | 15 |
| 80GDL36-12*2 | 36 | 24 | 5.5 | 4 |
| 80GDL36-12*3 | 36 | 36 | 5.5 | 5.5 |
| 80GDL36-12*4 | 36 | 48 | 5.5 | 7.5 |
| 80GDL36-12*5 | 36 | 60 | 5.5 | 11 |
| 80GDL36-12*6 | 36 | 72 | 5.5 | 11 |
| 80GDL36-12*7 | 36 | 84 | 5.5 | 15 |
| 80GDL36-12*8 | 36 | 96 | 5.5 | 15 |
| 80GDL36-12*9 | 36 | 108 | 5.5 | 18.5 |
| 80GDL36-12*10 | 36 | 120 | 5.5 | 18.5 |
| 80GDL54-14*2 | 54 | 28 | 5 | 7.5 |
| 80GDL54-14*3 | 54 | 42 | 5 | 11 |
| 80GDL54-14*4 | 54 | 56 | 5 | 15 |
| 80GDL54-14*5 | 54 | 70 | 5 | 18.5 |
| 80GDL54-14*6 | 54 | 894 | 5 | 18.5 |
| 80GDL54-14*7 | 54 | 98 | 5 | 22 |
| 100GDL72-14*2 | 72 | 28 | 4.5 | 11 |
| 100GDL72-14*3 | 72 | 42 | 4.5 | 15 |
| 100GDL72-14*4 | 72 | 56 | 4.5 | 18.5 |
| 100GDL72-14*5 | 72 | 70 | 4.5 | 22 |
| 100GDL72-14*6 | 72 | 74 | 4.5 | 30 |
| 100GDL72-14*7 | 72 | 98 | 4.5 | 30 |
