一、S型单级双吸离心泵的应用范围：
S型单级双吸离心泵的零件用不锈钢板压制，经激光焊接而成，并有多种牌号的不锈钢可供选用，因而S型离心泵的用途十分广泛，主要适用于输送各种洁净水及轻腐蚀液体，可用于住宅供水及增压、工业锅炉给水、空调系统循环体会水、水处理和反渗透系统、食品工业、医药工业用水等。
二、S型单级双吸离心泵的工作条件：
流量范围：0.8m3/h~120 m3/h；
扬程范围：5.6m~330m；
温度范围：-20℃~120℃；
输送液体种类：各种清洁水及轻腐蚀液体；
离心泵泵腔承压：≤4.0MPa。
三、S型单级双吸离心泵的结构特点：
1. 结构紧凑 外形美观，稳定性好，便于安装。
2. 运行平稳 优化设计的双吸叶轮使轴向力减小到低限度，且有优异水力性能的叶型，离心泵泵壳内表面及叶轮表面具有抗汽蚀性能。
3. 轴承选用SKF及NSK轴承保证运行平稳，噪音低，使用寿命长。
4. 轴封选用机械密封或填料密封。能保证8000小时运行无泄漏。
5. 离心泵安装形式 装配时不需调整，可根据现场使用条件。分立式或卧式安装。
6. 加装自吸装置，可实现自动吸水，即不需安装底阀，不需真空泵，不需倒灌，离心泵可以启动。
四、S型单级双吸离心泵的示意图：
|
| 1.泵体 | 5.双吸密封环 | 9.填料压盖 |
| 2.泵盖 | 6.轴套 | 10.填料 |
| 3.叶轮 | 7.联轴器 |
|
| 4.轴 | 8.联轴体 |
|
五、S型单级双吸离心泵的型号意义：
S型单级双吸离心泵性能参数：
| 型 号 | 流 量(m3/h) | 扬 程 (m) | 必需汽蚀余量(m) | 转速 (r/min) | 电机功率(KW) |
| 150S-78 | 160 | 78 | 4.5 | 2950 | 55kW |
| 150S-78A | 140 | 60 | 4.5 | 2950 | 45kW |
| 150S-50 | 160 | 50 | 4.5 | 2950 | 37kW |
| 150S-50A | 140 | 39 | 4.5 | 2950 | 30kW |
| 150S-50B | 133 | 36 | 4.5 | 2950 | 22kW |
| 200S-95 | 280 | 95 | 5 | 2950 | 132kW |
| 200S-95A | 268 | 87 | 5 | 2950 | 110kW |
| 200S-95B | 245 | 72 | 5 | 2950 | 75kW |
| 200S-63 | 280 | 63 | 5 | 2950 | 75kW |
| 200S-63A | 245 | 48 | 5 | 2950 | 55kW |
| 200S-42 | 280 | 42 | 5 | 2950 | 45kW |
| 200S-42A | 245 | 36 | 5 | 2950 | 37kW |
| 250S-65 | 485 | 65 | 3.8 | 1450 | 132kW |
| 250S-65A | 420 | 48 | 3.8 | 1450 | 90kW |
| 250S-39 | 485 | 39 | 3.8 | 1450 | 75kW |
| 250S-36A | 420 | 29 | 3.8 | 1450 | 55kW |
| 250S-24 | 485 | 24 | 3.8 | 1450 | 45kW |
| 250S-24A | 420 | 20 | 3.8 | 1450 | 37kW |
| 250S-14 | 485 | 14 | 3.8 | 1450 | 30kW |
| 250S-14A | 420 | 10 | 3.8 | 1450 | 18.5kW |
| 300S-90 | 790 | 90 | 4.8 | 1450 | 315kW |
| 300S-90A | 756 | 78 | 4.8 | 1450 | 280kW |
| 300S-90B | 720 | 67 | 4.8 | 1450 | 220kW |
| 300S-58 | 790 | 58 | 4.8 | 1450 | 185kW |
| 300S-58A | 735 | 50 | 4.8 | 1450 | 160kW |
| 300S-58B | 685 | 43 | 4.8 | 1450 | 132kW |
| 300S-32 | 790 | 32 | 4.8 | 1450 | 90kW |
| 300S-32A | 700 | 26 | 4.8 | 1450 | 75kW |
| 300S-19 | 790 | 19 | 4.8 | 1450 | 55kW |
| 300S-19A | 700 | 15 | 4.8 | 1450 | 45kW |
| 300S-12 | 790 | 12 | 4.8 | 1450 | 37kW |
| 350S-125 | 1260 | 125 | 5.5 | 1450 | 630kW |
| 350S-125A | 1181 | 112 | 5.5 | 1450 | 560kW |
| 350S-125B | 1098 | 96 | 5.5 | 1450 | 500kW |
| 350S-75 | 1260 | 75 | 5.5 | 1450 | 360kW |
| 350S-75A | 1170 | 65 | 5.5 | 1450 | 300kW |
| 350S-75B | 1080 | 55 | 5.5 | 1450 | 225kW |
| 350S-44 | 1260 | 44 | 5.5 | 1450 | 220kW |
| 350D-44A | 1116 | 36 | 5.5 | 1450 | 160kW |
| 350S-26 | 1260 | 26 | 5.5 | 1450 | 132kW |
| 350S-26A | 1130 | 21 | 5.5 | 1450 | 90kW |
| 350S-16 | 1260 | 16 | 5.5 | 1450 | 75kW |
| 350S-16A | 1130 | 12 | 5.5 | 1450 | 55kW |
| 500S-98 | 2020 | 98 | 6 | 970 | 780kW |
| 500S-98A | 1872 | 83 | 6 | 970 | 650kW |
| 500S-98B | 1746 | 74 | 6 | 970 | 550kW |
| 500S-59 | 2020 | 59 | 6 | 970 | 460kW |
| 500S-59A | 1872 | 49 | 6 | 970 | 380kW |
| 500S-59B | 1746 | 40 | 6 | 970 | 310kW |
| 500S-35 | 2020 | 35 | 6 | 970 | 280kW |
| 500S-35A | 1746 | 27 | 6 | 970 | 215kW |
| 500S-22 | 2020 | 22 | 6 | 970 | 185kW |
| 500S-22A | 1746 | 17 | 6 | 970 | 132kW |
| 500S-13 | 2020 | 13 | 6 | 970 | 110kW |
| 600S-47 | 3170 | 47 | 7.5 | 970 | 550kW |
| 600S-32 | 3170 | 32 | 7.5 | 970 | 380kW |
| 600S-22 | 3170 | 22 | 7.5 | 970 | 250kW |
| 600S-22A | 2860 | 18 | 7.5 | 970 | 185KW |
| 600S32 | 3170 | 32 | 7.5 | 970 | 355KW |
| 600S-32A | 2850 | 26 | 7.5 | 970 | 280KW |
| 600S-47 | 3170 | 47 | 6..5 | 970 | 560KW |
| 600S-47A | 2920 | 40 | 6 | 970 | 450KW |
| 600S-75 | 3170 | 75 | 6 | 970 | 900KW |
| 600S-75A | 2950 | 65 | 6 | 970 | 710KW |
| 600S-75B | 2710 | 55 | 6 | 970 | 560KW |
| 600S-100 | 3170 | 100 | 6 | 970 | 1250KW |
| 600S-100A | 3000 | 90 | 6 | 970 | 1120KW |
| 600S-100B | 2830 | 80 | 6 | 970 | 900KW |
| 800S-22 | 5500 | 22 | 7 | 730 | 450KW |
| 4400 | 14 | 5 | 585 | 250KW |
| 800S-22A | 4830 | 17 | 7 | 730 | 315KW |
| 3870 | 11 | 5 | 585 | 185KW |
| 800S-32 | 5500 | 32 | 7 | 730 | 630KW |
| 4400 | 20 | 4.5 | 585 | 315KW |
| 800S-32A | 4950 | 26 | 7 | 730 | 450KW |
| 3960 | 17 | 4.5 | 585 | 250KW |
| 800S-47 | 5500 | 47 | 6.5 | 730 | 1000KW |
| 4400 | 30 | 4.2 | 585 | 450KW |
| 800S-47A | 5070 | 40 | 6.5 | 730 | 710KW |
| 4060 | 25 | 4.2 | 585 | 355KW |
| 800S-76 | 5500 | 76 | 6 | 730 | 1600KW |
| 4400 | 49 | 4.2 | 585 | 800KW |
| 800S-76A | 5080 | 65 | 6 | 730 | 1250KW |
| 4070 | 42 | 4.2 | 585 | 630KW |
| 800S-76B | 4680 | 55 | 6 | 730 | 1000KW |
| 3750 | 35 | 4 | 585 | 500KW |
