GDL型立式多級管道泵在結構上采用了立式、分段形式，泵的吸入口與排出口設計在下方成一字形，并采用了水力模型。是本廠設計人員根據ISG型立式離心泵及DL型立式多級離心泵的優點而設計的。GDL型多級泵特別適用于高層建筑多臺泵并聯使用，以減少單泵機組配帶功率，簡化電控設備。適用于高低層建筑的住宅、醫院、旅館、百貨大樓、辦公大樓等的消防、生活供水以及空調機組循環、冷卻水輸送等。GDL型泵泵的軸向力采用水力平衡方法解決，殘余軸向力由一個球軸承承受，因而運轉平穩、低噪音、占地面積小、裝修方便。外筒體用不銹鋼制造，外型美觀大方，使用壽命長。
型號意義:
例如：50GDL18-15×6
50代表泵進出口徑（mm）
GDL代表立式多級管道泵
18代表設計點流量（m3/h）
15代表單級揚程（m）
6代表泵級數
GDL多級管道泵性能參數表
| 型號 | 口徑 (mm) | 級數 | 流量 （m3/h） | 揚程 （m） | 電機功率 （kw） |
| 25GDL2-12x3 | 25 | 3 | 2 | 36 | 1.1 |
| 25GDL2-12x4 | 4 | 48 | 1.1 |
| 25GDL2-12x5 | 5 | 60 | 1.5 |
| 25GDL2-12x6 | 6 | 72 | 1.5 |
| 25GDL2-12x7 | 7 | 84 | 2.2 |
| 25GDL2-12x8 | 8 | 96 | 2.2 |
| 25GDL2-12x9 | 9 | 108 | 2.2 |
| 25GDL2-12x10 | 10 | 120 | 3 |
| 25GDL2-12x11 | 11 | 132 | 3 |
| 25GDL2-12x12 | 12 | 144 | 3 |
| 25GDL2-12x13 | 13 | 156 | 4 |
| 25GDL2-12x14 | 14 | 168 | 4 |
| 25GDL2-12x15 | 15 | 180 | 4 |
| 25GDL4-11x3 | 3 | 4 | 33 | 1.1 |
| 25GDL4-11x4 | 4 | 44 | 1.5 |
| 25GDL4-11x5 | 5 | 55 | 2.2 |
| 25GDL4-11x6 | 6 | 66 | 2.2 |
| 25GDL4-11x7 | 7 | 77 | 3 |
| 25GDL4-11x8 | 8 | 88 | 3 |
| 25GDL4-11x9 | 9 | 99 | 3 |
| 25GDL4-11x10 | 10 | 110 | 4 |
| 25GDL4-11x11 | 11 | 121 | 4 |
| 25GDL4-11x12 | 12 | 132 | 4 |
| 25GDL4-11x13 | 13 | 143 | 4 |
| 25GDL4-11x14 | 14 | 154 | 5.5 |
| 25GDL4-11x15 | 15 | 165 | 5.5 |
| 40GDL6-12x3 | 40 | 3 | 6 | 36 | 1.5 |
| 40GDL6-12x4 | 4 | 48 | 2.2 |
| 40GDL6-12x5 | 5 | 60 | 2.2 |
| 40GDL6-12x6 | 6 | 72 | 3 |
| 40GDL6-12x7 | 7 | 84 | 3 |
| 40GDL6-12x8 | 8 | 96 | 4 |
| 40GDL6-12x9 | 9 | 108 | 4 |
| 40GDL6-12x10 | 10 | 120 | 4 |
| 40GDL6-12x11 | 11 | 132 | 5.5 |
| 40GDL6-12x12 | 12 | 144 | 5.5 |
| 40GDL6-12x13 | 13 | 156 | 7.5 |
| 40GDL6-12x14 | 14 | 168 | 7.5 |
| 40GDL6-12x15 | 15 | 180 | 7.5 |
| 50GDL12-15x2 | 50 | 2 | 12 | 30 | 2.2 |
| 50GDL12-15x3 | 3 | 45 | 3 |
| 50GDL12-15x4 | 4 | 60 | 4 |
| 50GDL12-15x5 | 5 | 75 | 5.5 |
| 50GDL12-15x6 | 6 | 90 | 5.5 |
| 50GDL12-15x7 | 7 | 105 | 7.5 |
| 50GDL12-15x8 | 8 | 120 | 7.5 |
| 50GDL12-15x9 | 9 | 135 | 11 |
| 50GDL12-15x10 | 10 | 150 | 11 |
| 50GDL18-15x2 | 2 | 18 | 30 | 3 |
| 50GDL18-15x3 | 3 | 45 | 4 |
| 50GDL18-15x4 | 4 | 60 | 5.5 |
| 50GDL18-15x5 | 5 | 75 | 7.5 |
| 50GDL18-15x6 | 6 | 90 | 7.5 |
| 50GDL18-15x7 | 7 | 105 | 11 |
| 50GDL18-15x8 | 8 | 120 | 11 |
| 50GDL18-15x9 | 9 | 135 | 15 |
| 50GDL18-15x10 | 10 | 150 | 15 |
| 65GDL24-12x2 | 65 | 2 | 24 | 24 | 3 |
| 65GDL24-12x3 | 3 | 36 | 4 |
| 65GDL24-12x4 | 4 | 48 | 5.5 |
| 65GDL24-12x5 | 5 | 60 | 7.5 |
| 65GDL24-12x6 | 6 | 72 | 7.5 |
| 65GDL24-12x7 | 7 | 84 | 11 |
| 65GDL24-12x8 | 8 | 96 | 11 |
| 65GDL24-12x9 | 9 | 108 | 15 |
| 65GDL24-12x10 | 10 | 120 | 15 |
| 65GDL24-12x11 | 11 | 132 | 15 |
| 65GDL24-12x12 | 12 | 144 | 18.5 |
| 80GDL36-12x2 | 80 | 2 | 36 | 24 | 4 |
| 80GDL36-12x3 | 3 | 36 | 5.5 |
| 80GDL36-12x4 | 4 | 48 | 7.5 |
| 80GDL36-12x5 | 5 | 60 | 11 |
| 80GDL36-12x6 | 6 | 72 | 11 |
| 80GDL36-12x7 | 7 | 84 | 15 |
| 80GDL36-12x8 | 8 | 96 | 15 |
| 80GDL36-12x9 | 9 | 108 | 18.5 |
| 80GDL36-12x10 | 10 | 120 | 18.5 |
| 80GDL54-14x2 | 2 | 54 | 28 | 7.5 |
| 80GDL54-14x3 | 3 | 42 | 11 |
| 80GDL54-14x4 | 4 | 56 | 15 |
| 80GDL54-14x5 | 5 | 70 | 18.5 |
| 80GDL54-14x6 | 6 | 84 | 18.5 |
| 80GDL54-14x7 | 7 | 98 | 22 |
| 80GDL54-14x8 | 8 | 112 | 30 |
| 80GDL54-14x9 | 9 | 126 | 30 |
| 80GDL54-14x10 | 10 | 140 | 37 |
| 100GDL72-14x2 | 100 | 2 | 72 | 28 | 11 |
| 100GDL72-14x3 | 3 | 42 | 15 |
| 100GDL72-14x4 | 4 | 56 | 18.5 |
| 100GDL72-14x5 | 5 | 70 | 22 |
| 100GDL72-14x6 | 6 | 84 | 30 |
| 100GDL72-14x7 | 7 | 98 | 30 |
| 100GDL72-14x8 | 8 | 112 | 37 |
| 100GDL72-14x9 | 9 | 126 | 37 |
| 100GDL72-14x10 | 10 | 140 | 45 |
| 125GDL100-20x2 | 125 | 2 | 100 | 40 | 18.5 |
| 125GDL100-20x3 | 3 | 60 | 30 |
| 125GDL100-20x4 | 4 | 80 | 37 |
| 125GDL100-20x5 | 5 | 100 | 45 |
| 125GDL100-20x6 | 6 | 120 | 55 |
| 125GDL100-20x7 | 7 | 140 | 75 |
| 125GDL100-20x8 | 8 | 160 | 75 |
| 125GDL100-20x9 | 9 | 180 | 90 |
| 125GDL100-20x10 | 10 | 200 | 90 |
| 150GDL160-20x2 | 150 | 2 | 160 | 40 | 30 |
| 150GDL160-20x3 | 3 | 60 | 37 |
| 150GDL160-20x4 | 4 | 80 | 55 |
| 150GDL160-20x5 | 5 | 100 | 75 |
| 150GDL160-20x6 | 6 | 120 | 75 |
| 150GDL160-20x7 | 7 | 140 | 90 |
