TM720D-400是采用最新的材料及生产技术的一款高脱盐率、高产水量、耐化学清洗的膜元件。有效膜面积为400平方英尺，给水流道34mil。适合于含盐量10000ppm以下的苦咸水淡化，以及微污染地表水的脱盐、冷却循环排污水的回用等各种应用领域。TM720D-400是目前拥有最高产水量，最高脱盐率的苦咸水膜元件；具有最宽泛的清洗pH值范围（pH1~13），可以快速有效的解决膜元件的污染问题；反渗透膜片能够承受一定范围内，由于操作失误等原因造成的轻微余氯泄露事故，提高了系统的安全性。
膜元件性能规范
测试条件： | 操作压力 | 225 psi (1.55MPa) |
| 测试液温度 | 77ﾟＦ (25 ℃) |
| 测试液浓度 | 2000 mg/L (as NaCl) |
| 单只膜元件水回收率 | 15％ |
| 测试液pH | 7 |
单支膜元件最低脱盐率 | 99.65％ |
最小透过水量 | 8,900 gpd (33.6m3/d) |
使用极限条件
最高操作压力·············································································600psi(4.1MPa)
最高进水流量·············································································70gpm(382m3/d)
最高进水温度·············································································113ﾟＦ(45 ℃)
最大进水SDI··············································································5
进水自由氯浓度··········································································＜0.1mg/L
连续运行时进水pH范围····························································2－11
化学清洗时进水pH范围····························································1－13
单个膜元件最大压力损失···························································15psi(0.1 MPa)
单个膜组件最大压力损失···························································50psi (0.34MPa)
